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How to Install R on Ubuntu 15.10

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<span style="color: #990000; font-size: large;"><u>Installing R on Ubuntu 15.10</u></span></h1>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiv3s0gpPWiNS8sFiRQ0ilWI4cw7L07aMuNvPNzkZ_LudF-Z8vjj8CX2Von03FAtVgIJrMn9bjN70f7g-ubG96yRnQkio1HM4ep-FsoSEJdWw_IG25yOlyxAt-lhYhho3J6fsnsyXZx6MzT/s1600/Rlogo_hackthesec.co.in.png" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiv3s0gpPWiNS8sFiRQ0ilWI4cw7L07aMuNvPNzkZ_LudF-Z8vjj8CX2Von03FAtVgIJrMn9bjN70f7g-ubG96yRnQkio1HM4ep-FsoSEJdWw_IG25yOlyxAt-lhYhho3J6fsnsyXZx6MzT/s1600/Rlogo_hackthesec.co.in.png" /></a><span style="color: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">R is a programming language and software environment for statistical computing and graphics supported by the R Foundation for Statistical Computing.The R language is widely used among statisticians and data miners for developing statistical software and data analysis Polls, surveys of data miners, and studies of scholarly literature databases show that R's popularity has increased substantially in recent years.</span></span></div>
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<span style="color: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">R is an implementation of the S programming language combined with lexical scoping semantics inspired by Scheme.S was created by John Chambers while at Bell Labs. There are some important differences, but much of the code written for S runs unaltered.</span></span></div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg9junrIIkb8EY0_mU_WR180LPDYuEMASRIbxl7US5fRknWKQCS7TIA4N6-4mXkC3Wbwsw3VEOF6yNJbzuL6e_KQvg_1x04PG-EgCR7qP4iPsIF3PEnbr2Ves_CNYht6L9oIXkf_nDuo6ER/s1600/why-learn-r_hackthesec.co.in.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg9junrIIkb8EY0_mU_WR180LPDYuEMASRIbxl7US5fRknWKQCS7TIA4N6-4mXkC3Wbwsw3VEOF6yNJbzuL6e_KQvg_1x04PG-EgCR7qP4iPsIF3PEnbr2Ves_CNYht6L9oIXkf_nDuo6ER/s1600/why-learn-r_hackthesec.co.in.jpg" /></a></div>
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<span style="color: #0b5394; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><b><u>Installing R Programming Language</u></b></span></span></div>
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<span style="color: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">You can install R by executing:</span></span></div>
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<pre style="background-attachment: initial; background-clip: initial; background-color: #363636; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; border-radius: 7px; border: 1px solid rgb(221, 221, 221); font-stretch: inherit; margin-bottom: 15px; margin-top: 15px; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline;"><span style="color: white; font-family: Monaco, Courier New, DejaVu Sans Mono, Bitstream Vera Sans Mono, monospace;"><span style="font-size: 15px; line-height: 19px; white-space: pre-wrap;">apt-get -y install r-base</span></span></pre>
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<span style="color: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">Try running the command 'R' (capital letter).</span></span></div>
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<pre style="background-attachment: initial; background-clip: initial; background-color: #363636; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; border-radius: 7px; border: 1px solid rgb(221, 221, 221); font-stretch: inherit; margin-bottom: 15px; margin-top: 15px; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline;"><span style="color: white; font-family: Monaco, Courier New, DejaVu Sans Mono, Bitstream Vera Sans Mono, monospace;"><span style="font-size: 15px; line-height: 19px; white-space: pre-wrap;">R version 3.2.2 (2015-08-14) -- "Fire Safety"
Copyright (C) 2015 The R Foundation for Statistical Computing
Platform: x86_64-pc-linux-gnu (64-bit)

R is free software and comes with ABSOLUTELY NO WARRANTY.
You are welcome to redistribute it under certain conditions.
Type 'license()' or 'licence()' for distribution details.

Natural language support but running in an English locale

R is a collaborative project with many contributors.
Type 'contributors()' for more information and
'citation()' on how to cite R or R packages in publications.

Type 'demo()' for some demos, 'help()' for on-line help, or
'help.start()' for an HTML browser interface to help.
Type 'q()' to quit R.</span></span></pre>
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<span style="color: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">Quit:</span></span></div>
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<span style="color: #0b5394; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><b><u>Installing packages</u></b></span></span></div>
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<span style="color: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">R packages are packages that extend the capabilities of R. Enter R:</span></span></div>
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<pre style="background-attachment: initial; background-clip: initial; background-color: #363636; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; border-radius: 7px; border: 1px solid rgb(221, 221, 221); font-stretch: inherit; margin-bottom: 15px; margin-top: 15px; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline;"><span style="color: white; font-family: Monaco, Courier New, DejaVu Sans Mono, Bitstream Vera Sans Mono, monospace;"><span style="font-size: 15px; line-height: 19px; white-space: pre-wrap;">R</span></span></pre>
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<span style="color: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">There are two ways to install R packages. First of all, if you want to install a package only for the current user, you can execute the following in R:</span></span></div>
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<pre style="background-attachment: initial; background-clip: initial; background-color: #363636; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; border-radius: 7px; border: 1px solid rgb(221, 221, 221); font-stretch: inherit; margin-bottom: 15px; margin-top: 15px; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline;"><span style="color: white; font-family: Monaco, Courier New, DejaVu Sans Mono, Bitstream Vera Sans Mono, monospace;"><span style="font-size: 15px; line-height: 19px; white-space: pre-wrap;">install.packages("name")</span></span></pre>
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<span style="color: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">If you want to install a package available for all users on the system, there are multiple mirrors for both R and its packages. Execute:</span></span></div>
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<pre style="background-attachment: initial; background-clip: initial; background-color: #363636; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; border-radius: 7px; border: 1px solid rgb(221, 221, 221); font-stretch: inherit; margin-bottom: 15px; margin-top: 15px; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline;"><span style="color: white; font-family: Monaco, Courier New, DejaVu Sans Mono, Bitstream Vera Sans Mono, monospace;"><span style="font-size: 15px; line-height: 19px; white-space: pre-wrap;">su - -c "R -e \"install.packages('name', repos = 'http://cran.rstudio.com/')\""</span></span></pre>
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<span style="font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><span style="color: #333333;">Replace </span><b><span style="color: red;">name</span></b><span style="color: #333333;"> with the package name.</span></span></span></div>
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<b>Please note: </b>that you do not want to install R with packages on a server with less than 1 GB RAM.</div>
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For further learning, please visit the <a href="http://www.r-project.org/" target="_blank">R website.</a></div>
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How to Install R on Ubuntu 15.10

Installing R on Ubuntu 15.10 R is a programming language and software environment for statistical computing and graphics supported by t...

How to Delete Files Older than X Number of Days in Linux

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<u><span style="color: #990000;">Delete Files Older than X Number of Days in Linux</span></u></h2>
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<span style="color: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">How to keep limited amount of backup files or how to delete backup files or any file than older then x number of Days.</span></span></div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh1XyDsm5bthyO-_-OqpH89oK8Sw-efgEPeY_inf32JcMAXIYo2vTx-PBhzPdnMbUz0aJXJSiqDm9USNl0cM4lj24WhhGm858N8_Wl43zO7AKVMzSdgXeLDYmhRyHQraYf_12AoDqRPhk4Z/s1600/delete_x_number_files_hackthesec.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh1XyDsm5bthyO-_-OqpH89oK8Sw-efgEPeY_inf32JcMAXIYo2vTx-PBhzPdnMbUz0aJXJSiqDm9USNl0cM4lj24WhhGm858N8_Wl43zO7AKVMzSdgXeLDYmhRyHQraYf_12AoDqRPhk4Z/s1600/delete_x_number_files_hackthesec.jpg" /></a></div>
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Using find utility we can easily figure out files older than x number of days and then use the rm command to delete them.</div>
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Here is combination of find and rm command to find and delete older files using some interesting arguments.</div>
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<span style="font-size: 15px; line-height: 26px;"><b><u><span style="color: #0b5394;">Find All Files Inside Directory and Delete Files which is Older Than 10 Days</span></u></b></span></div>
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<pre style="background-attachment: initial; background-clip: initial; background-color: #363636; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 7px; border: 1px solid rgb(221, 221, 221); font-stretch: inherit; margin-bottom: 15px; margin-top: 15px; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline;"><span style="color: white; font-family: Monaco, Courier New, DejaVu Sans Mono, Bitstream Vera Sans Mono, monospace;"><span style="font-size: 15px; line-height: 19px; white-space: pre-wrap;">find /location/to/find/files/* -mtime +10 -exec rm {} \;</span></span></pre>
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<span style="color: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><b><u>Command Explanation:</u></b></span></span></div>
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<span style="font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><b><span style="color: #333333;">1) </span><span style="color: red;">find /location/to/find/files/*</span></b></span></span></div>
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<span style="color: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">=This command use to find files in Linux operating system. Next part of this command is /locatin/to/find/files/ which means find files inside this directory suppose I have directory on root named backup so my command will be "find /backup/*".</span></span></div>
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<span style="font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><div>
<b><span style="color: #333333;">2) </span><span style="color: red;">mtime +10</span></b></div>
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=The next argument -mtime, is used to specify the number of days. In our example we uses -mtime +10 so it will find files older than 10 days.</div>
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<span style="font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><b><span style="color: #333333;">3) </span><span style="color: red;">-exec rm {} \;</span></b></span></span></div>
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<span style="color: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">=The last argument contains two parts, "-exec" allows you to pass an other command such as rm, and the second part "{} \; " is required to end the command.</span></span></div>
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<span style="color: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><br /></span></span></div>
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<span style="color: #0b5394; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><b><u>Delete Files which is Older Than 5 Days With .tar File Extension.</u></b></span></span></div>
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<pre style="background-attachment: initial; background-clip: initial; background-color: #363636; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 7px; border: 1px solid rgb(221, 221, 221); font-stretch: inherit; margin-bottom: 15px; margin-top: 15px; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline;"><span style="color: white; font-family: Monaco, Courier New, DejaVu Sans Mono, Bitstream Vera Sans Mono, monospace;"><span style="font-size: 15px; line-height: 19px; white-space: pre-wrap;">find /backup -name "*.tar" -type f -mtime +5 -exec rm -fr {} \;</span></span></pre>
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<span style="color: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><b>Very Important:</b> Be VERY careful to supply an absolute path while using "rm" commands!</span></span></div>
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<span style="color: #0b5394; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><b><u>Find and Delete Files using Find Command.</u></b></span></span></div>
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<span style="color: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">Same task you can perform using find command only. See below example:</span></span></div>
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<pre style="background-attachment: initial; background-clip: initial; background-color: #363636; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 7px; border: 1px solid rgb(221, 221, 221); font-stretch: inherit; margin-bottom: 15px; margin-top: 15px; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline;"><span style="color: white; font-family: Monaco, Courier New, DejaVu Sans Mono, Bitstream Vera Sans Mono, monospace;"><span style="font-size: 15px; line-height: 19px; white-space: pre-wrap;">find /location/to/find/files/* -mtime +10 -type f -delete</span></span></pre>
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<span style="color: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">Tip:- you can add this command in bash script and automate this process using <a href="http://www.hackthesec.co.in/2016/03/how-to-setup-linux-crontab.html" target="_blank">cron job utility</a>.</span></span></div>
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<span style="color: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><br /></span></span></div>
<div style="color: #333333; font-family: verdana, geneva, sans-serif; font-size: 15px; line-height: 26px;">
<a href="http://www.hackthesec.co.in/">www.hackthesec.co.in</a></div>
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How to Delete Files Older than X Number of Days in Linux

Delete Files Older than X Number of Days in Linux How to keep limited amount of backup files or how to delete backup files or any file t...

How to Block Facebook, Twitter and YouTube HTTPS Traffic In Squid Transparent Proxy Mode

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<span style="color: red; font-family: verdana, geneva, sans-serif; font-size: large;"><span style="line-height: 26px;"><b><u>Block Facebook, Twitter and YouTube’s HTTPS Traffic In Squid Transparent Proxy Mode</u></b></span></span><br />
<span style="color: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">After setting up <a href="http://www.hackthesec.co.in/2016/05/how-to-configure-squid-3x-as.html" target="_blank">Squid As Transparent Proxy Mode</a>, most of the system admins try to block famous social media websites such as Facebook, Twitter and YouTube in their network.So in this guide we will learn how to Block HTTPS Traffic while Squid is running as Transparent Proxy.</span></span><br />
<a href="http://www.hackthesec.co.in/2016/05/how-to-configure-squid-3x-as.html" itemprop="url" style="background-color: white; display: block; font-family: 'Open Sans', serif, sans-serif; font-size: 18.6px; font-weight: 600; text-decoration: none;"></a><br />
<ul style="text-align: left;">
<li><a href="http://www.hackthesec.co.in/2016/05/how-to-configure-squid-3x-as.html" itemprop="url" style="display: inline !important; font-size: 18.6px; text-decoration: none;"><span style="color: red;">How to Configure Squid 3.x as Transparent Proxy on CentOS 7 / RHEL 7</span></a></li>
</ul>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiu5EEcgs1XrKXPdiyB1Q9PXqvHPrQfndedFITprHVBeAFc0Ob0eu6tPF6Q9cnbSsn_9PcqWs-TgRQ5VdO5HmWfRMMgzhp8Niz6GEiKzSFt5fc76UHNuThqmUgiwW1P1-451tDcx7pK59RW/s1600/access-blocked-websites-hackthesec.co.in.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiu5EEcgs1XrKXPdiyB1Q9PXqvHPrQfndedFITprHVBeAFc0Ob0eu6tPF6Q9cnbSsn_9PcqWs-TgRQ5VdO5HmWfRMMgzhp8Niz6GEiKzSFt5fc76UHNuThqmUgiwW1P1-451tDcx7pK59RW/s1600/access-blocked-websites-hackthesec.co.in.png" /></a></div>
<span style="color: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><br /></span></span>
<span style="color: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">We understand now that 443 port traffic is passing through iptables firewall. So with the help of iptables string matching feature we will see how to block Facebook, Twitter and YouTube HTTPS traffic.</span></span><br />
<span style="color: #0b5394; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><b><u>Iptables Rule to Block Facebook in Squid Transparent Proxy Setup</u></b></span></span><br />
<pre style="background: rgb(54, 54, 54); border-radius: 7px; border: 1px solid rgb(221, 221, 221); font-stretch: inherit; margin-bottom: 15px; margin-top: 15px; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline;"><span style="color: white; font-family: Monaco, Courier New, DejaVu Sans Mono, Bitstream Vera Sans Mono, monospace; font-size: medium;"><span style="line-height: 19px; white-space: pre-wrap;">iptables -I FORWARD -p tcp --dport 80 -m string --string 'facebook.com' --algo bm --to 65535 -j DROP</span></span></pre>
<pre style="background: rgb(54, 54, 54); border-radius: 7px; border: 1px solid rgb(221, 221, 221); font-stretch: inherit; margin-bottom: 15px; margin-top: 15px; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline;"><span style="color: white; font-family: Monaco, Courier New, DejaVu Sans Mono, Bitstream Vera Sans Mono, monospace; font-size: medium;"><span style="line-height: 19px; white-space: pre-wrap;">
iptables -I FORWARD -p tcp --dport 443 -m string --string 'facebook.com' --algo bm --to 65535 -j DROP</span></span></pre>
<span style="color: #0b5394; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><b><u>Iptables Rule to Block Twitter in Squid Transparent Proxy Setup</u></b></span></span><br />
<pre style="background: rgb(54, 54, 54); border-radius: 7px; border: 1px solid rgb(221, 221, 221); font-stretch: inherit; margin-bottom: 15px; margin-top: 15px; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline;"><span style="color: white; font-family: Monaco, Courier New, DejaVu Sans Mono, Bitstream Vera Sans Mono, monospace; font-size: medium;"><span style="line-height: 19px; white-space: pre-wrap;">iptables -I FORWARD -p tcp --dport 80 -m string --string 'twitter.com' --algo bm --to 65535 -j DROP</span></span></pre>
<pre style="background: rgb(54, 54, 54); border-radius: 7px; border: 1px solid rgb(221, 221, 221); font-stretch: inherit; margin-bottom: 15px; margin-top: 15px; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline;"><span style="color: white; font-family: Monaco, Courier New, DejaVu Sans Mono, Bitstream Vera Sans Mono, monospace; font-size: medium;"><span style="line-height: 19px; white-space: pre-wrap;">
iptables -I FORWARD -p tcp --dport 443 -m string --string 'twitter.com' --algo bm --to 65535 -j DROP</span></span></pre>
<span style="color: #0b5394; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><b><u>Iptables Rule to Block YouTube in Squid Transparent Proxy Setup</u></b></span></span><br />
<pre style="background: rgb(54, 54, 54); border-radius: 7px; border: 1px solid rgb(221, 221, 221); font-stretch: inherit; margin-bottom: 15px; margin-top: 15px; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline;"><span style="color: white; font-family: Monaco, Courier New, DejaVu Sans Mono, Bitstream Vera Sans Mono, monospace; font-size: medium;"><span style="line-height: 19px; white-space: pre-wrap;">iptables -I FORWARD -p tcp --dport 80 -m string --string 'youtube.com' --algo bm --to 65535 -j DROP</span></span></pre>
<pre style="background: rgb(54, 54, 54); border-radius: 7px; border: 1px solid rgb(221, 221, 221); font-stretch: inherit; margin-bottom: 15px; margin-top: 15px; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline;"><span style="color: white; font-family: Monaco, Courier New, DejaVu Sans Mono, Bitstream Vera Sans Mono, monospace; font-size: medium;"><span style="line-height: 19px; white-space: pre-wrap;">
iptables -I FORWARD -p tcp --dport 443 -m string --string 'youtube.com' --algo bm --to 65535 -j DROP</span></span></pre>
<span style="color: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">Above rules will block entire traffic destine to 443 port but you can apply same rule on particular single ip, range of ips or complete network.</span></span><br />
<span style="color: #0b5394; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><b><u>To Apply Same Rule on Single IP Address</u></b></span></span><br />
<pre style="background: rgb(54, 54, 54); border-radius: 7px; border: 1px solid rgb(221, 221, 221); font-stretch: inherit; margin-bottom: 15px; margin-top: 15px; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline;"><span style="color: white; font-family: Monaco, Courier New, DejaVu Sans Mono, Bitstream Vera Sans Mono, monospace; font-size: medium;"><span style="line-height: 19px; white-space: pre-wrap;">iptables -I FORWARD -p tcp --dport 443 -s 192.168.2.10 -m string --string 'youtube.com' --algo bm --to 65535 -j DROP</span></span></pre>
<span style="color: #0b5394; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><b><u>To Apply Same Rule on Range of IP Addresses</u></b></span></span><br />
<pre style="background: rgb(54, 54, 54); border-radius: 7px; border: 1px solid rgb(221, 221, 221); font-stretch: inherit; margin-bottom: 15px; margin-top: 15px; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline;"><span style="color: white; font-family: Monaco, Courier New, DejaVu Sans Mono, Bitstream Vera Sans Mono, monospace; font-size: medium;"><span style="line-height: 19px; white-space: pre-wrap;">iptables -I FORWARD -p tcp --dport 443 -m iprange --src-range 192.168.2.11-192.168.2.15 -m string --string 'youtube.com' --algo bm --to 65535 -j DROP</span></span></pre>
<span style="color: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">Above rule will block YouTube.com only specified ips from 11 to 15 other all range is allowed.</span></span><br />
<span style="color: #0b5394; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><b><u>To Apply Same Rule on Whole Subnet of 192.168.2.0/24</u></b></span></span><br />
<pre style="background: rgb(54, 54, 54); border-radius: 7px; border: 1px solid rgb(221, 221, 221); font-stretch: inherit; margin-bottom: 15px; margin-top: 15px; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline;"><span style="color: white; font-family: Monaco, Courier New, DejaVu Sans Mono, Bitstream Vera Sans Mono, monospace; font-size: medium;"><span style="line-height: 19px; white-space: pre-wrap;">iptables -I FORWARD -p tcp --dport 443 -s 192.168.2.0/24 -m string --string 'youtube.com' --algo bm --to 65535 -j DROP</span></span></pre>
<pre style="background: rgb(54, 54, 54); border-radius: 7px; border: 1px solid rgb(221, 221, 221); font-stretch: inherit; margin-bottom: 15px; margin-top: 15px; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline;"><span style="color: white; font-family: Monaco, Courier New, DejaVu Sans Mono, Bitstream Vera Sans Mono, monospace; font-size: medium;"><span style="line-height: 19px; white-space: pre-wrap;"><a href="http://www.hackthesec.co.in/">www.hackthesec.co.in</a></span></span></pre>
</div>

How to Block Facebook, Twitter and YouTube HTTPS Traffic In Squid Transparent Proxy Mode

Block Facebook, Twitter and YouTube’s HTTPS Traffic In Squid Transparent Proxy Mode After setting up Squid As Transparent Proxy Mode , mos...

How to Configure Squid 3.x as Transparent Proxy on CentOS 7 / RHEL 7

<div dir="ltr" style="text-align: left;" trbidi="on">
<h2 class="post-heading" style="background-color: white; border: 0px; font-family: sans-serif; font-size: 24px; line-height: 30px; margin: 30px 0px 15px; opacity: 1; outline: 0px; padding: 0px; transition: opacity 0.24s ease-in-out; vertical-align: baseline; visibility: visible;">
<span style="color: red;">Configure Squid 3.x as Transparent Proxy on CentOS 7 / RHEL 7</span></h2>
<div>
<span style="color: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">There are several benefits of using a transparent proxy. First of all, for end users, a transparent proxy can enhance their web browsing performance by caching frequently accessed web content, while introducing minimal configuration overhead for them. For administrators, it can be used to enforce various administrative policies such as content/URL/IP filtering, rate limiting, etc.</span></span></div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj1VrRyKPmaAN8_k1ni3Alq0RVqEPZim4tvw83TXom35GD6ZGJrboNOHhJ97rT251n4G6I7iWctMMqdO5wN9jm5mrF3yErWGe65h2lNz-DioH6G_eOWTR2IFdWRyI2pi9EiwY8B7F-8CN0J/s1600/squid-installation-hackthesec.co.in.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj1VrRyKPmaAN8_k1ni3Alq0RVqEPZim4tvw83TXom35GD6ZGJrboNOHhJ97rT251n4G6I7iWctMMqdO5wN9jm5mrF3yErWGe65h2lNz-DioH6G_eOWTR2IFdWRyI2pi9EiwY8B7F-8CN0J/s1600/squid-installation-hackthesec.co.in.jpg" /></a></div>
<div>
<span style="color: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><br /></span></span></div>
<div>
<span style="color: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">A proxy server acts as an intermediary between a client and a destination server. The client sends requests to the proxy server which then evaluates the requests and takes necessary actions. In this tutorial, we will be setting up a web proxy server using Squid, which is a robust, customizable and stable proxy server. Personally, I had administered a Squid server with 400+ client workstations for about a year. Although I had to restart the service about once a month in average, CPU and storage utilization, throughput and client response time were all great.</span></span></div>
<div>
<span style="color: #0b5394; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><b><u>Squid Installation and Configuration</u></b></span></span></div>
<div>
<pre style="background: rgb(54, 54, 54); border-radius: 7px; border: 1px solid rgb(221, 221, 221); font-stretch: inherit; margin-bottom: 15px; margin-top: 15px; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline;"><span style="color: white; font-family: Monaco, Courier New, DejaVu Sans Mono, Bitstream Vera Sans Mono, monospace; font-size: medium;"><span style="line-height: 19px; white-space: pre-wrap;"># yum install squid –y</span></span></pre>
</div>
<div>
<div style="color: #333333; font-family: verdana, geneva, sans-serif; font-size: 15px; line-height: 26px;">
Edit squid configuration file</div>
<div style="color: #333333; font-family: verdana, geneva, sans-serif; font-size: 15px; line-height: 26px;">
Before you edit default configuration file it is highly recommended to keep backup.</div>
<div>
<pre style="background-attachment: initial; background-clip: initial; background-color: #363636; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 7px; border: 1px solid rgb(221, 221, 221); font-stretch: inherit; margin-bottom: 15px; margin-top: 15px; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline;"><span style="color: white; font-family: Monaco, Courier New, DejaVu Sans Mono, Bitstream Vera Sans Mono, monospace; font-size: medium;"><span style="line-height: 19px; white-space: pre-wrap;"># cp /etc/squid/squid.conf /etc/squid/squid.conf.bk-26-05-2016</span></span></pre>
</div>
</div>
<div>
<span style="color: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">Open configuration file and add below mentioned parameters</span></span></div>
<div>
<pre style="background: rgb(54, 54, 54); border-radius: 7px; border: 1px solid rgb(221, 221, 221); font-stretch: inherit; margin-bottom: 15px; margin-top: 15px; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline;"><span style="color: white; font-family: Monaco, Courier New, DejaVu Sans Mono, Bitstream Vera Sans Mono, monospace; font-size: medium;"><span style="line-height: 19px; white-space: pre-wrap;"># vi /etc/squid/squid.conf</span></span></pre>
</div>
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<span style="color: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">Add transparent proxy setting and add and allow our network</span></span></div>
<div>
<pre style="background: rgb(54, 54, 54); border-radius: 7px; border: 1px solid rgb(221, 221, 221); font-stretch: inherit; margin-bottom: 15px; margin-top: 15px; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline;"><span style="color: white; font-family: Monaco, Courier New, DejaVu Sans Mono, Bitstream Vera Sans Mono, monospace; font-size: medium;"><span style="line-height: 19px; white-space: pre-wrap;"># vi /etc/squid/squid.conf</span></span></pre>
<pre style="background: rgb(54, 54, 54); border-radius: 7px; border: 1px solid rgb(221, 221, 221); font-stretch: inherit; margin-bottom: 15px; margin-top: 15px; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline;"><span style="color: white; font-family: Monaco, Courier New, DejaVu Sans Mono, Bitstream Vera Sans Mono, monospace; font-size: medium;"><span style="line-height: 19px; white-space: pre-wrap;"># Allow LAN Network
acl our_network src 192.168.2.0/24

# Allow Network ACL Allow/Deny Section#
http_access allow our_network

# Transparent Proxy Parameters
http_port 3128 intercept

visible_hostname pxy.hackthesec.co.in</span></span></pre>
</div>
<div>
<div style="color: #333333; font-family: verdana, geneva, sans-serif; font-size: 15px; line-height: 26px;">
Save & Exit</div>
<div style="color: #333333; font-family: verdana, geneva, sans-serif; font-size: 15px; line-height: 26px;">
Now start squid service and make sure it is added on startup.</div>
<div>
<pre style="background-attachment: initial; background-clip: initial; background-color: #363636; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 7px; border: 1px solid rgb(221, 221, 221); font-stretch: inherit; margin-bottom: 15px; margin-top: 15px; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline;"><span style="color: white; font-family: Monaco, Courier New, DejaVu Sans Mono, Bitstream Vera Sans Mono, monospace; font-size: medium;"><span style="line-height: 19px; white-space: pre-wrap;"># systemctl start squid
# systemctl enable squid</span></span></pre>
</div>
</div>
<div>
<span style="color: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">Add necessary iptables rules to setup squid as transparent proxy.</span></span></div>
<div>
<pre style="background-attachment: initial; background-clip: initial; background-color: #363636; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 7px; border: 1px solid rgb(221, 221, 221); font-stretch: inherit; margin-bottom: 15px; margin-top: 15px; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline;"><span style="color: white; font-family: Monaco, Courier New, DejaVu Sans Mono, Bitstream Vera Sans Mono, monospace; font-size: medium;"><span style="line-height: 19px; white-space: pre-wrap;">ptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j DNAT --to 192.168.2.100:3128
iptables -t nat -A PREROUTING -i eth1 -p tcp --dport 80 -j REDIRECT --to-port 3128
iptables --t nat -A POSTROUTING --out-interface eth1 -j MASQUERADE</span></span></pre>
</div>
<div>
<span style="color: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">Now you can save your iptable rules by following command:</span></span></div>
<div>
<pre style="background-attachment: initial; background-clip: initial; background-color: #363636; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 7px; border: 1px solid rgb(221, 221, 221); font-stretch: inherit; margin-bottom: 15px; margin-top: 15px; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline;"><span style="color: white; font-family: Monaco, Courier New, DejaVu Sans Mono, Bitstream Vera Sans Mono, monospace; font-size: medium;"><span style="line-height: 19px; white-space: pre-wrap;">service iptables save</span></span></pre>
</div>
<div>
<span style="color: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">That’s It, Now squid should work smoothly in transparent proxy mode.</span></span></div>
<div>
<span style="color: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><br /></span></span></div>
<div>
<span style="color: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><a href="http://www.hackthesec.co.in/">www.hackthesec.co.in</a></span></span></div>
</div>

How to Configure Squid 3.x as Transparent Proxy on CentOS 7 / RHEL 7

Configure Squid 3.x as Transparent Proxy on CentOS 7 / RHEL 7 There are several benefits of using a transparent proxy. First of all, for...

How to Create a Bootable Ubuntu 16.04 USB Flash Drive

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<h2 class="title single-title title20" style="background-color: white; border: 0px; font-family: 'Open Sans'; font-size: 24px; line-height: 30px; margin: 0px 0px 5px; opacity: 1; outline: 0px; padding: 0px; transition: opacity 0.24s ease-in-out; vertical-align: baseline; visibility: visible;">
<u><span style="color: red;">Bootable Ubuntu 16.04<span style="border: 0px; font-size: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;">USB </span><span style="border: 0px; font-size: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;">Flash </span><span style="border: 0px; font-size: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;">Drive</span></span></u></h2>
<div>
<span style="color: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">In the first step you need to know your system's type, Either it is 32-bit or 64-bit Architecture. use this command and check your System Type.</span></span></div>
<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjzOsa5yIU31WVpfc4MLAQFC3UymfiP42Bo_pqKKfJXl6PoHhJ3xZRB9T7GLKSX53Mb1Ylb3kJskPFRHFaql7sp22A0mJDLPvyxX7_bJu3tsIMHpwvL159m9s0MTDTCU8h8wW45p0vf4TOz/s1600/flash_drive_hackthesec.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjzOsa5yIU31WVpfc4MLAQFC3UymfiP42Bo_pqKKfJXl6PoHhJ3xZRB9T7GLKSX53Mb1Ylb3kJskPFRHFaql7sp22A0mJDLPvyxX7_bJu3tsIMHpwvL159m9s0MTDTCU8h8wW45p0vf4TOz/s1600/flash_drive_hackthesec.jpg" /></a></div>
<div>
<span style="color: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><br /></span></span></div>
<div>
<span style="font-family: verdana, geneva, sans-serif;"><div style="font-size: 15px; line-height: 26px;">
<u><b><span style="color: #0b5394;">Download Ubuntu 16.04 ISO File</span></b></u></div>
<div style="color: #333333; font-size: 15px; line-height: 26px;">
As you can see in the above step my computer is 64-bit so i will Download Ubuntu 16.04 64-bit ISO File</div>
<div style="font-size: 15px; line-height: 26px;">
<a href="http://www.ubuntu.com/download/desktop" target="_blank">Download<span style="color: #333333;">  </span></a><a class="arconix-button arconix-button-medium arconix-button-white" href="http://www.ubuntu.com/download/desktop" style="background-attachment: initial; background-clip: initial; background-color: white; background-image: -webkit-gradient(linear, 0% 0%, 0% 100%, from(rgb(255, 255, 255)), to(rgb(237, 237, 237))); background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 8px; border: 1px solid rgb(183, 183, 183); box-shadow: rgba(255, 255, 255, 0.498039) 0px 1px 0px inset; cursor: pointer; display: inline-block; font-family: Arial, Helvetica, sans-serif; font-size: 12px; font-stretch: normal; line-height: normal; margin-bottom: 10px; outline: none; padding: 6px 24px 7px; text-align: center; text-decoration: none; text-shadow: rgba(0, 0, 0, 0.4) 0px -1px 1px; word-wrap: break-word;" target="_blank"><span style="color: red;">Light Table Installer (.deb)</span></a></div>
<div>
<div>
<span style="font-size: 15px; line-height: 26px;"><b><u><span style="color: #0b5394;">Download Universal USB Installer</span></u></b></span></div>
<div>
<span style="color: #333333;"><span style="font-size: 15px; line-height: 26px;">After Ubuntu has finished downloading now we will move on to the next step which is downloading Universal USB Installer</span></span></div>
</div>
<div>
<span style="color: #333333;"><span style="font-size: 15px; line-height: 26px;"><a href="http://www.pendrivelinux.com/universal-usb-installer-easy-as-1-2-3/">Universal USB Installer</a> (Linux to USB Utility)</span></span></div>
<div>
<span style="color: #333333;"><span style="font-size: 15px; line-height: 26px;">Open Universal USB Installer & Follow the Screenshot instructions</span></span></div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjnTcLE3HERSuhWa0bm4nmCaCMp1j6LsHgJft5b97PwPPAWzFVOUmDOXCqBpZaI8FGsgHXQPj1L1upJHaeYvn8oNNgyMROOig_1Jy7O8-eyfqxKU2W88h67DATWiLksriylq4wiYqspAqo9/s1600/selection_hackthesec.co.in.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjnTcLE3HERSuhWa0bm4nmCaCMp1j6LsHgJft5b97PwPPAWzFVOUmDOXCqBpZaI8FGsgHXQPj1L1upJHaeYvn8oNNgyMROOig_1Jy7O8-eyfqxKU2W88h67DATWiLksriylq4wiYqspAqo9/s1600/selection_hackthesec.co.in.jpg" /></a></div>
<div>
<span style="color: #333333;"><span style="font-size: 15px; line-height: 26px;">Wait Until the File copy and format process completed after this process you are ready to GO !!</span></span></div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiFsCizSWYLykEm_re31CDPUeEhGe8FV2L66LuJANsPFerg1lWWlWWsGRCZNpZv-YerjPQwSHSFFAz1HmSO3qKEaeJzENgznNFpr9w_8XVGbLO7N9CxZlXMzNwyCHN-Vy4_b7CCjGQEjn3v/s1600/installation_hackthesec.co.in.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiFsCizSWYLykEm_re31CDPUeEhGe8FV2L66LuJANsPFerg1lWWlWWsGRCZNpZv-YerjPQwSHSFFAz1HmSO3qKEaeJzENgznNFpr9w_8XVGbLO7N9CxZlXMzNwyCHN-Vy4_b7CCjGQEjn3v/s1600/installation_hackthesec.co.in.jpg" /></a></div>
<div>
<span style="color: #333333;"><span style="font-size: 15px; line-height: 26px;">Process has been completed success you are now ready to launch <a href="http://www.hackthesec.co.in/search/label/Ubuntu" target="_blank">Ubuntu </a>from your</span></span></div>
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<a href="http://www.hackthesec.co.in/">www.hackthesec.co.in</a></div>
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How to Create a Bootable Ubuntu 16.04 USB Flash Drive

Bootable Ubuntu 16.04 USB Flash Drive In the first step you need to know your system's type, Either it is 32-bit or 64-bit Archite...

How to Install Light Table IDE in Ubuntu 16.04 via PPA

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<h1 class="post-title entry-title" style="background-color: white; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; line-height: 1.2; margin: 0px 0px 5px; text-rendering: optimizeLegibility; word-wrap: break-word;">
<span style="color: red; font-size: large;"><u>Install Light Table IDE in Ubuntu 16.04 via PPA</u></span></h1>
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<span style="color: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">Light Table is an integrated development environment for software engineering developed by Chris Granger and Robert Attorri. It features real-time feedback allowing instant execution, debugging and access to documentation. The instant feedback provides an unusual execution environment intended to help developing abstractions.</span></span></div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgVMVNkOcvstWK5VM62q1yibA3I93Av1RqrI7nHe8KE33WP3vUtuW7qZFpjT31x1798ouLN8yiQRfrm3azLufEZYeEt6XHzBVJ0bl2OKw_zL39Gxh0vD58H1RooHrc2FOUtLXvhu1WwUbea/s1600/LightTable-unity-launcher_hackthesec.co.in.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgVMVNkOcvstWK5VM62q1yibA3I93Av1RqrI7nHe8KE33WP3vUtuW7qZFpjT31x1798ouLN8yiQRfrm3azLufEZYeEt6XHzBVJ0bl2OKw_zL39Gxh0vD58H1RooHrc2FOUtLXvhu1WwUbea/s1600/LightTable-unity-launcher_hackthesec.co.in.jpg" /></a></div>
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<span style="color: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><br /></span></span></div>
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<span style="color: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">The development team attempted to create a program which shows the programmer what the effects of their additions are in real-time, rather than requiring them to work out the effects as they write the code.Though the program began by only supporting Clojure, it has since aimed to support Python and JavaScript due to their popularity. The developers claim that the software can reduce programming time by up to 20%.</span></span></div>
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<span style="color: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><br /></span></span></div>
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<span style="font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><div style="color: #333333;">
To make it easy to install Light Table IDE in Ubuntu, there’s now a PPA that contains an installer script, which automatically downloads the official Linux package from <a href="http://www.lighttable.com/">its website</a>, installs and creates a launcher shortcut in your system for better Ubuntu integration.</div>
<div style="color: #333333;">
First download the script from the link:<a class="arconix-button arconix-button-medium arconix-button-white" href="http://ppa.launchpad.net/dr-akulavich/lighttable/ubuntu/pool/main/l/lighttable-installer/" style="background-attachment: initial; background-clip: initial; background-color: white; background-image: -webkit-gradient(linear, 0% 0%, 0% 100%, from(rgb(255, 255, 255)), to(rgb(237, 237, 237))); background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 8px; border: 1px solid rgb(183, 183, 183); box-shadow: rgba(255, 255, 255, 0.498039) 0px 1px 0px inset; cursor: pointer; display: inline-block; font-family: Arial, Helvetica, sans-serif; font-size: 12px; font-stretch: normal; line-height: normal; margin-bottom: 10px; outline: none; padding: 6px 24px 7px; text-align: center; text-decoration: none; text-shadow: rgba(0, 0, 0, 0.4) 0px -1px 1px; word-wrap: break-word;" target="_blank">Light Table Installer (.deb)</a></div>
</span></span></div>
<div>
<span style="background-color: white;"><div style="color: #333333; font-family: verdana, geneva, sans-serif; font-size: 15px; line-height: 26px;">
Select download the package "lighttable-installer_xxx_amd64.deb", the click install via Ubuntu Software.</div>
<div style="color: #333333; font-family: verdana, geneva, sans-serif; font-size: 15px; line-height: 26px;">
<br /></div>
<div style="color: #333333; font-family: verdana, geneva, sans-serif; font-size: 15px; line-height: 26px;">
Or open terminal (Ctrl+Alt+T) and run command install the downloaded package. The script starts automatically after installation:</div>
<div>
<pre style="background-attachment: initial; background-clip: initial; background-color: #363636; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 7px; border: 1px solid rgb(221, 221, 221); font-stretch: inherit; margin-bottom: 15px; margin-top: 15px; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline;"><span style="color: white; font-family: Monaco, Courier New, DejaVu Sans Mono, Bitstream Vera Sans Mono, monospace; font-size: medium;"><span style="line-height: 19px; white-space: pre-wrap;">sudo dpkg -i ~/Downloads/lighttable-installer_*.deb</span></span></pre>
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</span></div>
<div>
<span style="background-color: white; font-size: 15px; line-height: 26px;"><span style="color: #333333; font-family: verdana, geneva, sans-serif;"><div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgmDuivbTlQSVQbo5ij17wY4yDZbO2_UYIU-kfi1eS9eSyyGZpRYvzBlPZ9z8CsZh1R5VWEoZ18EVyOkzFUJOt1hnVRAZ0Z5b9k7NjJrvK5emPPwkeHdLIDcT9nJey-ID3bHv-qORoapVdJ/s1600/light-table-installer_hackthesec.co.in.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgmDuivbTlQSVQbo5ij17wY4yDZbO2_UYIU-kfi1eS9eSyyGZpRYvzBlPZ9z8CsZh1R5VWEoZ18EVyOkzFUJOt1hnVRAZ0Z5b9k7NjJrvK5emPPwkeHdLIDcT9nJey-ID3bHv-qORoapVdJ/s1600/light-table-installer_hackthesec.co.in.jpg" /></a></div>
<div>
If everything goes OK, you’ll be finally able to launch the IDE from Unity Dash, or other Application Launcher.</div>
<div>
<br /></div>
<div>
(Optional) To receive future updates of Light Table along with other system updates, you may add the PPA repository so to get updates via Software Updater once a new release is made into PPA.</div>
</span></span></div>
<div>
<pre style="background-attachment: initial; background-clip: initial; background-color: #363636; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 7px; border: 1px solid rgb(221, 221, 221); font-stretch: inherit; margin-bottom: 15px; margin-top: 15px; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline;"><span style="color: white; font-family: Monaco, Courier New, DejaVu Sans Mono, Bitstream Vera Sans Mono, monospace; font-size: medium;"><span style="line-height: 19px; white-space: pre-wrap;">sudo add-apt-repository ppa:dr-akulavich/lighttable</span></span><span style="color: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px; white-space: normal;">
</span></span></pre>
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<div>
<span style="color: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">You can then disable, remove, or edit the PPA via System Settings -> System -> Software & Updates -> Other Software.</span></span></div>
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<span style="color: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><br /></span></span></div>
<div>
<span style="color: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><a href="http://www.hackthesec.co.in/">www.hackthesec.co.in</a></span></span></div>
</div>

How to Install Light Table IDE in Ubuntu 16.04 via PPA

Install Light Table IDE in Ubuntu 16.04 via PPA Light Table is an integrated development environment for software engineering developed...

How to Install KDE Plasma 5.6 in KUbuntu 16.04 via PPA

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<span style="color: red; font-family: verdana, geneva, sans-serif; font-size: large;"><span style="line-height: 26px;"><u>Install KDE Plasma 5.6 in KUbuntu 16.04 via PPA</u></span></span><br />
<div>
<span style="background-color: white; font-size: 15px; line-height: 26px;"><span style="color: #333333; font-family: verdana, geneva, sans-serif;"><div>
The Plasma Desktop 5.6 was finally made into <a href="https://launchpad.net/~kubuntu-ppa/+archive/ubuntu/backports">Kubuntu Backports PPA</a>, two months after its release date, available for upgrade in KUbuntu 16.04 LTS.</div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEihwPFTD6NtaBnxxsQyNLacRrxDd_JrAtONLo4Lerby5bap51YPH3kByWAVA3KMIzGf1ja__O0B3j3Yr7YNxGgzDzusOhMpl1CfL9bpmuP8eD5bs19mDyhHV5ZnJ7Rmx6J4TjAMYiovAyRq/s1600/kubuntu_logo_hackthesec.co.in.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEihwPFTD6NtaBnxxsQyNLacRrxDd_JrAtONLo4Lerby5bap51YPH3kByWAVA3KMIzGf1ja__O0B3j3Yr7YNxGgzDzusOhMpl1CfL9bpmuP8eD5bs19mDyhHV5ZnJ7Rmx6J4TjAMYiovAyRq/s1600/kubuntu_logo_hackthesec.co.in.png" /></a></div>
<div>
While Ubuntu 16.04 comes with Plasma 5.5, you can now upgrade to the latest Plasma 5.6.4 by following the steps blew one by one.</div>
</span></span></div>
<div class="separator" style="clear: both; text-align: center;">
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<span style="background-color: white; color: #333333; font-family: verdana, geneva, sans-serif; font-size: 12px; line-height: 19.2px;"><span style="font-size: 15px; line-height: 26px;"><br /></span></span></div>
<div>
<span style="background-color: white;"><div style="color: #333333; font-family: verdana, geneva, sans-serif; font-size: 15px; line-height: 26px;">
Add Kubuntu Backports PPA.</div>
<div style="color: #333333; font-family: verdana, geneva, sans-serif; font-size: 15px; line-height: 26px;">
If you have not yet added the PPA, open terminal emulator, paste the command below and hit run:</div>
<div>
<pre style="background-attachment: scroll; background-clip: initial; background-color: #3c3c3c; background-image: none; background-origin: initial; background-position: 0px 0px; background-repeat: repeat; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 4px; border: 1px solid rgb(229, 229, 229); margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: white; font-family: Courier New, Courier, monospace; font-size: medium;"><span style="line-height: 16.9px;">sudo add-apt-repository ppa:kubuntu-ppa/backports</span></span></pre>
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</span></div>
<div>
<span style="background-color: white;"><div style="color: #333333; font-family: verdana, geneva, sans-serif; font-size: 15px; line-height: 26px;">
Then update your whole system via your update-manager.</div>
<div style="color: #333333; font-family: verdana, geneva, sans-serif; font-size: 15px; line-height: 26px;">
Or run the commands below one by one in terminal:</div>
<div>
<pre style="background-attachment: scroll; background-clip: initial; background-color: #3c3c3c; background-image: none; background-origin: initial; background-position: 0px 0px; background-repeat: repeat; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 4px; border: 1px solid rgb(229, 229, 229); margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: white; font-family: Courier New, Courier, monospace; font-size: medium;"><span style="line-height: 16.9px;">sudo apt update
sudo apt full-upgrade</span></span></pre>
</div>
</span></div>
<div>
<span style="color: red;"><b><span style="background-color: white; font-family: verdana, geneva, sans-serif; font-size: 12px; line-height: 19.2px;"><span style="font-size: 15px; line-height: 26px;">Note : </span></span><span style="font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">To revert the changes, purge the Kubuntu Backports PPA via ppa-purge which also downgrade Plasma Desktop to the stock version in Ubuntu 16.04.</span></span></b></span></div>
<div>
<pre style="background-attachment: scroll; background-clip: initial; background-color: #3c3c3c; background-image: none; background-origin: initial; background-position: 0px 0px; background-repeat: repeat; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 4px; border: 1px solid rgb(229, 229, 229); margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: white; font-family: Courier New, Courier, monospace; font-size: medium;"><span style="line-height: 16.9px;">sudo apt install ppa-purge && sudo ppa-purge ppa:kubuntu-ppa/backports</span></span></pre>
<pre style="background-attachment: scroll; background-clip: initial; background-color: #3c3c3c; background-image: none; background-origin: initial; background-position: 0px 0px; background-repeat: repeat; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 4px; border: 1px solid rgb(229, 229, 229); margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: white; font-family: Courier New, Courier, monospace; font-size: medium;"><span style="line-height: 16.9px;">www.hackthesec.co.in</span></span></pre>
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How to Install KDE Plasma 5.6 in KUbuntu 16.04 via PPA

Install KDE Plasma 5.6 in KUbuntu 16.04 via PPA The Plasma Desktop 5.6 was finally made into Kubuntu Backports PPA , two months after it...

How to Install Eclipse IDE on Ubuntu Linux 14.04

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<h1 class="entry-title" itemprop="headline" style="background-color: white; border: 0px; clear: both; font-family: 'Trebuchet MS', Helvetica, sans-serif, sans-serif; line-height: 1.2em; margin: 0px; outline: 0px; padding: 0px;">
<span style="color: red; font-size: x-large;"><u>Install Eclipse IDE on Ubuntu Linux 14.04</u></span></h1>
<div>
<span style="color: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">Eclipse is an integrated development environment (IDE) used in computer programming. It contains a base workspace and an extensible plug-in system for customizing the environment. Eclipse is written mostly in Java and its primary use is for developing <a href="http://www.hackthesec.co.in/search/label/Java">Java applications</a>, but it may also be used to develop applications in other programming languages through the use of plugins, </span></span></div>
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<div>
<span style="color: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><br /></span></span></div>
<div>
<span style="color: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">including: Ada, ABAP, C, C++, COBOL, Fortran, Haskell, JavaScript, Julia,Lasso, Lua, NATURAL, Perl, PHP, Prolog, Python, R, Ruby (including Ruby on Rails framework), Rust, Scala, Clojure, Groovy, Scheme, and Erlang. It can also be used to develop packages for the software Mathematica. Development environments include the Eclipse Java development tools (JDT) for Java and Scala, Eclipse CDT for C/C++ and Eclipse PDT for PHP, among others.</span></span><span style="background-color: white; color: #333333; font-family: verdana, geneva, sans-serif; font-size: 15px; line-height: 26px;"> </span></div>
<div>
<ul style="text-align: left;">
<li><a href="http://www.hackthesec.co.in/2016/05/how-to-install-eclipse-ide-on-ubuntu-15.html" style="background-color: white; font-family: verdana, geneva, sans-serif; font-size: x-large; line-height: 26px;"><span style="color: red;">How to Install Eclipse IDE on Ubuntu Linux 15.04</span></a></li>
</ul>
</div>
<div>
<span style="background-color: white; font-size: 15px; line-height: 26px;"><span style="color: #333333; font-family: verdana, geneva, sans-serif;">Eclipse needs java as pre-requisite , run following command to install java on your ubuntu 14.04 system.</span></span></div>
<div>
<pre style="background: rgb(54, 54, 54); border-radius: 7px; border: 1px solid rgb(221, 221, 221); font-stretch: inherit; margin-bottom: 15px; margin-top: 15px; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline;"><span style="color: white; font-family: Monaco, Courier New, DejaVu Sans Mono, Bitstream Vera Sans Mono, monospace; font-size: medium;"><span style="line-height: 19px; white-space: pre-wrap;">sudo apt-get install openjdk-7-jdk</span></span></pre>
</div>
<div>
<span style="background-color: white;"><div style="color: #333333; font-family: verdana, geneva, sans-serif; font-size: 15px; line-height: 26px;">
once the java installation is complete, <a href="http://www.eclipse.org/downloads/?osType=linux">download Eclipse</a> according to your operating system architecture,<b> i.e. 32 bit or 64 bit.</b></div>
<div style="color: #333333; font-family: verdana, geneva, sans-serif;">
<b style="font-size: 15px; line-height: 26px;">Download Eclipse - </b><span style="font-size: 15px; line-height: 26px;"><b><a href="http://www.eclipse.org/downloads/?osType=linux">http://www.eclipse.org/downloads/?osType=linux</a></b></span></div>
<div style="color: #333333; font-family: verdana, geneva, sans-serif;">
<span style="font-size: 15px; line-height: 26px;"><br /></span></div>
<div style="color: #333333; font-family: verdana, geneva, sans-serif; font-size: 15px; line-height: 26px;">
Once the download is complete, move the eclipse downloaded installer to /opt.</div>
<div>
<pre style="background-attachment: initial; background-clip: initial; background-color: #363636; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 7px; border: 1px solid rgb(221, 221, 221); font-stretch: inherit; margin-bottom: 15px; margin-top: 15px; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline;"><span style="color: white; font-family: Monaco, Courier New, DejaVu Sans Mono, Bitstream Vera Sans Mono, monospace; font-size: medium;"><span style="line-height: 19px; white-space: pre-wrap;">sudo mv eclipse-java-luna-SR2-linux-gtk.tar.gz /opt</span></span></pre>
</div>
</span></div>
<div>
<span style="background-color: white; font-size: 15px; line-height: 26px;"><span style="color: #333333; font-family: verdana, geneva, sans-serif;">Now go into opt partition of your system and extract the eclipse installer</span></span></div>
<div>
<pre style="background-attachment: initial; background-clip: initial; background-color: #363636; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 7px; border: 1px solid rgb(221, 221, 221); font-stretch: inherit; margin-bottom: 15px; margin-top: 15px; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline;"><span style="color: white; font-family: Monaco, Courier New, DejaVu Sans Mono, Bitstream Vera Sans Mono, monospace; font-size: medium;"><span style="line-height: 19px; white-space: pre-wrap;">cd /opt
tar –xvf eclipse-java-luna-SR2-linux-gtk.tar.gz</span></span></pre>
</div>
<div>
<span style="background-color: white; font-size: 15px; line-height: 26px;"><span style="font-family: verdana, geneva, sans-serif;"><span style="color: #333333;">Create a launcher shortcut for Eclipse, create a desktop file, named </span><b><span style="color: red;">eclipse.desktop</span></b><span style="color: #333333;"> in </span><b><span style="color: red;">/usr/share/applications/</span></b><span style="color: #333333;"> by running the following Gedit command.</span></span></span></div>
<div>
<pre style="background-attachment: initial; background-clip: initial; background-color: #363636; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 7px; border: 1px solid rgb(221, 221, 221); font-stretch: inherit; margin-bottom: 15px; margin-top: 15px; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline;"><span style="color: white; font-family: Monaco, Courier New, DejaVu Sans Mono, Bitstream Vera Sans Mono, monospace; font-size: medium;"><span style="line-height: 19px; white-space: pre-wrap;">sudo gedit /usr/share/applications/eclipse.desktop</span></span></pre>
</div>
<div>
<span style="background-color: white; font-size: 15px; line-height: 26px;"><span style="color: #333333; font-family: verdana, geneva, sans-serif;">It will launch an empty file, copy and paste the followings content into this empty file, as shown in following screenshot.</span></span></div>
<div>
<pre style="background-color: whitesmoke; border-radius: 4px; border: 1px solid rgb(204, 204, 204); box-sizing: border-box; margin-bottom: 10px; overflow: auto; padding: 9.5px; word-break: break-all; word-wrap: break-word;"><span style="color: #333333; font-family: Menlo, Monaco, Consolas, Courier New, monospace; font-size: large;"><span style="line-height: 25.7143px;">[Desktop Entry]

Name=Eclipse

Type=Application

Exec=/opt/eclipse/eclipse

Terminal=false

Icon=/opt/eclipse/icon.xpm

Comment=Integrated Development Environment

NoDisplay=false

Categories=Development;IDE;

How to Install Eclipse IDE on Ubuntu Linux 14.04

Install Eclipse IDE on Ubuntu Linux 14.04 Eclipse is an integrated development environment (IDE) used in computer programming. It contai...

How to Install Eclipse IDE on Ubuntu Linux 15.04

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<h1 class="entry-title" itemprop="headline" style="background-color: white; border: 0px; clear: both; font-family: 'Trebuchet MS', Helvetica, sans-serif, sans-serif; line-height: 1.2em; margin: 0px; outline: 0px; padding: 0px;">
<span style="color: red; font-size: x-large;"><u>Install Eclipse IDE on Ubuntu Linux 15.04</u></span></h1>
<div>
<span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px; line-height: 26px;">Eclipse is an integrated development environment (IDE) used in computer programming. It contains a base workspace and an extensible plug-in system for customizing the environment. Eclipse is written mostly in Java and its primary use is for developing <a href="http://www.hackthesec.co.in/search/label/Java">Java applications</a>, but it may also be used to develop applications in other programming languages through the use of plugins, </span></span></div>
<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiW7Es7qnLVozc5v0SPvAkDD-4HAjk-g9jeKVzpNz8pySU9KrcFX70Nx_2mymnbQnIkiPgVgbDAMkXyg4q2_zHAnV4SuXIeNi3A8nD4gvUjHCxrys2gc-hQ_aRDhjVt39JM2SrxBhDJmoTV/s1600/install-eclipse-ubuntu-hackthesec.co.in.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiW7Es7qnLVozc5v0SPvAkDD-4HAjk-g9jeKVzpNz8pySU9KrcFX70Nx_2mymnbQnIkiPgVgbDAMkXyg4q2_zHAnV4SuXIeNi3A8nD4gvUjHCxrys2gc-hQ_aRDhjVt39JM2SrxBhDJmoTV/s1600/install-eclipse-ubuntu-hackthesec.co.in.jpg" /></a></div>
<div>
<span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px; line-height: 26px;"><br /></span></span></div>
<div>
<span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px; line-height: 26px;">including: Ada, ABAP, C, C++, COBOL, Fortran, Haskell, JavaScript, Julia,Lasso, Lua, NATURAL, Perl, PHP, Prolog, Python, R, Ruby (including Ruby on Rails framework), Rust, Scala, Clojure, Groovy, Scheme, and Erlang. It can also be used to develop packages for the software Mathematica. Development environments include the Eclipse Java development tools (JDT) for Java and Scala, Eclipse CDT for C/C++ and Eclipse PDT for PHP, among others.</span></span><span style="background-color: white; color: #333333; font-family: "verdana" , "geneva" , sans-serif; font-size: 15px; line-height: 26px;"> </span><br />
<br />
<ul style="text-align: left;">
<li><span style="background-color: white; font-family: verdana, geneva, sans-serif; line-height: 26px;"><a href="http://www.hackthesec.co.in/2016/05/how-to-install-eclipse-ide-on-ubuntu-14.html"><span style="color: red;"><b>How to Install Eclipse IDE on Ubuntu Linux 14.04</b></span></a></span></li>
</ul>
</div>
<div>
<span style="background-color: white; font-size: 15px; line-height: 26px;"><span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;">Eclipse needs java as pre-requisite , run following command to install java on your ubuntu 15.04 system.</span></span></div>
<div>
<pre style="background: rgb(54, 54, 54); border-radius: 7px; border: 1px solid rgb(221, 221, 221); font-stretch: inherit; margin-bottom: 15px; margin-top: 15px; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline;"><span style="color: white; font-family: "monaco" , "courier new" , "dejavu sans mono" , "bitstream vera sans mono" , monospace; font-size: medium;"><span style="line-height: 19px; white-space: pre-wrap;">sudo apt-get install openjdk-7-jdk</span></span></pre>
</div>
<div>
<span style="background-color: white;"></span><br />
<div style="color: #333333; font-family: verdana, geneva, sans-serif; font-size: 15px; line-height: 26px;">
<span style="background-color: white;">once the java installation is complete, <a href="http://www.eclipse.org/downloads/?osType=linux">download Eclipse</a> according to your operating system architecture,<b> i.e. 32 bit or 64 bit.</b></span></div>
<span style="background-color: white;">
<div style="color: #333333; font-family: verdana, geneva, sans-serif;">
<b style="font-size: 15px; line-height: 26px;">Download Eclipse - </b><span style="font-size: 15px; line-height: 26px;"><b><a href="http://www.eclipse.org/downloads/?osType=linux">http://www.eclipse.org/downloads/?osType=linux</a></b></span></div>
<div style="color: #333333; font-family: verdana, geneva, sans-serif;">
<span style="font-size: 15px; line-height: 26px;"><br /></span></div>
<div style="color: #333333; font-family: verdana, geneva, sans-serif; font-size: 15px; line-height: 26px;">
Once the download is complete, move the eclipse downloaded installer to /opt.</div>
<div>
<pre style="background-attachment: initial; background-clip: initial; background-color: #363636; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 7px; border: 1px solid rgb(221, 221, 221); font-stretch: inherit; margin-bottom: 15px; margin-top: 15px; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline;"><span style="color: white; font-family: "monaco" , "courier new" , "dejavu sans mono" , "bitstream vera sans mono" , monospace; font-size: medium;"><span style="line-height: 19px; white-space: pre-wrap;">sudo mv eclipse-java-luna-SR2-linux-gtk.tar.gz /opt</span></span></pre>
</div>
</span></div>
<div>
<span style="background-color: white; font-size: 15px; line-height: 26px;"><span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;">Now go into opt partition of your system and extract the eclipse installer</span></span></div>
<div>
<pre style="background-attachment: initial; background-clip: initial; background-color: #363636; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 7px; border: 1px solid rgb(221, 221, 221); font-stretch: inherit; margin-bottom: 15px; margin-top: 15px; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline;"><span style="color: white; font-family: "monaco" , "courier new" , "dejavu sans mono" , "bitstream vera sans mono" , monospace; font-size: medium;"><span style="line-height: 19px; white-space: pre-wrap;">cd /opt
tar –xvf eclipse-java-luna-SR2-linux-gtk.tar.gz</span></span></pre>
</div>
<div>
<span style="background-color: white; font-size: 15px; line-height: 26px;"><span style="font-family: "verdana" , "geneva" , sans-serif;"><span style="color: #333333;">Create a launcher shortcut for Eclipse, create a desktop file, named </span><b><span style="color: red;">eclipse.desktop</span></b><span style="color: #333333;"> in </span><b><span style="color: red;">/usr/share/applications/</span></b><span style="color: #333333;"> by running the following Gedit command.</span></span></span></div>
<div>
<pre style="background-attachment: initial; background-clip: initial; background-color: #363636; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 7px; border: 1px solid rgb(221, 221, 221); font-stretch: inherit; margin-bottom: 15px; margin-top: 15px; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline;"><span style="color: white; font-family: "monaco" , "courier new" , "dejavu sans mono" , "bitstream vera sans mono" , monospace; font-size: medium;"><span style="line-height: 19px; white-space: pre-wrap;">sudo gedit /usr/share/applications/eclipse.desktop</span></span></pre>
</div>
<div>
<span style="background-color: white; font-size: 15px; line-height: 26px;"><span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;">It will launch an empty file, copy and paste the followings content into this empty file, as shown in following screenshot.</span></span></div>
<div>
<pre style="background-color: whitesmoke; border-radius: 4px; border: 1px solid rgb(204, 204, 204); box-sizing: border-box; margin-bottom: 10px; overflow: auto; padding: 9.5px; word-break: break-all; word-wrap: break-word;"><span style="color: #333333; font-family: "menlo" , "monaco" , "consolas" , "courier new" , monospace; font-size: large;"><span style="line-height: 25.7143px;">[Desktop Entry]

Name=Eclipse

Type=Application

Exec=/opt/eclipse/eclipse

Terminal=false

Icon=/opt/eclipse/icon.xpm

Comment=Integrated Development Environment

NoDisplay=false

Categories=Development;IDE;

Name[en]=eclipse.desktop</span></span></pre>
</div>
<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiVyPQJROj7V7JvcoQnVidvhGp9r4y_dvdvWPzUvAp1LsL3quq-noeiZd-xlWCPcoy-Uj8M1iKvAkU8CWVRO2SglPzS34ph20odnEDQyrKHJhzFb8uxq5ZcwnmZ9QjLAZKeGaEzcIbZS6Fv/s1600/gedit-eclipse_hackthesec.co.in.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiVyPQJROj7V7JvcoQnVidvhGp9r4y_dvdvWPzUvAp1LsL3quq-noeiZd-xlWCPcoy-Uj8M1iKvAkU8CWVRO2SglPzS34ph20odnEDQyrKHJhzFb8uxq5ZcwnmZ9QjLAZKeGaEzcIbZS6Fv/s1600/gedit-eclipse_hackthesec.co.in.png" /></a></div>
<div>
<span style="background-color: white; font-size: 15px; line-height: 26px;"><span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;">Save the file, and now run following command on terminal to automatically install this desktop file on your ubuntu system.</span></span></div>
<div>
<pre style="background-attachment: initial; background-clip: initial; background-color: #363636; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 7px; border: 1px solid rgb(221, 221, 221); font-stretch: inherit; margin-bottom: 15px; margin-top: 15px; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline;"><span style="color: white; font-family: "monaco" , "courier new" , "dejavu sans mono" , "bitstream vera sans mono" , monospace; font-size: medium;"><span style="line-height: 19px; white-space: pre-wrap;">sudo desktop-file-install /usr/share/applications/eclipse.desktop</span></span></pre>
</div>
<div>
<span style="background-color: white; font-size: 15px; line-height: 26px;"><span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;">As last step of the install, go to /usr/local/bin and create eclipse symlink, following two commands should take care of this:</span></span></div>
<div>
<pre style="background-attachment: initial; background-clip: initial; background-color: #363636; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 7px; border: 1px solid rgb(221, 221, 221); font-stretch: inherit; margin-bottom: 15px; margin-top: 15px; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline;"><span style="color: white; font-family: "monaco" , "courier new" , "dejavu sans mono" , "bitstream vera sans mono" , monospace; font-size: medium; line-height: 19px; white-space: pre-wrap;">cd /usr/local/bin
sudo ln -s /opt/eclipse/eclipse</span><span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px; line-height: 26px; white-space: normal;">
</span></span></pre>
</div>
<div>
<span style="background-color: white; font-size: 15px; line-height: 26px;"><span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;">Congratulations, Eclipse has been installed successfully, launch it from Applications menu.</span></span></div>
<div class="separator" style="clear: both; text-align: center;">
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<div>
<span style="background-color: white; font-size: 15px; line-height: 26px;"><span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;"><a href="http://www.hackthesec.co.in/">www.hackthesec.co.in</a></span></span></div>
</div>

How to Install Eclipse IDE on Ubuntu Linux 15.04

Install Eclipse IDE on Ubuntu Linux 15.04 Eclipse is an integrated development environment (IDE) used in computer programming. It contai...

How to Configure PXE(Network Boot) installation Server on CentOS/RHEL 7.x

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<h1 class="post-title entry-title" style="background-color: white; border: 0px; font-family: 'PT Serif', serif; font-stretch: inherit; font-weight: 400; letter-spacing: -1px; line-height: 1.3em; margin: 0px 0px 10px; padding: 0px; vertical-align: baseline; word-wrap: break-word;">
<span style="color: #990000; font-size: large;"><u>PXE (Network Boot) installation Server on CentOS/RHEL 7.x</u></span></h1>
<div>
<div>
<span style="color: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">The Preboot eXecution Environment (PXE, sometimes pronounced as pixie) specification describes a standardized client-server environment that boots a software assembly, retrieved from a network, on PXE-enabled clients. On the client side it requires only a PXE-capable network interface controller (NIC), and uses a small set of industry-standard network protocols such as DHCP and TFTP.</span></span></div>
<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjmF16zm4kuOIUfZQaaIbFQnusI56E4j4EBWIYDkc97QQ5EcHr3uJnTCfkGt7rDH2upuKmTpUGNGlN97_7-195tXCgGF7Dy4f_jF4atnEO39yPfrks1m-f06TEXhDF04l1nF_xMfEebkAYI/s1600/Setting-PXE-Network-Boot-in-CentOS_hackthesec.co.in.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjmF16zm4kuOIUfZQaaIbFQnusI56E4j4EBWIYDkc97QQ5EcHr3uJnTCfkGt7rDH2upuKmTpUGNGlN97_7-195tXCgGF7Dy4f_jF4atnEO39yPfrks1m-f06TEXhDF04l1nF_xMfEebkAYI/s1600/Setting-PXE-Network-Boot-in-CentOS_hackthesec.co.in.png" /></a></div>
<div>
<span style="color: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><br /></span></span></div>
<div>
<span style="color: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">The concept behind the PXE originated in the early days of protocols like BOOTP/DHCP/TFTP, and as of 2015 it forms part of the Unified Extensible Firmware Interface (UEFI) standard. Given fast and reliable local area networks (LANs), PXE is the most frequent choice for operating system booting, installation and deployment.</span></span></div>
</div>
<div>
<span style="color: #0b5394; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><b><u>Install required packages for PXE Setup</u></b></span></span></div>
<div>
<span style="background-color: white; font-size: 15px; line-height: 26px;"><span style="color: #333333; font-family: verdana, geneva, sans-serif;">To install and Configure pxe server on centos 7.x we need the following packages.</span></span></div>
<div>
<pre style="background: rgb(54, 54, 54); border-radius: 7px; border: 1px solid rgb(221, 221, 221); color: white; font-family: Monaco, 'Courier New', 'DejaVu Sans Mono', 'Bitstream Vera Sans Mono', monospace; font-stretch: inherit; line-height: 19px; margin-bottom: 15px; margin-top: 15px; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline; white-space: pre-wrap;"><span style="font-size: large;">[root@pxeserver ~]# yum install dhcp tftp tftp-server syslinux vsftpd xinetd</span></pre>
</div>
<div>
<span style="background-color: white; font-size: 15px; line-height: 26px;"><span style="color: #0b5394; font-family: verdana, geneva, sans-serif;"><b><u>Configure DHCP Server for PXE</u></b></span></span></div>
<div>
<span style="background-color: white; line-height: 26px;"><span style="color: #333333; font-family: verdana, geneva, sans-serif;"><div style="font-size: 15px;">
Install dhcp package then a sample configuration file of dhcp server is created at "<b>/usr/share/doc/dhcp*/dhcpd.conf.example</b>", though the configuration file of dhcp is at '<b>/etc/dhcp/dhcpd.conf</b>'.</div>
<div style="font-size: 15px;">
Copy the following lines into the file '<b>/etc/dhcp/dhcpd.con</b>f', replace the ip subnet and other details as per your environment.</div>
<div>
<pre style="background-attachment: initial; background-clip: initial; background-color: #363636; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 7px; border: 1px solid rgb(221, 221, 221); color: white; font-family: Monaco, 'Courier New', 'DejaVu Sans Mono', 'Bitstream Vera Sans Mono', monospace; font-stretch: inherit; line-height: 19px; margin-bottom: 15px; margin-top: 15px; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline; white-space: pre-wrap;"><span style="font-size: large;">[root@pxeserver~]# vi /etc/dhcp/dhcpd.conf

# DHCP Server Configuration file.

ddns-update-style interim;
ignore client-updates;
authoritative;
allow booting;
allow bootp;
allow unknown-clients;

# internal subnet for my DHCP Server
subnet 192.168.2.0 netmask 255.255.255.0 {
range 192.168.2.21 192.168.2.151;
option domain-name-servers 192.168.2.11;
option domain-name "pxeserver.hackthesec.co.in";
option routers 192.168.2.11;
option broadcast-address 192.168.2.255;
default-lease-time 600;
max-lease-time 7200;

# IP of PXE Server
next-server 192.168.2.11;
filename "pxelinux.0";
}</span></pre>
</div>
</span></span></div>
<div>
<span style="background-color: white; line-height: 26px;"><span style="font-family: verdana, geneva, sans-serif;"><div style="font-size: 15px;">
<b><u><span style="color: #0b5394;">Edit and Config tftp server (/etc/xinetd.d/tftp)</span></u></b></div>
<div style="color: #333333; font-size: 15px;">
TFTP (Trivial File Transfer Protocol ) is used to transfer files from data server to its clients without any kind of authentication. In case of PXE server setup tftp is used for bootstrap loading. To config tftp server, edit its configuration file '/etc/xinetd.d/tftp', change the parameter ‘disable = yes' to 'disable = no' and leave the other parameters as it is.</div>
<div style="color: #333333;">
<pre style="background-attachment: initial; background-clip: initial; background-color: #363636; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 7px; border: 1px solid rgb(221, 221, 221); color: white; font-family: Monaco, 'Courier New', 'DejaVu Sans Mono', 'Bitstream Vera Sans Mono', monospace; font-stretch: inherit; line-height: 19px; margin-bottom: 15px; margin-top: 15px; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline; white-space: pre-wrap;"><span style="font-size: large;">[root@pxeserver ~]# vi /etc/xinetd.d/tftp
service tftp
{
 socket_type = dgram
 protocol    = udp
 wait        = yes
 user        = root
 server      = /usr/sbin/in.tftpd
 server_args = -s /var/lib/tftpboot
 disable     = no
 per_source  = 11
 cps         = 100 2
 flags       = IPv4
}</span></pre>
</div>
</span></span></div>
<div>
<span style="background-color: white; font-size: 15px; line-height: 26px;"><span style="color: #333333; font-family: verdana, geneva, sans-serif;"><div>
tftp root directory "/var/lib/tftpboot"</div>
<div>
Run the following commands to copy required network boot files in '/var/lib/tftpboot/'</div>
</span></span></div>
<div>
<pre style="background: rgb(54, 54, 54); border-radius: 7px; border: 1px solid rgb(221, 221, 221); color: white; font-family: Monaco, 'Courier New', 'DejaVu Sans Mono', 'Bitstream Vera Sans Mono', monospace; font-stretch: inherit; line-height: 19px; margin-bottom: 15px; margin-top: 15px; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline; white-space: pre-wrap;"><span style="font-size: large;">[root@pxeserver ~]# cp -v /usr/share/syslinux/pxelinux.0 /var/lib/tftpboot
[root@pxeserver ~]# cp -v /usr/share/syslinux/menu.c32 /var/lib/tftpboot
[root@pxeserver ~]# cp -v /usr/share/syslinux/memdisk /var/lib/tftpboot
[root@pxeserver ~]# cp -v /usr/share/syslinux/mboot.c32 /var/lib/tftpboot
[root@pxeserver ~]# cp -v /usr/share/syslinux/chain.c32 /var/lib/tftpboot
[root@pxeserver ~]# mkdir /var/lib/tftpboot/pxelinux.cfg
[root@pxeserver ~]# mkdir /var/lib/tftpboot/networkboot</span></pre>
</div>
<div>
<span style="background-color: white; font-size: 15px; line-height: 26px;"><span style="font-family: verdana, geneva, sans-serif;"><div>
<b><u><span style="color: #0b5394;">Mount CentOS 7.x ISO file and copy its contents to local ftp server</span></u></b></div>
<div style="color: #333333;">
Run the following commands to mount iso file and copy its contents in ftp server’s directory '<b>/var/ftp/pub</b>'</div>
</span></span></div>
<div>
<pre style="background: rgb(54, 54, 54); border-radius: 7px; border: 1px solid rgb(221, 221, 221); color: white; font-family: Monaco, 'Courier New', 'DejaVu Sans Mono', 'Bitstream Vera Sans Mono', monospace; font-stretch: inherit; line-height: 19px; margin-bottom: 15px; margin-top: 15px; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline; white-space: pre-wrap;"><span style="font-size: large;">[root@pxeserver ~]# mount -o loop CentOS-7-x86_64-DVD-1511.iso /mnt/
mount: /dev/loop0 is write-protected, mounting read-only
[root@pxeserver ~]# cd /mnt/
[root@pxeserver mnt]# cp -av * /var/ftp/pub/</span></pre>
</div>
<div>
<span style="background-color: white; font-size: 15px; line-height: 26px;"><span style="color: #333333; font-family: verdana, geneva, sans-serif;">Copy Kernel file (vmlimz) and initrd file from mounted iso file to '/var/lib/tftpboot/networkboot/'</span></span></div>
<div>
<pre style="background: rgb(54, 54, 54); border-radius: 7px; border: 1px solid rgb(221, 221, 221); color: white; font-family: Monaco, 'Courier New', 'DejaVu Sans Mono', 'Bitstream Vera Sans Mono', monospace; font-stretch: inherit; line-height: 19px; margin-bottom: 15px; margin-top: 15px; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline; white-space: pre-wrap;"><span style="font-size: large;">[root@pxeserver ~]# cp /mnt/images/pxeboot/vmlinuz /var/lib/tftpboot/networkboot/
[root@pxeserver ~]# cp /mnt/images/pxeboot/initrd.img /var/lib/tftpboot/networkboot/</span></pre>
</div>
<div>
<span style="background-color: white; font-size: 15px; line-height: 26px;"><span style="color: #333333; font-family: verdana, geneva, sans-serif;"><div>
<b><u>Create kickStart & PXE menu file.</u></b></div>
<div>
Before creating kickstart file, let's first create the root password in an encrypted string because we will using that encrypted password string in kickstart file</div>
</span></span></div>
<div>
<pre style="background: rgb(54, 54, 54); border-radius: 7px; border: 1px solid rgb(221, 221, 221); color: white; font-family: Monaco, 'Courier New', 'DejaVu Sans Mono', 'Bitstream Vera Sans Mono', monospace; font-stretch: inherit; line-height: 19px; margin-bottom: 15px; margin-top: 15px; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline; white-space: pre-wrap;"><span style="font-size: large;">[root@pxeserver ~]# openssl passwd -1 Pxese@123#
$1$e2wrcGGw$tZOPMCSXVhNmbiGg66seGH</span></pre>
</div>
<div>
<span style="background-color: white; font-size: 15px; line-height: 26px;"><span style="color: #333333; font-family: verdana, geneva, sans-serif;"><div>
System default kickstart file is placed under <b>/root/anaconda-ks.cfg</b>. and we will be creating a new kickstart under the folder /var/ftp/pub with the name'<b>centos7.cfg</b>'</div>
<div>
Copy the following content into the new kickstart file. Please modify the kickstart file as per your needs.</div>
</span></span></div>
<div>
<pre style="background: rgb(54, 54, 54); border-radius: 7px; border: 1px solid rgb(221, 221, 221); color: white; font-family: Monaco, 'Courier New', 'DejaVu Sans Mono', 'Bitstream Vera Sans Mono', monospace; font-stretch: inherit; line-height: 19px; margin-bottom: 15px; margin-top: 15px; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline; white-space: pre-wrap;"><span style="font-size: large;">[root@pxeserver ~]# vi /var/ftp/pub/centos7.cfg

#platform=x86, AMD64, or Intel EM64T
#version=DEVEL
# Firewall configuration
firewall --disabled
# Install OS instead of upgrade
install
# Use FTP installation media
url --url="ftp://192.168.2.11/pub/"
# Root password
rootpw --iscrypted $1$e2wrcGGX$tZPQKPsXVhNmbiGg53MN41
# System authorization information
auth useshadow passalgo=sha512
# Use graphical install
graphical
firstboot disable
# System keyboard
keyboard us
# System language
lang en_US
# SELinux configuration
selinux disabled
# Installation logging level
logging level=info
# System timezone
timezone asia/kolkata
# System bootloader configuration
bootloader location=mbr
clearpart --all --initlabel
part swap --asprimary --fstype="swap" --size=1024
part /boot --fstype xfs --size=300
part pv.01 --size=1 --grow
volgroup root_vg01 pv.01
logvol / --fstype xfs --name=lv_01 --vgname=root_vg01 --size=1 --grow
%packages
@^minimal
@core
%end
%addon com_redhat_kdump --disable --reserve-mb='auto'
%end</span></pre>
</div>
<div>
<span style="background-color: white; font-size: 15px; line-height: 26px;"><span style="color: #333333; font-family: verdana, geneva, sans-serif;">Create a PXE menu file (<b>/var/lib/tftpboot/pxelinux.cfg/default</b>), copy the following contents into the pxe menu file.</span></span></div>
<div>
<pre style="background: rgb(54, 54, 54); border-radius: 7px; border: 1px solid rgb(221, 221, 221); color: white; font-family: Monaco, 'Courier New', 'DejaVu Sans Mono', 'Bitstream Vera Sans Mono', monospace; font-stretch: inherit; line-height: 19px; margin-bottom: 15px; margin-top: 15px; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline; white-space: pre-wrap;"><span style="font-size: large;">[root@pxeserver ~]# vi /var/lib/tftpboot/pxelinux.cfg/default

default menu.c32
prompt 0
timeout 30
MENU TITLE Hack The Sec PXE Menu
LABEL centos7_x64
MENU LABEL CentOS 7_X64
KERNEL /networkboot/vmlinuz
APPEND initrd=/networkboot/initrd.img inst.repo=ftp://192.168.2.11/pub ks=ftp://192.168.2.11/pub/centos7.cfg</span></pre>
</div>
<div>
<span style="background-color: white; font-size: 15px; line-height: 26px;"><span style="font-family: verdana, geneva, sans-serif;"><div>
<b><u><span style="color: #0b5394;">Start and enable xinetd, dhcp and vsftpd service.</span></u></b></div>
<div style="color: #333333;">
Use the fllowing commands to start and enable xinetd, dhcp and vsftpd.</div>
</span></span></div>
<div>
<pre style="background: rgb(54, 54, 54); border-radius: 7px; border: 1px solid rgb(221, 221, 221); color: white; font-family: Monaco, 'Courier New', 'DejaVu Sans Mono', 'Bitstream Vera Sans Mono', monospace; font-stretch: inherit; line-height: 19px; margin-bottom: 15px; margin-top: 15px; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline; white-space: pre-wrap;"><span style="font-size: large;">[root@pxeserver ~]# systemctl start xinetd
[root@pxeserver ~]# systemctl enable xinetd
[root@pxeserver ~]# systemctl start dhcpd.service
[root@pxeserver ~]# systemctl enable dhcpd.service
Created symlink from /etc/systemd/system/multi-user.target.wants/dhcpd.service to /usr/lib/systemd/system/dhcpd.service.
[root@pxeserver ~]# systemctl start vsftpd
[root@pxeserver ~]# systemctl enable vsftpd
Created symlink from /etc/systemd/system/multi-user.target.wants/vsftpd.service to /usr/lib/systemd/system/vsftpd.service.</span></pre>
</div>
<div>
<span style="background-color: white; font-size: 15px; line-height: 26px;"><span style="color: #333333; font-family: verdana, geneva, sans-serif;">If your SELinux is enabled, then set the following selinux rule for ftp server.</span></span></div>
<div>
<pre style="background: rgb(54, 54, 54); border-radius: 7px; border: 1px solid rgb(221, 221, 221); color: white; font-family: Monaco, 'Courier New', 'DejaVu Sans Mono', 'Bitstream Vera Sans Mono', monospace; font-stretch: inherit; line-height: 19px; margin-bottom: 15px; margin-top: 15px; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline; white-space: pre-wrap;"><span style="font-size: large;">[root@pxeserver ~]# setsebool -P allow_ftpd_full_access 1</span></pre>
</div>
<div>
<span style="background-color: white; font-size: 15px; line-height: 26px;"><span style="color: #333333; font-family: verdana, geneva, sans-serif;">Open the ports in the OS firewall using following firewall-cmd commands</span></span></div>
<div>
<pre style="background: rgb(54, 54, 54); border-radius: 7px; border: 1px solid rgb(221, 221, 221); color: white; font-family: Monaco, 'Courier New', 'DejaVu Sans Mono', 'Bitstream Vera Sans Mono', monospace; font-stretch: inherit; line-height: 19px; margin-bottom: 15px; margin-top: 15px; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline; white-space: pre-wrap;"><span style="font-size: large;">[root@pxeserver ~]# firewall-cmd --add-service=ftp --permanent
success
[root@</span><span style="font-size: large;">pxeserver </span><span style="font-size: large;">~]# firewall-cmd --add-service=dhcp --permanent</span>
<span style="font-size: large;">success
[root@</span><span style="font-size: large;">pxeserver </span><span style="font-size: large;">~]# firewall-cmd --add-port=69/tcp --permanent </span>
<span style="font-size: large;">success
[root@</span><span style="font-size: large;">pxeserver </span><span style="font-size: large;">~]# firewall-cmd --add-port=69/udp --permanent </span>
<span style="font-size: large;">success
[root@</span><span style="font-size: large;">pxeserver </span><span style="font-size: large;">~]# firewall-cmd --add-port=4011/udp --permanent</span>
<span style="font-size: large;">success
[root@</span><span style="font-size: large;">pxeserver </span><span style="font-size: large;">~]# firewall-cmd --reload</span>
<span style="font-size: large;">success</span></pre>
</div>
<div>
<span style="background-color: white; font-size: 15px; line-height: 26px;"><span style="color: #333333; font-family: verdana, geneva, sans-serif;">Boot the clients with pxe boot option.</span></span></div>
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