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phpVirtualBox – A web-based front end for VirtualBox

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phpVirtualBox – A web-based front end for VirtualBox 
phpVirtualBox is a web-based front-end to VirtualBox that allows you to control your VirtualBox environment.An open source, AJAX implementation of the VirtualBox user interface written in PHP. As a modern web interface, it allows you to access and control remote VirtualBox instances. phpVirtualBox is designed to allow users to administer VirtualBox in a headless environment - mirroring the VirtualBox GUI through its web interface. 
INSTALLATION  
<pre style="background: rgb(68, 68, 68); border-radius: 3px; border: 1px solid rgb(221, 221, 221); color: white; font-family: "Courier 10 Pitch", Courier, monospace; font-size: 15px; font-stretch: inherit; line-height: 19px; margin-bottom: 30px; margin-top: 30px; max-width: 100%; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline; word-wrap: normal;"><span style="border: 0px; color: #848484; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;">[Install Apache & PHP]
$ sudo apt-get install apache2 php5 php5-mysql libapache2-mod-php5 php-soap

<span style="border: 0px; color: #848484; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;">[Start Apache Service on RPM based system]
$ sudo systemctl start httpd
$ sudo /etc/init.d/httpd start</pre>
Visit <a href="https://sourceforge.net/projects/phpvirtualbox/">phpVirtualBox official Website</a> and download the latest version phpVirtualBox 
<pre style="background: rgb(68, 68, 68); border-radius: 3px; border: 1px solid rgb(221, 221, 221); color: white; font-family: "Courier 10 Pitch", Courier, monospace; font-size: 15px; font-stretch: inherit; line-height: 19px; margin-bottom: 30px; margin-top: 30px; max-width: 100%; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline; word-wrap: normal;">$ sudo wget https://sourceforge.net/projects/phpvirtualbox/files/phpvirtualbox-5.0-5.zip
$ sudo unzip phpvirtualbox-5.0-5.zip
$ sudo mv phpvirtualbox-5.0-5 /var/www/html/phpvirtualbox
$ sudo chmod 777 /var/www/html/phpvirtualbox</pre>
VirtualBox provides a service called vboxwebsrv which allow phpVirtualBox to connect to it. 
<pre style="background: rgb(68, 68, 68); border-radius: 3px; border: 1px solid rgb(221, 221, 221); color: white; font-family: "Courier 10 Pitch", Courier, monospace; font-size: 15px; font-stretch: inherit; line-height: 19px; margin-bottom: 30px; margin-top: 30px; max-width: 100%; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline; word-wrap: normal;"><span style="border: 0px; color: #848484; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;">[Create Vboxwebsrv user : Use existing user or create new users as your wish]
$ sudo useradd virtual
$ sudo passwd virtual

<span style="border: 0px; color: #848484; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;">[Add the user to vboxuser group]
$ sudo usermod -a -G vboxuser virtual</pre>
Edit or create the following configuration file using your preferred text editor and Add the following contents. 
<pre style="background: rgb(68, 68, 68); border-radius: 3px; border: 1px solid rgb(221, 221, 221); color: white; font-family: "Courier 10 Pitch", Courier, monospace; font-size: 15px; font-stretch: inherit; line-height: 19px; margin-bottom: 30px; margin-top: 30px; max-width: 100%; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline; word-wrap: normal;">$ sudo nano /etc/default/virtualbox
VBOXWEB_USER="virtual"</pre>
Configure phpVirtualBox by editing config.php file. 
<pre style="background: rgb(68, 68, 68); border-radius: 3px; border: 1px solid rgb(221, 221, 221); color: white; font-family: "Courier 10 Pitch", Courier, monospace; font-size: 15px; font-stretch: inherit; line-height: 19px; margin-bottom: 30px; margin-top: 30px; max-width: 100%; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline; word-wrap: normal;">$ sudo cp /var/www/html/phpvirtualbox/config.php-example /var/www/html/phpvirtualbox/config.php
$ sudo nano /var/www/html/phpvirtualbox/config.php
[...]
var $username = 'virtual';
var $password = '12345';
[...]</pre>
Start the virtualbox web service 
<pre style="background: rgb(68, 68, 68); border-radius: 3px; border: 1px solid rgb(221, 221, 221); color: white; font-family: "Courier 10 Pitch", Courier, monospace; font-size: 15px; font-stretch: inherit; line-height: 19px; margin-bottom: 30px; margin-top: 30px; max-width: 100%; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline; word-wrap: normal;"><span style="border: 0px; color: #848484; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;">[Start the virtualbox web service on systemd Systems]
$ sudo systemctl start vboxweb-service

<span style="border: 0px; color: #848484; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;">[Restart Apache Service on RPM based system]
$ sudo systemctl restart httpd
$ sudo /etc/init.d/httpd restart</pre>
Working with phpVirtualBox 
 
Now you can access phpVirtualBox Web console on any system which have GUI desktop environements through http://ip-address-of-virtualbox-server/phpvirtualbox. The default username/password is admin:admin. 
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I have successfully got virtualbox interface, now you can Manage & Administrate the VM’s. 
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phpVirtualBox – A web-based front end for VirtualBox

phpVirtualBox – A web-based front end for VirtualBox phpVirtualBox is a web-based front-end to VirtualBox that allows you to control your ...

Atop – monitor system resources in Linux

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Atop – monitor system resources in Linux 
Atop is an ASCII full-screen performance monitor for Linux that is capable of reporting the activity of all processes (even if processes have finished during the interval), daily logging of system and process activity for long-term analysis, highlighting overloaded system resources by using colors, etc. At regular intervals, it shows system-level activity related to the CPU, memory, swap, disks (including LVM) and network layers, and for every process (and thread) it shows e.g. the CPU utilization, memory growth, disk utilization, priority, username, state, and exit code. 
In combination with the optional kernel module netatop, it even shows network activity per process/thread. 
 
The command atop has some major advantages compared to other performance monitoring tools: 
 
<ul style="text-align: left;">
<li>Resource consumption by all processes</li>
<li>Utilization of all relevant resources</li>
<li>Permanent logging of resource utilization</li>
<li>Highlight critical resources</li>
<li>Scalable window width</li>
<li>Resource consumption by individual threads</li>
<li>Watch activity only</li>
<li>Watch deviations only</li>
<li>Accumulated process activity per user</li>
<li>Accumulated process activity per program</li>
<li>Network activity per process</li>
</ul>
<div>
Install atop on RHEL/CentOS and Fedora linux</div>
 
 
First you need to enable <a href="http://www.hackthesec.co.in/search/label/EPEL">EPEL </a>or RPMForge repository as described here to install atop. Type the following yum command: 
<span style="-webkit-text-stroke-width: 0px; background-color: white; color: #0b5394; font-family: verdana, geneva, sans-serif; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: 19.2px; orphans: auto; text-align: left; text-indent: 0px; text-transform: none; white-space: normal; widows: 1; word-spacing: 0px;"> 
<pre style="-webkit-text-stroke-width: 0px; background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; color: white; font-family: monospace, serif; font-size: 14px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: 19.2px; margin-bottom: 10px !important; margin-top: 10px !important; orphans: auto; overflow: auto; padding: 10px !important; text-align: left; text-indent: 0px; text-transform: none; widows: 1; width: auto !important; word-break: break-all; word-spacing: 0px;"># yum -y install atop</pre>
Install Atop on Debian/Ubuntu and Mint linux 
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; color: white; font-family: monospace, serif; font-size: 14px; line-height: 19.2px; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;"># sudo apt-get install atop -y</pre>
How to use atop program 
 
Type the following command as root user: 
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; color: white; font-family: monospace, serif; font-size: 14px; line-height: 19.2px; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;"># atop</pre>
Example output: 
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To see active processes only 
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; color: white; font-family: monospace, serif; font-size: 14px; line-height: 19.2px; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;"># atop -a</pre>
Display individual threads 
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; color: white; font-family: monospace, serif; font-size: 14px; line-height: 19.2px; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;"># atop -y</pre>
Display average-per-second i.s.o. total values 
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; color: white; font-family: monospace, serif; font-size: 14px; line-height: 19.2px; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;"># atop -1</pre>
Display memory-related process-info 
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; color: white; font-family: monospace, serif; font-size: 14px; line-height: 19.2px; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;"># atop -m</pre>
Display disk-related process-info 
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; color: white; font-family: monospace, serif; font-size: 14px; line-height: 19.2px; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;"># atop -d</pre>
Display network-related process-info 
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; color: white; font-family: monospace, serif; font-size: 14px; line-height: 19.2px; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;"># atop -n</pre>
Display scheduling-related process-info 
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; color: white; font-family: monospace, serif; font-size: 14px; line-height: 19.2px; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;"># atop -s</pre>
Display various process-info (ppid, user/group, date/time) 
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; color: white; font-family: monospace, serif; font-size: 14px; line-height: 19.2px; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;"># atop -v</pre>
Display command line per process 
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; color: white; font-family: monospace, serif; font-size: 14px; line-height: 19.2px; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;"># atop -c</pre>
Sorting option 
Pass the following option to sort your process: 
 
-C sort processes in order of cpu-consumption (default) 
-M sort processes in order of memory-consumption 
-D sort processes in order of disk-activity 
-N sort processes in order of network-activity 
-A sort processes in order of most active resource (auto mode) 
 
 
For more information about Atop see man page: 
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; color: white; font-family: monospace, serif; font-size: 14px; line-height: 19.2px; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;"># man atop</pre>
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Atop – monitor system resources in Linux

Atop – monitor system resources in Linux Atop is an ASCII full-screen performance monitor for Linux that is capable of reporting the activ...

How to setup Cacti on RHEL/Centos 7.x

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Setup Cacti on RHEL 7.x and CentOS 7.x System 
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiPknc-KxjFEsEFc3TJas554xPxL7yopdQxZQCyql94RHhsRnnvHHOt-OHnslcJzQHfOhtQaOTHlmXe9KY9pYW-E3WwCt8LZUJkQJCZgPllCratXAK1V2zG9xBBs_cLDcZphDVNpGB5WxEw/s1600/cacti.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/AVvXsEiPknc-KxjFEsEFc3TJas554xPxL7yopdQxZQCyql94RHhsRnnvHHOt-OHnslcJzQHfOhtQaOTHlmXe9KY9pYW-E3WwCt8LZUJkQJCZgPllCratXAK1V2zG9xBBs_cLDcZphDVNpGB5WxEw/s1600/cacti.png" /></a>Cacti is an open-source, web-based network monitoring and graphing tool designed as a front-end application for the open-source, industry-standard data logging tool RRDtool. Cacti allows a user to poll services at predetermined intervals and graph the resulting data. It is generally used to graph time-series data of metrics such as CPU load and network bandwidth utilization. A common usage is to monitor network traffic by polling a network switch or router interface via Simple Network Management Protocol (SNMP). 
 
The front end can handle multiple users, each with their own graph sets, so it is sometimes used by web hosting providers (especially dedicated server,virtual private server, and collocation providers) to display bandwidth statistics for their customers. It can be used to configure the data collection itself, allowing certain setups to be monitored without any manual configuration of RRDtool. Cacti can be extended to monitor any source via shell scripts and executables. 
 
Cacti can use one of two back ends: "cmd.php", a PHP script suitable for smaller installations, or "Spine" (formerly Cactid), a C-based poller which can scale to thousands of hosts. 
Install Apache, MariaDb php SNMP and RRDtool 
 
Login in your Linux machine as root and run following command to install apache, php, MariaDB: 
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; color: white; font-family: monospace, serif; font-size: 14px; line-height: 19.2px; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;"># yum install httpd httpd-devel mariadb-server php-mysql php-pear php-common php-gd php-devel php php-mbstring php-cli -y</pre>
Install php-snmp, net-snmp and rrdtool 
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; color: white; font-family: monospace, serif; font-size: 14px; line-height: 19.2px; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;"># yum install php-snmp net-snmp-utils net-snmp-libs rrdtool -y</pre>
Start HTTPD, MySQL and SNMP service 
 
To start HTTPD, MySQL and SNMP service enter following command in your console 
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; color: white; font-family: monospace, serif; font-size: 14px; line-height: 19.2px; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;"># systemctl start httpd.service
# systemctl start mariadb.service
# systemctl start snmpd.service</pre>
Add HTTPD, MySQL and SNMP service to start on boot time: 
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; color: white; font-family: monospace, serif; font-size: 14px; line-height: 19.2px; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;"># systemctl enable httpd.service
# systemctl enable mariadb.service
# systemctl enable snmpd.service</pre>
Setup MySQL database and User Accounts 
 
First, set the MySQL root password: 
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; color: white; font-family: monospace, serif; font-size: 14px; line-height: 19.2px; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;"># mysqladmin -u root password YOUR_PASSWORD</pre>
Now, create cacti database. Login into your MySQL server and create cacti database width user cacti and set the password for it: 
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; color: white; font-family: monospace, serif; font-size: 14px; line-height: 19.2px; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;"># mysql -u root -p
MariaDB [(none)]> create database cacti;
MariaDB [(none)]> GRANT ALL ON cacti.* TO cacti@localhost IDENTIFIED BY 'cactipass';
MariaDB [(none)]> FLUSH privileges;
MariaDB [(none)]> quit;</pre>
Install Cacti on RHEL/CentOS 7.x 
 
For installing cacti trough YUM command you must enable EPEL repository: 
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; color: white; font-family: monospace, serif; font-size: 14px; line-height: 19.2px; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;"># yum install epel-release -y</pre>
After enabling EPEL repository, type following command to install cacti: 
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; color: white; font-family: monospace, serif; font-size: 14px; line-height: 19.2px; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;"># yum install cacti -y</pre>
Install cacti tables to MySQL and configure MySQL settings for cacti 
 
Now, import cacti database tables from the cacti.sql file. First locate cacti.sql file: 
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; color: white; font-family: monospace, serif; font-size: 14px; line-height: 19.2px; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;"># rpm -ql cacti|grep cacti.sql
/usr/share/doc/cacti-0.8.8b/cacti.sql</pre>
Import tables to cacti database: 
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; color: white; font-family: monospace, serif; font-size: 14px; line-height: 19.2px; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;"># mysql -u cacti -p cacti < /usr/share/doc/cacti-0.8.8b/cacti.sql
Enter password:</pre>
Open /etc/cacti/db.php file using nano of VI editor and edit the below lines: 
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; color: white; font-family: monospace, serif; font-size: 14px; line-height: 19.2px; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;">$database_type = "mysql";
$database_default = "cacti";
$database_hostname = "localhost";
$database_username = "cacti";
$database_password = "cactipass";</pre>
Open http port in firewall 
 
Open an http port in firewall: 
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; color: white; font-family: monospace, serif; font-size: 14px; line-height: 19.2px; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;"># firewall-cmd --permanent --zone=public --add-service=http
# firewall-cmd --reload</pre>
Configure apache to Network Accessible 
 
Open file called /etc/httpd/conf.d/cacti.conf 
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; color: white; font-family: monospace, serif; font-size: 14px; line-height: 19.2px; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;"># etc/httpd/conf.d/cacti.conf</pre>
Now edit the "Allow From" line, Either set to ALL or enter your LAN subnet to allow access to cacti: 
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; color: white; font-family: monospace, serif; font-size: 14px; line-height: 19.2px; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;">Alias /cacti /usr/share/cacti

<Directory /usr/share/cacti/>
 <IfModule mod_authz_core.c>
 # httpd 2.4
 Require host 192.168.0.0/24
 </IfModule>
 <IfModule !mod_authz_core.c>
 # httpd 2.2
 Order deny,allow
 Deny from all
 Allow from 192.168.0.0/24
 </IfModule>
</Directory></pre>
After editing cacti configuration file, restart the Apache service: 
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; color: white; font-family: monospace, serif; font-size: 14px; line-height: 19.2px; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;"># systemctl restart httpd.service</pre>
Set cron for cacti 
 
Open /etc/cron.d/cacti file and uncomment the line: 
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; color: white; font-family: monospace, serif; font-size: 14px; line-height: 19.2px; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;">*/5 * * * * cacti /usr/bin/php /usr/share/cacti/poller.php > /dev/null 2>&1</pre>
Run cacti installer 
 
Go to http://YOUR-IP-ADDRESS/cacti/ and just follow the instructions on screen. The default username and password for cacti is admin/admin. Upon first login you will be forced to change the default password. 
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More information about cacti, see <a href="http://www.cacti.net/">HERE</a>. 
<div style="text-align: center;">
<a href="http://www.hackthesec.co.in/">www.hackthesec.co.in</a></div>
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How to setup Cacti on RHEL/Centos 7.x

Setup Cacti on RHEL 7.x and CentOS 7.x System Cacti is an open-source, web-based network monitoring and graphing tool designed as a front-...

How to install Kloxo-Mr on CentOS 6.x

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Install Kloxo-Mr on Linux 
Kloxo (formerly known as Lxadmin) is a free, opensource web hosting control panel for the <a href="http://www.hackthesec.co.in/search/label/RHEL">Red Hat</a> and <a href="http://www.hackthesec.co.in/search/label/Centos">CentOS </a>Linux distributions. 
 
Kloxo allows the host administrators to run a combination of <a href="http://www.hackthesec.co.in/search/label/lighttpd_web_server">lighttpd </a>or <a href="http://www.hackthesec.co.in/search/label/Apache">Apache</a> with djbdns or BIND, and provides a graphical interface to switch between these programs without losing data. Kloxo Enterprise can transparently move web/mail/dns from one server running Apache to another running lighttpd. It is also known as a good free alternative to cPanel hosting control panel. 
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Kloxo comes integrated with Install app, which is a bundle of approximately 130 web applications that can be installed to the hosted websites. It is supported by Installation - a third party application installer (similar to Fantastico) as a plugin. 
Features 
It comes with with lots of Server/web applications. 
 
<ul style="text-align: left;">
<li>MAIL SERVER: Qmail toaster.</li>
<li>Database: <a href="http://www.hackthesec.co.in/search/label/Mysql">Mysql</a>, <a href="http://www.hackthesec.co.in/search/label/MaraiDB">MariaDB</a>.</li>
<li>Database Manager: <a href="http://www.hackthesec.co.in/search/label/phpmyadmin">PHPMYAdmin</a>, Adminer, Mywebsql.</li>
<li>DNS: BIND, djbdns.</li>
<li>FTP: Pure-ftpd.</li>
<li>ADDON: Clamav, Spamassassin,<a href="http://www.hackthesec.co.in/search/label/RkHunter">RKhunter</a>.</li>
<li>WEBMAIL: Squirrelmail, Roundcube, horald.</li>
<li>BILLING: Host Bill, the hosting bill, Blesta, AccountLAB Plus.</li>
</ul>
<div>
INSTALLATION</div>
 
 
First, let's update all your system software to the latest version available using the yum package manager. 
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; color: white; font-family: monospace, serif; font-size: 14px; line-height: 19.2px; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;">yum update</pre>
Once the update of your system is completed, you can proceed with the installation of the required packages. The required packages can be installed with the command below: 
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; color: white; font-family: monospace, serif; font-size: 14px; line-height: 19.2px; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;">yum install yum-utils yum-priorities vim-minimal subversion curl zip unzip yum install yum-utils yum-priorities vim-minimal subversion curl zip unzip -y</pre>
Now, lets install Kloxo-MR 
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; color: white; font-family: monospace, serif; font-size: 14px; line-height: 19.2px; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;"># cd /tmp
# wget https://github.com/mustafaramadhan/kloxo/raw/rpms/release/neutral/noarch/mratwork-release-0.0.1-1.noarch.rpm --no-check-certificate
# yum install mratwork-release-0.0.1-1.noarch.rpm -y
# cd / 
# yum install mratwork-release-0.0.1-1.noarch.rpm -y</pre>
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Run following script after above step get complete 
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; color: white; font-family: monospace, serif; font-size: 14px; line-height: 19.2px; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;"># sh /script/upcp</pre>
Once the installation is completed, you can open the web browser you prefer and enter one of the following web addresses: 
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; color: white; font-family: monospace, serif; font-size: 14px; line-height: 19.2px; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;">https://IP-ADDRESS:7777
http://IP-ADDRESS:7778</pre>
Default username and password is: admin admin 
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After Login default panel will appear. 
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<a href="http://www.hackthesec.co.in/">www.hackthesec.co.in</a></div>
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 </div>
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How to install Kloxo-Mr on CentOS 6.x

Install Kloxo-Mr on Linux Kloxo (formerly known as Lxadmin) is a free, opensource web hosting control panel for the Red Hat and CentOS Li...

How to Install Atom Text Editor on Linux

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Install Atom Text Editor on Linux 
Atom is a free and open-source text and source code editor for OS X, <a href="http://www.hackthesec.co.in/search/label/Linux%20Tutorial">Linux</a>, and Windows with support for plug-ins written in <a href="http://www.hackthesec.co.in/search/label/Node.Js">Node.js</a>, and embedded Git Control, developed by GitHub. Atom is a desktop application built using web technologies.Most of the extending packages have free software licenses and are community-built and maintained. 
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Atom is based on Electron (formerly known as Atom Shell),a framework that enables cross-platform desktop applications using Chromium and Node.js. It is written in CoffeeScript and Less.It can also be used as an IDE. Atom was released from beta, as version 1.0, on June 25, 2015.Its developers call it a "hackable text editor for the 21st Century" 
Features 
 
<ul style="text-align: left;">
<li>Cross-platform editing – Atom works across operating systems. You can use it on OS X, Windows, or Linux.</li>
<li>Built-in package manager – Search for and install new packages or start creating your own—all from within Atom.</li>
<li>The smart autocompletion – Atom helps you write code faster with a smart, flexible autocomplete.</li>
<li>File system browser – Easily browse and open a single file, a whole project, or multiple projects in one window.</li>
<li>Multiple panes – Split your Atom interface into multiple panes to compare and edit code across files.</li>
<li>Find and replace – Find, preview, and replace text as you type in a file or across all your projects.</li>
</ul>
 
 
INSTALLATION  
To install Atom on Linux, you can download a <a href="https://atom.io/download/deb" target="_blank">Debian package</a> or <a href="https://atom.io/download/rpm" target="_blank">RPM package</a> either from the main Atom website at <a href="http://atom.io/">atom.io</a> or from the Atom project releases page at <a href="https://github.com/atom/atom/releases">https://github.com/atom/atom/releases</a> 
Install Atom on Debian, Ubuntu And Mint Linux 
We can install the Atom 1.3.1 Text Editor on Debian, Ubuntu And Mint Linux enter following command: 
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; color: white; font-family: monospace, serif; font-size: 14px; line-height: 19.2px; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;">$ wget https://github.com/atom/atom/releases/download/v1.3.1/atom-amd64.deb
$ sudo dpkg -i atom-amd64.deb</pre>
Install Atom on RHEL/CentOS and Fedora Linux 
 
To install Atom 1.3.1 Text Editor on RHEL/CentOS and Fedora Linux enter following command: 
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; color: white; font-family: monospace, serif; font-size: 14px; line-height: 19.2px; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;">$ wget https://github.com/atom/atom/releases/download/v1.3.1/atom.x86_64.rpm
$ sudo rpm -ivh atom.x86_64.rpm</pre>
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<a href="http://www.hackthesec.co.in/">www.hackthesec.co.in</a></div>
 </div>

How to Install Atom Text Editor on Linux

Install Atom Text Editor on Linux Atom is a free and open-source text and source code editor for OS X, Linux , and Windows with support fo...

How to enable timestamp in Linux History command

How to enable timestamp in Linux History command

Enable timestamp in Linux History command The Bash history feature is an invaluable tool which allows users to recall commands previously ...

How to install Cherokee Web server on Ubuntu and Rhel/CentOS linux

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Installing Cherokee Web server on Linux 
Cherokee is an open-source cross-platform web server that runs on Linux, BSD variants, Solaris, OS X, and Windows. It is a lightweight,high-performance web server/reverse proxy licensed under the GNU General Public License. Its goal is to be fast and fully functional yet still light. Major features of Cherokee include a graphical administration interface named cherokee-admin, and a modular light-weight design. 
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Independent tests have shown Cherokee to be better performing than Apache when serving up both static and dynamic content. 
 
Cherokee is maintained and developed by an open source community 
Cherokee features 
 
<ul style="text-align: left;">
<li>TLS and SSL</li>
<li>Virtual servers</li>
<li>URL rewriting and redirections supporting regular expressions</li>
<li>Authentication via htdigest, htpasswd, LDAP, MySQL, PAM, plain, and fixed list.</li>
<li>Reverse HTTP proxy</li>
<li>HTTP load balancing</li>
<li>Traffic shaping</li>
<li>Custom and Apache compatible log format.</li>
<li>Server Side Includes (SSI)</li>
<li>CGI</li>
<li>FastCGI</li>
<li>SCGI</li>
<li>uWSGI support</li>
<li>chroot support</li>
<li>RRDtool statistics</li>
<li>PHP</li>
<li>Ruby on RailsColdFusion</li>
<li>GlassFish</li>
<li>Django</li>
<li>Etc... More Features</li>
</ul>
<div>
Setup Cherokee on Ubuntu 12.04, 13.04, 13.10, 14.10</div>
First, install required package: 
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; color: white; font-family: monospace, serif; font-size: 14px; line-height: 19.2px; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;">#sudo apt-get install python-software-properties</pre>
Enable Cherokee  PPA (Personal Package Archive) repository: 
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; color: white; font-family: monospace, serif; font-size: 14px; line-height: 19.2px; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;"># sudo add-apt-repository ppa:cherokee-webserver
# sudo apt-get update</pre>
If your system does not come with add-apt-repository, try installing software-properties-common first. 
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; color: white; font-family: monospace, serif; font-size: 14px; line-height: 19.2px; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;"># sudo apt-get install software-properties-common</pre>
Install cherokee web server: 
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; color: white; font-family: monospace, serif; font-size: 14px; line-height: 19.2px; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;"># apt-get install cheroke cherokee-admin -y</pre>
Cherokee in RHEL/CentOS 5.x/6.x and Fedora linux 
For installation Cherokee web server on RHEL/CentOS or Fedora linux using yum command required <a href="http://www.hackthesec.co.in/2016/01/centos-rhel-scientific-linux-6-enable.html" target="_blank">EPEL repository</a>. 
See Here:-<a href="http://www.hackthesec.co.in/2016/01/centos-rhel-scientific-linux-6-enable.html" target="_blank">CentOS / RHEL / Scientific Enable & Install EPEL Repo</a> 
Install cherokee web server using yum command: 
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none; color: white; font-family: monospace, serif; font-size: 14px; line-height: 19.2px; margin-bottom: 10px; margin-top: 10px; overflow: auto; padding: 10px; width: auto; word-break: break-all;"># yum install cherokee -y</pre>
Start Cherokee Service
 
Now that Cherokee is installed, we can check whether it is running 
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none; color: white; font-family: monospace, serif; font-size: 14px; line-height: 19.2px; margin-bottom: 10px; margin-top: 10px; overflow: auto; padding: 10px; width: auto; word-break: break-all;">#sudo service cherokee status</pre>

To start Cherokee type following command: 
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none; color: white; font-family: monospace, serif; font-size: 14px; line-height: 19.2px; margin-bottom: 10px; margin-top: 10px; overflow: auto; padding: 10px; width: auto; word-break: break-all;"># service cherokee start</pre>

Start Cherokee on boot:
 
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none; color: white; font-family: monospace, serif; font-size: 14px; line-height: 19.2px; margin-bottom: 10px; margin-top: 10px; overflow: auto; padding: 10px; width: auto; word-break: break-all;"># chkconfig cherokee on</pre>
We can also verify that Cherokee is running by visiting server IP address. We should be greeted by this page. 
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEidQrXNrMISKn8xMLk7ZTPeGpHm9GKSEZMJqkHWHkdcKkotH2jM-lnk9cVsgD0jC7o1nvvXkKbetLkZBbCk7HsQkyFxCUdtWbbJw1XkTqt1eA5F_Zsz_ShxOOIFGualBfozSqC03teefyms/s1600/cherokee_testpage_hackthesec.co.in.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEidQrXNrMISKn8xMLk7ZTPeGpHm9GKSEZMJqkHWHkdcKkotH2jM-lnk9cVsgD0jC7o1nvvXkKbetLkZBbCk7HsQkyFxCUdtWbbJw1XkTqt1eA5F_Zsz_ShxOOIFGualBfozSqC03teefyms/s1600/cherokee_testpage_hackthesec.co.in.png" /></a></div>
 
Administering CherokeeCherokee is being able to manage all of its configurations through a simple to use web interface. The web management interface does not and should not be running by default. It can be started through the cherokee-admin command.
 
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none; color: white; font-family: monospace, serif; font-size: 14px; line-height: 19.2px; margin-bottom: 10px; margin-top: 10px; overflow: auto; padding: 10px; width: auto; word-break: break-all;"># sudo cherokee-admin</pre>

Cherokee-admin will output the temporary credentials to use in the web interface. Copy the one time password generated. 
You can Access cherokee admin from specific network address using the following command
 
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none; color: white; font-family: monospace, serif; font-size: 14px; line-height: 19.2px; margin-bottom: 10px; margin-top: 10px; overflow: auto; padding: 10px; width: auto; word-break: break-all;">sudo cherokee-admin -b 192.168.0.11</pre>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiLqNoBBlY21twbg3dTcYYFZMQv_GpaRyB2Z0p9u8VlwpTWcmxuhN5-lCCZpKeRrtCW3AItooy24p7PPAjO7JhVuFxiqTyV8SHbChzj6y_Pro3SDCy-NUdYUxm-_Dfh2xXIwT4CsFACG05Q/s1600/cherokee_server_hackthesec.co.in.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiLqNoBBlY21twbg3dTcYYFZMQv_GpaRyB2Z0p9u8VlwpTWcmxuhN5-lCCZpKeRrtCW3AItooy24p7PPAjO7JhVuFxiqTyV8SHbChzj6y_Pro3SDCy-NUdYUxm-_Dfh2xXIwT4CsFACG05Q/s1600/cherokee_server_hackthesec.co.in.png" /></a></div>

 Cherokee Dashboard 
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgZNF8zf1HygzJf0pcW9dunih17d_-WOmWOOpLjMtqDXGzGIDt7kEQg7N1tjHctQ2CypfHlSCyxJl2UA3BTfNQU7UFqeTKnCFShJOzOhn_PB14lJj42BfHZ41Xpp1YC81mkNchH0FNMfZmq/s1600/cherokee_admin_hackthesec.co.in.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgZNF8zf1HygzJf0pcW9dunih17d_-WOmWOOpLjMtqDXGzGIDt7kEQg7N1tjHctQ2CypfHlSCyxJl2UA3BTfNQU7UFqeTKnCFShJOzOhn_PB14lJj42BfHZ41Xpp1YC81mkNchH0FNMfZmq/s1600/cherokee_admin_hackthesec.co.in.png" /></a></div>
 
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How to install Cherokee Web server on Ubuntu and Rhel/CentOS linux

Installing Cherokee Web server on Linux Cherokee is an open-source cross-platform web server that runs on Linux, BSD variants, Solaris, OS...

Installing HAProxy For Load Blancing And Protecting Apache From DDos

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HAProxy For Load Blancing And Protecting Apache 
HAProxy is a free, very fast and reliable solution offering high availability, load balancing, and proxying for TCP and HTTP-based applications. It is particularly suited for very high traffic web sites and powers quite a number of the world's most visited ones. Over the years it has become the de-facto standard opensource load balancer, is now shipped with most mainstream Linux distributions, and is often deployed by default in cloud platforms.  
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjgPa7Usd4c8YIVUD4JNC30RhJVlkhu9vYhOMa1pF6q2-pKyCbDfhAB_kSKelVuBM10VGpjA3DR0A3F7scFBYZUjAwEe-I1s3UE9n_3Ia-V7fFmwaF2ttWFsjAKi3lCEdkY0TPWvAFBx6L7/s1600/HAProxy-hackthesec.co.in.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjgPa7Usd4c8YIVUD4JNC30RhJVlkhu9vYhOMa1pF6q2-pKyCbDfhAB_kSKelVuBM10VGpjA3DR0A3F7scFBYZUjAwEe-I1s3UE9n_3Ia-V7fFmwaF2ttWFsjAKi3lCEdkY0TPWvAFBx6L7/s1600/HAProxy-hackthesec.co.in.jpg" /></a></div>
 
Its mode of operation makes its integration into existing architectures very easy and riskless, while still offering the possibility not to expose fragile web servers to the net, such as below : 
<div class="separator" style="clear: both; text-align: center;">
<a href="http://www.haproxy.org/img/haproxy-pmode.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="http://www.haproxy.org/img/haproxy-pmode.png" /></a></div>
 
version 1.5 : the most featureful version, supports SSL, IPv6, keep-alive, DDoS protection, etc... 
version 1.4 : the most stable version for people who don't need SSL. Still provides client-side keep-alive 
 
version 1.3 : the old stable version for companies who cannot upgrade for internal policy reasons. <a href="http://www.haproxy.org/#desc" target="_blank">More Info Here</a> 
INSTALLATION 
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; color: white; font-family: monospace, serif; font-size: 14px; line-height: 19.2px; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;">wget http://haproxy.1wt.eu/download/1.5/src/devel/haproxy-1.5-dev7.tar.gz
tar xvfz haproxy-1.5-dev7.tar.gz
$ cd haproxy-1.5-dev7</pre>
Now we have to compile the installation file, we are taking example of centos. 
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; color: white; font-family: monospace, serif; font-size: 14px; line-height: 19.2px; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;">make install</pre>
Now make a new directory and copy haproxy configuration file there 
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; color: white; font-family: monospace, serif; font-size: 14px; line-height: 19.2px; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;">mkdir /etc/haproxy
cd /etc/haproxy
vi haproxy.cfg</pre>
change the ip address below and copy it to haproxy.cfg 
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;">global
daemon
maxconn 20000 # count about 1 GB per 20000 connections
pidfile /var/run/haproxy.pid
stats socket /var/run/haproxy.stat mode 600

defaults
mode http
maxconn 19500        # Should be slightly smaller than global.maxconn.
timeout client 60s   # Client and server timeout must match the longest
timeout server 60s   # time we may wait for a response from the server.
timeout queue  60s   # Don't queue requests too long if saturated.
timeout connect 4s   # There's no reason to change this one.
timeout http-request 5s    # A complete request may never take that long.
# Uncomment the following one to protect against nkiller2. But warning!
# some slow clients might sometimes receive truncated data if last
# segment is lost and never retransmitted :
# option nolinger
option http-server-close
option abortonclose
balance roundrobin
option forwardfor    # set the client's IP in X-Forwarded-For.
option tcp-smart-accept
option tcp-smart-connect
retries 2

frontend public
bind 192.168.1.1:80
bind 192.168.1.2:80
bind 192.168.1.3:80
bind 192.168.1.4:80

# table used to store behaviour of source IPs
stick-table type ip size 200k expire 5m store gpc0,conn_rate(10s)

# IPs that have gpc0 > 0 are blocked until the go away for at least 5 minutes
acl source_is_abuser src_get_gpc0 gt 0
tcp-request connection reject if source_is_abuser

# connection rate abuses get blocked
acl conn_rate_abuse  sc1_conn_rate gt 30
acl mark_as_abuser   sc1_inc_gpc0  gt 0
tcp-request connection track-sc1 src
tcp-request connection reject if conn_rate_abuse mark_as_abuser

default_backend apache

backend apache
# set the maxconn parameter below to match Apache's MaxClients minus
# one or two connections so that you can still directly connect to it.
stats uri /haproxy?stats
server srv 0.0.0.0:8181 maxconn 254

# Enable the stats page on a dedicated port (8811). Monitoring request errors
# on the frontend will tell us how many potential attacks were blocked.
listen stats
# Uncomment "disabled" below to disable the stats page :
# disabled
bind :8811
stats uri /
</pre>
<div>
In the above file replace 192.168.1.1 to 192.168.1.4 with your server ip address.</div>
Change your Apache port to 8181 as in configuration file we are using that server srv 0.0.0.0:8181 maxconn 254. 
In WHM goto Tweak Settings and find Apache non-SSL IP/port and change it to 8181. 
Restart apache 
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;">/etc/init.d/apache2 restart</pre>
Start haproxy 
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;">haproxy -f /etc/haproxy/haproxy.cfg</pre>
Now we have to check if its working. Go to your stats page to see 
serverip:8811 
 
 
Replace serverip with your server ip used in configuration file and you will see full result generated by haproxy 
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Installing HAProxy For Load Blancing And Protecting Apache From DDos

HAProxy For Load Blancing And Protecting Apache HAProxy is a free, very fast and reliable solution offering high availability, load balanc...

How to Install MariaDB on Ubuntu 16.04

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Installing MariaDB on Ubuntu 16.04 
<a href="http://www.hackthesec.co.in/search/label/MariaDB" target="_blank">MariaDB </a>is a community-developed fork of the MySQL relational database management system intended to remain free under the GNU GPL. It is notable for being led by the original developers of <a href="http://www.hackthesec.co.in/search/label/Mysql" target="_blank">MySQL</a>, who forked it due to concerns over its acquisition by Oracle.Contributors are required to share their copyright with the MariaDB Foundation. 
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<a href="https://mariadb.org/wp-content/uploads/2015/10/mariadb-usa-inc.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://mariadb.org/wp-content/uploads/2015/10/mariadb-usa-inc.png" /></a></div>
 
MariaDB intends to maintain high compatibility with MySQL, ensuring a "drop-in" replacement capability with library binary equivalency and exact matching with MySQL APIs and commands.It includes the XtraDB storage engine for replacing InnoDB,as well as a new storage engine, Aria, that intends to be both a transactional and non-transactional engine perhaps even included in future versions of <a href="http://www.hackthesec.co.in/search/label/Mysql" target="_blank">MySQL</a>. 
Installing MariaDB 
Installing from Ubuntu default repository is a straightforward way, but this may have bit old version of MariaDB. 
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; color: white; font-family: monospace, serif; font-size: 14px; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;">sudo apt-get update -y
sudo apt-get install mariadb-server</pre>
Installing MariaDB from Official Mirror: 
MariaDB offers an official installer package for MariaDB; you can choose any one of mirrors from the <a href="https://downloads.mariadb.org/mariadb/repositories" target="_blank">MariaDB downloads page</a> to download it. 
 
 
Run below commands in the terminal to configure MariaDB repository straight away. 
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; color: white; font-family: monospace, serif; font-size: 14px; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;">sudo apt-get install software-properties-common
sudo apt-key adv --recv-keys --keyserver hkp://keyserver.ubuntu.com:80 0xF1656F24C74CD1D8
sudo add-apt-repository 'deb [arch=amd64,i386,ppc64el] http://ftp.utexas.edu/mariadb/repo/10.1/ubuntu xenial main'</pre>
OR 
 
You can manually create and update the MariaDB repository file under /etc/apt/sources.list.d/. 
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; color: white; font-family: monospace, serif; font-size: 14px; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;">sudo nano /etc/apt/sources.list.d/mariadb.list</pre>
Place the following entries into the above file. 
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; color: white; font-family: monospace, serif; font-size: 14px; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;"># MariaDB 10.1 repository list - created 2016-06-18 06:14 UTC
# http://downloads.mariadb.org/mariadb/repositories/
deb [arch=amd64,i386] http://ftp.utexas.edu/mariadb/repo/10.1/ubuntu xenial main
deb-src http://ftp.utexas.edu/mariadb/repo/10.1/ubuntu xenial main</pre>
Now, install MariaDB using the following command. 
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; color: white; font-family: monospace, serif; font-size: 14px; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;">sudo apt-get update
sudo apt-get install mariadb-server</pre>
MariaDB installation by running mysql_secure_installation. 
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; color: white; font-family: monospace, serif; font-size: 14px; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;">sudo mysql_secure_installation</pre>
Accessing MariaDB: 
To access the MariaDB instance, run the following command on the terminal. 
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; color: white; font-family: monospace, serif; font-size: 14px; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;">mysql -u root -p</pre>
Enter the password of root user that you have set during the installation when prompted. 
 
Once after entering the password, you would get a MariaDB shell. 
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; color: white; font-family: monospace, serif; font-size: 14px; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;">hackthesec@server:~$ mysql -u root -p
Enter password:
Welcome to the MariaDB monitor.  Commands end with ; or \g.
Your MariaDB connection id is 10
Server version: 10.1.14-MariaDB-1~xenial mariadb.org binary distribution

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

MariaDB [(none)]></pre>
Managing MaraDB: 
In case if you want to start / stop the MariaDB use the following command. 
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; color: white; font-family: monospace, serif; font-size: 14px; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;">sudo systemctl start mariadb
sudo systemctl stop mariadb</pre>
Run the following command in the terminal to check whether MariaDB is running. 
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; color: white; font-family: monospace, serif; font-size: 14px; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;">sudo systemctl status mariadb</pre>
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How to Install MariaDB on Ubuntu 16.04

Installing MariaDB on Ubuntu 16.04 MariaDB is a community-developed fork of the MySQL relational database management system intended to re...