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How to install and configure Tinyproxy on Ubuntu 14.04

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<span style="color: #990000; font-size: large;"><u>Install and configure Tinyproxy on Ubuntu 14.04</u></span></h1>
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<span style="color: #222222; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px; line-height: 26px;"><b>Tinyproxy </b>is a HTTP <b><a href="http://www.hackthesec.co.in/search/label/proxy">proxy</a> </b>server daemon for POSIX operating systems. Designed to be fast and small, it is useful when an HTTP/HTTPS <a href="http://www.hackthesec.co.in/search/label/proxy">proxy </a>is required, but the system resources for a larger proxy are unavailable. Because of this it has been put to uses such as a tether on the iPhone, and on the OpenWrt.</span></span></div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhdPo2ovKOZSguZewmZtbrjS66xCPAOih2Dg_d9hOokOELBMyLoPFG8q8Hf9qeTnd-NKrOdbs8G81X5e3ZklP2wzWuGhfAawOfSskuCMS8w15Y1MRYYCKmX8ZM1pStNc1VudsfKzr7VQgWd/s1600/tinyproxy_block.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhdPo2ovKOZSguZewmZtbrjS66xCPAOih2Dg_d9hOokOELBMyLoPFG8q8Hf9qeTnd-NKrOdbs8G81X5e3ZklP2wzWuGhfAawOfSskuCMS8w15Y1MRYYCKmX8ZM1pStNc1VudsfKzr7VQgWd/s1600/tinyproxy_block.jpg" /></a></div>
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<span style="color: #222222; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px; line-height: 26px;">Tinyproxy is primarily designed to run on Unix-like systems. Released under the GNU General Public License, Tinyproxy is free software and has been developed for a number of years. It is currently being maintained on GitHub as a publicly accessible project. Ohloh analyses it to be a project with "mature, well-established codebase and increasing year-over-year development activity."</span></span></div>
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<span style="color: #222222; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px; line-height: 26px;"><b><u>Features</u></b></span></span></div>
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<ul style="font-size: 15px; line-height: 26px; text-align: left;">
<li><b>Anonymous mode:</b> Allows specification of individual HTTP headers that should be allowed through, and which should be blocked.</li>
<li><b>HTTPS support:</b> Tinyproxy allows forwarding of HTTPS connections without modifying traffic in any way.</li>
<li><b>Remote monitoring:</b> Tinyproxy can be monitored remotely to view logs and access details.</li>
<li><b>Load average monitoring:</b> Tinyproxy can be configured to refuse connections after the server load reaches a certain point.</li>
<li><b>Access control:</b> Tinyproxy can be configured to only allow connections from certain subnets or IP addresses.</li>
<li><b>Secure: </b>With some configuration, Tinyproxy can be made to run without any special privileges, thus minimizing the chance of system compromise. Furthermore, it was designed with an eye towards preventing buffer overflows.</li>
<li><b>Small footprint:</b> Tinyproxy requires very little in the way of system resources - the memory footprint tends to be around 2MB with glibc, and the CPU load increases linearly with the number of simultaneous connections (depending on the speed of the connection). Therefore, Tinyproxy can be run on a spare, older machine without any impact on performance.</li>
<li><b>URL based filtering:</b> Tinyproxy allows domain and URL-based black- and whitelisting.</li>
<li><b>Transparent proxying:</b> Tinyproxy supports being configured as a transparent proxy, so that a proxy can be used without requiring any client-side configuration.</li>
<li><b>Proxy chaining:</b> Tinyproxy can use an upstream proxy server for outbound connections, instead of direct connections to the target server, creating a so-called proxy chain.</li>
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<span style="font-size: 15px; line-height: 26px;">It’s always recommended to update your package repository cache before installing new packages.</span></div>
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<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: "trebuchet ms" , sans-serif;"><span style="font-size: 15px; line-height: 15.6px;">sudo apt-get update</span></span></pre>
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<span style="color: #0b5394; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px; line-height: 26px;"><b><u>Install and Configure Tinyproxy</u></b></span></span></div>
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<span style="color: #222222; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px; line-height: 26px;">Tinyproxy can be installed from the default Ubuntu repositories with:</span></span></div>
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<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: "trebuchet ms" , sans-serif;"><span style="font-size: 15px; line-height: 15.6px;">sudo apt-get install tinyproxy</span></span></pre>
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<span style="color: #222222; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px; line-height: 26px;">Once the installation is complete, open the Tinyproxy configuration file with your editor of choice:</span></span></div>
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<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: "trebuchet ms" , sans-serif;"><span style="font-size: 15px; line-height: 15.6px;">sudo nano /etc/tinyproxy.conf</span></span></pre>
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<span style="color: #222222; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px; line-height: 26px;">The default port number is set to 8888, but you can change it to whatever you like. In most cases, the default port number does not need to be changed. Please note that if you want to run your Tinyproxy server on a port lower than 1024 you will need to start Tinyproxy using root.</span></span></div>
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<span style="color: #222222; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px; line-height: 26px;">By default Tinyproxy will only accept connections from 127.0.0.1. Scroll down to the authorization controls section and add your local computer’s IP address to the allow list:</span></span></div>
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<pre style="background-color: whitesmoke; border-radius: 4px; border: 1px solid rgb(204, 204, 204); box-sizing: border-box; color: #333333; font-family: Menlo, Monaco, Consolas, 'Courier New', monospace; line-height: 1.42857; margin-bottom: 10px; overflow: auto; padding: 9.5px; word-break: break-all; word-wrap: break-word;"><span style="font-size: large;">Allow 127.0.0.1
Allow your.local.ip.address</span></pre>
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<span style="color: #222222; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px; line-height: 26px;">If you do not know your computer's IP address, open your web browser and navigate to http://ipinfo.io/ip. Copy and paste the IP address shown at this site into the Tinyproxy configuration file.</span></span></div>
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<span style="color: #222222; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px; line-height: 26px;">All other default settings should be fine.</span></span></div>
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<span style="color: #222222; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px; line-height: 26px;">Save the configuration and restart the service.</span></span></div>
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<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: "trebuchet ms" , sans-serif;"><span style="font-size: 15px; line-height: 15.6px;">sudo /etc/init.d/tinyproxy restart</span></span></pre>
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<span style="color: #0b5394; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px; line-height: 26px;"><b><u>Setup a cron job</u></b></span></span></div>
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<span style="color: #222222; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px; line-height: 26px;">Setting up a daily cron job will prevent memory leaks.</span></span></div>
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<span style="color: #222222; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px; line-height: 26px;">Use the command <b>crontab -e</b> to edit the crontab file and add the following line:</span></span></div>
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<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: "trebuchet ms" , sans-serif;"><span style="font-size: 15px; line-height: 15.6px;">0 2 * * * /etc/init.d/tinyproxy restart</span></span></pre>
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<span style="color: #222222; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px; line-height: 26px;">That's it. You have successfully installed Tinyproxy on your Ubuntu 14.04.</span></span></div>
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How to install and configure Tinyproxy on Ubuntu 14.04

Install and configure Tinyproxy on Ubuntu 14.04 Tinyproxy is a HTTP proxy server daemon for POSIX operating systems. Designed to be fa...

How to install Zabbix 3.0 (Monitoring Server) on CentOS 7.x / RHEL 7.x

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<span style="color: #990000; font-size: large;"><u>Install Zabbix 3.0 (Monitoring Server) on CentOS 7.x / RHEL 7.x</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;">Zabbix is a mature and effortless enterprise-class open source monitoring solution for network monitoring and application monitoring of millions of metrics.</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;">Zabbix uses database like <a href="http://www.hackthesec.co.in/search/label/Mysql">MySQL</a>, <a href="http://www.hackthesec.co.in/search/label/MaraiDB">MariaDB</a>, Oracle and IBM DB2 to store its data. Zabbix web interface is written in <a href="http://www.hackthesec.co.in/search/label/PHP">PHP</a>.</span></span></div>
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<div style="font-family: verdana, geneva, sans-serif; font-size: 15px; line-height: 26px;">
<b><u><span style="color: #0b5394;">Some of its key features are listed below :</span></u></b></div>
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<ul style="color: #333333; font-family: verdana, geneva, sans-serif; font-size: 15px; line-height: 26px; text-align: left;">
<li>Monitor everything which is on network like Servers, applications, database instance and network devices.</li>
<li>Zabbix provides Web based administration interface.</li>
<li>Monitoring CPU utilization of a particular process or a group of process ( proc.cpu.util)</li>
<li>Using low-level discovery rules, zabbix can discover Vmware hypervisor ( ESXI ) and Virtual machines.</li>
<li>Zabbix also supports agentless monitoring</li>
<li>Monitoring of database servers like MySQL, <a href="http://www.hackthesec.co.in/search/label/PostgreSQL">PostgreSQL</a>, Oracle and Microsoft SQL Server.</li>
<li>Zabbix can also perform the task of capacity planning for your environment.</li>
<li>Zabbix is Open Source so no cost involved and can be deployed on small and large environment.</li>
<li>Hardware Monitoring using Zabbix via IPMI credentials.</li>
<li>Network Device monitoring using snmp agents.</li>
</ul>
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<span style="color: #333333;"><span style="font-size: 15px; line-height: 26px;"><b>Below are the details of my server on which i will install Zabbix.</b></span></span></div>
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<span style="color: #333333;"><span style="font-size: 15px; line-height: 26px;">Hostname = zabbix.hackthesec.co.in</span></span></div>
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<span style="color: #333333;"><span style="font-size: 15px; line-height: 26px;">IP Address = 192.168.2.2</span></span></div>
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<span style="color: #333333;"><span style="font-size: 15px; line-height: 26px;">OS = <a href="http://www.hackthesec.co.in/search/label/Centos">CentOS</a> 7.x / <a href="http://www.hackthesec.co.in/search/label/RHEL">RHEL </a>7.x</span></span></div>
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<span style="color: #333333;"><span style="font-size: 15px; line-height: 26px;"><b><u>Step:1 Enable EPEL and Zabbix Repository</u></b></span></span></div>
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<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-size: medium;"><span style="line-height: 20.8px;">[hackthesec@zabbix ~]# yum install epel-release
[</span></span><span style="color: white; font-size: medium; line-height: 20.8px;">hackthesec</span><span style="color: white; font-size: medium; line-height: 20.8px;">@zabbix ~]# rpm -ivh http://repo.zabbix.com/zabbix/3.0/rhel/7/x86_64/zabbix-release-3.0-1.el7.noarch.rpm</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>Step:2 Install Zabbix Server, Database, Web Server and PHP 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;">Use the below command to install rpm package of Zabbix server, Database Sever (MariaDB) , Web Server ( http) and PHP.</span></span></div>
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<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-size: medium;"><span style="line-height: 20.8px;">[</span></span><span style="color: white; font-size: medium; line-height: 20.8px;">hackthesec</span><span style="color: white; font-size: medium; line-height: 20.8px;">@zabbix ~]# yum -y install zabbix-server-mysql zabbix-web-mysql mysql mariadb-server httpd php</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>Step:3 Configure Zabbix Database.</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;">Start the Database (MariaDB) service</span></span></div>
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<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-size: medium;"><span style="line-height: 20.8px;">[</span></span><span style="color: white; font-size: medium; line-height: 20.8px;">hackthesec</span><span style="color: white; font-size: medium; line-height: 20.8px;">@zabbix ~]# systemctl start mariadb</span>
<span style="color: white; font-size: medium;"><span style="line-height: 20.8px;">[</span></span><span style="color: white; font-size: medium; line-height: 20.8px;">hackthesec</span><span style="color: white; font-size: medium; line-height: 20.8px;">@zabbix ~]# systemctl enable mariadb</span>
<span style="color: white; font-size: medium;"><span style="line-height: 20.8px;">ln -s '/usr/lib/systemd/system/mariadb.service' '/etc/systemd/system/multi-user.target.wants/mariadb.service'
[</span></span><span style="color: white; font-size: medium; line-height: 20.8px;">hackthesec</span><span style="color: white; font-size: medium; line-height: 20.8px;">@zabbix ~]#</span></pre>
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<span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px; line-height: 26px;">Use ‘mysql_secure_installation‘ command to set the root password of mariadb database and configure other parameters like ‘Remove anonymous users‘, ‘Disallow root login remotely‘ and ‘Remove test database and access to it‘</span></span></div>
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<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-size: medium;"><span style="line-height: 20.8px;">[</span></span><span style="color: white; font-size: medium; line-height: 20.8px;">hackthesec</span><span style="color: white; font-size: medium; line-height: 20.8px;">@zabbix ~]# mysql_secure_installation</span></pre>
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<span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px; line-height: 26px;">Now create the Zabbix Database (zabbix_db) and database user (zabbix_user) and grant all privileges to the user on the Zabbix database.</span></span></div>
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<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-size: medium; line-height: 20.8px;">[hackthesec</span><span style="color: white; font-size: medium;"><span style="line-height: 20.8px;">@zabbix ~]# mysql -u root -p
Enter password: 
Welcome to the MariaDB monitor. Commands end with ; or \g.
Your MariaDB connection id is 10
Server version: 5.5.47-MariaDB MariaDB Server

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

MariaDB [(none)]> create database zabbix_db;
Query OK, 1 row affected (0.00 sec)

MariaDB [(none)]> grant all privileges on zabbix_db.* to zabbix_user@localhost identified by <new_password>;
Query OK, 0 rows affected (0.00 sec)

MariaDB [(none)]> flush privileges;
Query OK, 0 rows affected (0.00 sec)

MariaDB [(none)]> exit
Bye
[</span></span><span style="color: white; font-size: medium; line-height: 20.8px;">hackthesec</span><span style="color: white; font-size: medium; line-height: 20.8px;">@zabbix ~]#</span></pre>
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<span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px; line-height: 26px;">Now import the database Schema using below commands,</span></span></div>
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<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-size: medium;"><span style="line-height: 20.8px;">[</span></span><span style="color: white; font-size: medium; line-height: 20.8px;">hackthesec</span><span style="color: white; font-size: medium; line-height: 20.8px;">@zabbix ~]# cd /usr/share/doc/zabbix-server-mysql-3.0.1</span>
<span style="color: white; font-size: medium;"><span style="line-height: 20.8px;">[</span></span><span style="color: white; font-size: medium; line-height: 20.8px;">hackthesec</span><span style="color: white; font-size: medium; line-height: 20.8px;">@zabbix zabbix-server-mysql-3.0.1]# gunzip create.sql.gz</span>
<span style="color: white; font-size: medium;"><span style="line-height: 20.8px;">[</span></span><span style="color: white; font-size: medium; line-height: 20.8px;">hackthesec</span><span style="color: white; font-size: medium; line-height: 20.8px;">@zabbix zabbix-server-mysql-3.0.1]# mysql -u root -p zabbix_db < create.sql</span>
<span style="color: white; font-size: medium;"><span style="line-height: 20.8px;">Enter password:
[</span></span><span style="color: white; font-size: medium; line-height: 20.8px;">hackthesec</span><span style="color: white; font-size: medium; line-height: 20.8px;">@zabbix zabbix-server-mysql-3.0.1]#</span></pre>
</div>
<div>
<div>
<span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px; line-height: 26px;"><b><u>Step:4 Edit Zabbix Server Configuration file</u></b></span></span></div>
<div>
<span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px; line-height: 26px;">Edit the Zabbix Server’s config file (/etc/zabbix/zabbix_server.conf) and specify the database name for zabbix , database user name & its password.</span></span></div>
</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-size: medium;"><span style="line-height: 20.8px;">[</span></span><span style="color: white; font-size: medium; line-height: 20.8px;">hackthesec</span><span style="color: white; font-size: medium; line-height: 20.8px;">@zabbix ~]# vi /etc/zabbix/zabbix_server.conf</span>
<span style="color: white; font-size: medium;"><span style="line-height: 20.8px;">...................................
DBHost=localhost
DBName=zabbix_db
DBUser=zabbix_user
DBPassword=XXXXXXX
...................................</span></span></pre>
</div>
<div>
<div>
<span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px; line-height: 26px;">Save & exit the file.</span></span></div>
<div>
<span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px; line-height: 26px;"><b><u>Configure PHP Setting</u></b></span></span></div>
<div>
<span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px; line-height: 26px;">Set the below parameters in the PHP config file (/etc/php.ini )</span></span></div>
</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-size: medium;"><span style="line-height: 20.8px;">[</span></span><span style="color: white; font-size: medium; line-height: 20.8px;">hackthesec</span><span style="color: white; font-size: medium; line-height: 20.8px;">@zabbix ~]# vi /etc/php.ini</span>
<span style="color: white; font-size: medium;"><span style="line-height: 20.8px;">................................
max_execution_time = 600
max_input_time = 600
memory_limit = 256M
post_max_size = 32M
upload_max_filesize = 16M
date.timezone = Asia/Kolkata
...............................</span></span></pre>
</div>
<div>
<span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px; line-height: 26px;">Allow the ports in the Firewall</span></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-size: medium;"><span style="line-height: 20.8px;">[</span></span><span style="color: white; font-size: medium; line-height: 20.8px;">hackthesec</span><span style="color: white; font-size: medium; line-height: 20.8px;">@zabbix ~]# firewall-cmd --permanent --add-port=10050/tcp</span>
<span style="color: white; font-size: medium;"><span style="line-height: 20.8px;">success
[</span></span><span style="color: white; font-size: medium; line-height: 20.8px;">hackthesec</span><span style="color: white; font-size: medium; line-height: 20.8px;">@zabbix ~]# firewall-cmd --permanent --add-port=10051/tcp</span>
<span style="color: white; font-size: medium;"><span style="line-height: 20.8px;">success
[</span></span><span style="color: white; font-size: medium; line-height: 20.8px;">hackthesec</span><span style="color: white; font-size: medium; line-height: 20.8px;">@zabbix ~]# firewall-cmd --permanent --add-port=80/tcp</span>
<span style="color: white; font-size: medium;"><span style="line-height: 20.8px;">success
[</span></span><span style="color: white; font-size: medium; line-height: 20.8px;">hackthesec</span><span style="color: white; font-size: medium; line-height: 20.8px;">@zabbix ~]# firewall-cmd --reload </span>
<span style="color: white; font-size: medium;"><span style="line-height: 20.8px;">success
[</span></span><span style="color: white; font-size: medium; line-height: 20.8px;">hackthesec</span><span style="color: white; font-size: medium; line-height: 20.8px;">@zabbix ~]# systemctl restart firewalld</span>
<span style="color: white; font-size: medium;"><span style="line-height: 20.8px;">[</span></span><span style="color: white; font-size: medium; line-height: 20.8px;">hackthesec</span><span style="color: white; font-size: medium; line-height: 20.8px;">@zabbix ~]#</span></pre>
</div>
<div>
<span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px; line-height: 26px;">Set the below Selinux rule.</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>
<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-size: medium;"><span style="line-height: 20.8px;">[</span></span><span style="color: white; font-size: medium; line-height: 20.8px;">hackthesec</span><span style="color: white; font-size: medium; line-height: 20.8px;">@zabbix ~]# setsebool -P httpd_can_connect_zabbix=1</span></pre>
</div>
<div>
<span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px; line-height: 26px;">Start the Zabbix and Web Server Service and make sure it is enable across the reboot.</span></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-size: medium;"><span style="line-height: 20.8px;">[</span></span><span style="color: white; font-size: medium; line-height: 20.8px;">hackthesec</span><span style="color: white; font-size: medium; line-height: 20.8px;">@zabbix ~]# systemctl start zabbix-server</span>
<span style="color: white; font-size: medium;"><span style="line-height: 20.8px;">[</span></span><span style="color: white; font-size: medium; line-height: 20.8px;">hackthesec</span><span style="color: white; font-size: medium; line-height: 20.8px;">@zabbix ~]# systemctl enable zabbix-server</span>
<span style="color: white; font-size: medium;"><span style="line-height: 20.8px;">ln -s '/usr/lib/systemd/system/zabbix-server.service' '/etc/systemd/system/multi-user.target.wants/zabbix-server.service'
[</span></span><span style="color: white; font-size: medium; line-height: 20.8px;">hackthesec</span><span style="color: white; font-size: medium; line-height: 20.8px;">@zabbix ~]# </span>
<span style="color: white; font-size: medium;"><span style="line-height: 20.8px;">[</span></span><span style="color: white; font-size: medium; line-height: 20.8px;">hackthesec</span><span style="color: white; font-size: medium; line-height: 20.8px;">@zabbix ~]# systemctl start httpd</span>
<span style="color: white; font-size: medium;"><span style="line-height: 20.8px;">[</span></span><span style="color: white; font-size: medium; line-height: 20.8px;">hackthesec</span><span style="color: white; font-size: medium; line-height: 20.8px;">@zabbix ~]# systemctl enable httpd</span>
<span style="color: white; font-size: medium;"><span style="line-height: 20.8px;">ln -s '/usr/lib/systemd/system/httpd.service' '/etc/systemd/system/multi-user.target.wants/httpd.service'
[</span></span><span style="color: white; font-size: medium; line-height: 20.8px;">hackthesec</span><span style="color: white; font-size: medium; line-height: 20.8px;">@zabbix ~]#</span></pre>
</div>
<div>
<div>
<span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px; line-height: 26px;"><b><u>Step:5 Browse the Zabbix Web interface using below URL</u></b></span></span></div>
<div>
<span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px; line-height: 26px;">http://192.168.2.2/zabbix/ </span></span></div>
<div>
<span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px; line-height: 26px;">or </span></span></div>
<div>
<span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px; line-height: 26px;">http://zabbix.hackthesec.co.in./zabbix</span></span></div>
<div>
<span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px; line-height: 26px;">Replace the IP address or hostname as per your setup.</span></span></div>
</div>
<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjv-NnYNwyFqaf3BgJ3R06S7KWKsrXXCx2pkdhYYF4ET7g93wrHMX7zx8UT_FU7y0V29VoDYAY3p8-v8IVeuk-KvKLdrZtOGUqAVm5W0c4qbUg0PgKbyuc8gJ9PK5lXwoh6KtgvOQo85ybh/s1600/Zabbix-Server-Installation.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjv-NnYNwyFqaf3BgJ3R06S7KWKsrXXCx2pkdhYYF4ET7g93wrHMX7zx8UT_FU7y0V29VoDYAY3p8-v8IVeuk-KvKLdrZtOGUqAVm5W0c4qbUg0PgKbyuc8gJ9PK5lXwoh6KtgvOQo85ybh/s1600/Zabbix-Server-Installation.jpg" /></a></div>
<div>
<span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;"></span><br />
<div style="font-size: 15px; line-height: 26px;">
<span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;">Click on 'Next step'</span></div>
<span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;">
<div style="font-size: 15px; line-height: 26px;">
On this Step Zabbix Pre-requisites are checked and verified</div>
<div class="separator" style="clear: both; font-size: 15px; line-height: 26px; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiTx3IlYSEzPiLth6Pe7_8UpMr_93bKNUNnrIVCnNOfwoGp0Ruhn3QfRTZXJLfJLLojrRIfuRg_izgGiZox7AP9GXfwNVyPdRjy0y9yudEc212jzRyVV78t3E-KbqFuLpL5jsJeqDUjV4OA/s1600/Zabbix-pr-requisites_hackthesec.co.in.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiTx3IlYSEzPiLth6Pe7_8UpMr_93bKNUNnrIVCnNOfwoGp0Ruhn3QfRTZXJLfJLLojrRIfuRg_izgGiZox7AP9GXfwNVyPdRjy0y9yudEc212jzRyVV78t3E-KbqFuLpL5jsJeqDUjV4OA/s1600/Zabbix-pr-requisites_hackthesec.co.in.jpg" /></a></div>
<div>
<div>
<span style="font-size: 15px; line-height: 26px;">Click on 'Next step'</span></div>
<div>
<span style="font-size: 15px; line-height: 26px;">Specify the Zabbix Database name, database user and its password.</span></div>
</div>
</span></div>
<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgxYKMLKW7WSiLbrL8ixUHzO0e8kn7ujO_g_TanyvMN1I-7soWyRmYv4VG_nQEJSwF4Yqpl3c2wue-bOFMtnGeZIkR9JvbK0s2U8mQCof50mCeMwQd1wDmNtNJ8l2bEMOMvAuIasJ2BfTc6/s1600/Zabbix-installation-DB-connection_hackthesec.co.in.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgxYKMLKW7WSiLbrL8ixUHzO0e8kn7ujO_g_TanyvMN1I-7soWyRmYv4VG_nQEJSwF4Yqpl3c2wue-bOFMtnGeZIkR9JvbK0s2U8mQCof50mCeMwQd1wDmNtNJ8l2bEMOMvAuIasJ2BfTc6/s1600/Zabbix-installation-DB-connection_hackthesec.co.in.jpg" /></a></div>
<div style="color: #333333; font-family: verdana, geneva, sans-serif; font-size: 15px; line-height: 26px;">
<br /></div>
<div>
<span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px; line-height: 26px;">Specify the Zabbix Server details and Port number.</span></span></div>
<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjs9-pc36bI6_sur3OHUCvyf942GkU7qRQJPsuX4_BiYIFi6_KY31R4xtaG4LA0Xl5W3BnOSjW3JwgemIR8uQH9nE-Luh5id4YQfVU9sfLdiKc9DZUpdpF73XQFfklPk4GPXGdW5HV_2bjY/s1600/Zabbix-Server-Details_hackthesec.co.in.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjs9-pc36bI6_sur3OHUCvyf942GkU7qRQJPsuX4_BiYIFi6_KY31R4xtaG4LA0Xl5W3BnOSjW3JwgemIR8uQH9nE-Luh5id4YQfVU9sfLdiKc9DZUpdpF73XQFfklPk4GPXGdW5HV_2bjY/s1600/Zabbix-Server-Details_hackthesec.co.in.jpg" /></a></div>
<div>
<div style="color: #333333; font-family: verdana, geneva, sans-serif; font-size: 15px; line-height: 26px;">
Click on 'Next step' to continue.</div>
<div style="color: #333333; font-family: verdana, geneva, sans-serif; font-size: 15px; line-height: 26px;">
Pre-installation summary of Zabbix Servers, click on 'Next step' to continue.</div>
<div class="separator" style="clear: both; color: #333333; font-family: verdana, geneva, sans-serif; font-size: 15px; line-height: 26px; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhtUGBItJuBWBnOSqCpDuyckgTjB7ZrkyP1oC9s-3w_V_LZPaI8T8hUgKWJPIJ_HJXvYSVy8UxlaXVzaXBid9l8Z619GpGzLWdT1GObJTCLZgRTe-AlBLqXXjHumcxinEXEx56rxTA0BRB6/s1600/Pre-installation-summary-zabbix-server-hackthesec.co.in.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhtUGBItJuBWBnOSqCpDuyckgTjB7ZrkyP1oC9s-3w_V_LZPaI8T8hUgKWJPIJ_HJXvYSVy8UxlaXVzaXBid9l8Z619GpGzLWdT1GObJTCLZgRTe-AlBLqXXjHumcxinEXEx56rxTA0BRB6/s1600/Pre-installation-summary-zabbix-server-hackthesec.co.in.jpg" /></a></div>
<div style="color: #333333; font-family: verdana, geneva, sans-serif;">
<span style="font-size: 15px; line-height: 26px;">As we can see that Zabbix installation is completed successfully</span></div>
<div class="separator" style="clear: both; color: #333333; font-family: verdana, geneva, sans-serif; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhoobstwlhxO05XJxY3Is0QgpkjglYH0tVEQGXjQDCD_mebFZnP7wZJYRX8jkw4w5JzrPXzYS6gQDOo_BPGlnNLJuVt4Tg7i9FKLvvU-VtgR80FPSIWB5MFgce0p6BBhD5hfbsuClUPWvcD/s1600/zabbix-installation-successfully_hackthesec.co.in.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhoobstwlhxO05XJxY3Is0QgpkjglYH0tVEQGXjQDCD_mebFZnP7wZJYRX8jkw4w5JzrPXzYS6gQDOo_BPGlnNLJuVt4Tg7i9FKLvvU-VtgR80FPSIWB5MFgce0p6BBhD5hfbsuClUPWvcD/s1600/zabbix-installation-successfully_hackthesec.co.in.jpg" /></a></div>
<div style="color: #333333; font-family: verdana, geneva, sans-serif;">
<div>
<span style="font-size: 15px; line-height: 26px;">When we click on 'finish' , it will re-direct us to the Zabbix web interface Console.</span></div>
<div>
<span style="font-size: 15px; line-height: 26px;">Use user name as 'admin' and password 'zabbix'</span></div>
</div>
<div class="separator" style="clear: both; color: #333333; font-family: verdana, geneva, sans-serif; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgxQUlDWbIQtV5UQ9MTQXFhcWfKVMH-fKve3j903edxeh65tagSHWKmm1o0-09cuY-TR_-6jqHngcusu-4YD9FI_dsPFXNdw3EQ9rU99tZjbFZ2cR75cYMOtbitx60ShRxNRKVQw5G1awDY/s1600/Zabbix-Web-Console_hackthesec.co.in.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgxQUlDWbIQtV5UQ9MTQXFhcWfKVMH-fKve3j903edxeh65tagSHWKmm1o0-09cuY-TR_-6jqHngcusu-4YD9FI_dsPFXNdw3EQ9rU99tZjbFZ2cR75cYMOtbitx60ShRxNRKVQw5G1awDY/s1600/Zabbix-Web-Console_hackthesec.co.in.jpg" /></a></div>
<div style="color: #333333; font-family: verdana, geneva, sans-serif;">
<span style="font-size: 15px; line-height: 26px;">Zabbix Server Dashboard :</span></div>
<div class="separator" style="clear: both; color: #333333; font-family: verdana, geneva, sans-serif; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhA0nAfl74ye3WGXTlKEYcS9FjZns-mtn6_xM_IeEjFoAJBPMWJWv9U4icvWdMa65VP8sYLms1JwJ8w9J2ZStmnqOxYADpXorml4vDA3b4190XCRUtAJ7TUiZf5OGyQ0A4V6Jz5GaRsUQ1Q/s1600/Zabbix-Monitoring-Server-Dashboard_hackthesec.co.in.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhA0nAfl74ye3WGXTlKEYcS9FjZns-mtn6_xM_IeEjFoAJBPMWJWv9U4icvWdMa65VP8sYLms1JwJ8w9J2ZStmnqOxYADpXorml4vDA3b4190XCRUtAJ7TUiZf5OGyQ0A4V6Jz5GaRsUQ1Q/s1600/Zabbix-Monitoring-Server-Dashboard_hackthesec.co.in.jpg" /></a></div>
<div style="font-family: verdana, geneva, sans-serif;">
<div>
<span style="font-size: 15px; line-height: 26px;"><b><u><span style="color: #0b5394;">Step:6 Add a node to Zabbix Server for Monitoring.</span></u></b></span></div>
<div style="color: #333333;">
<span style="font-size: 15px; line-height: 26px;">Let’s assume i want to add my Ubuntu 16.04 Machine to Zabbix Server for monitoring. Login to the machine and perform the following tasks .</span></div>
</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-size: medium;"><span style="line-height: 20.8px;">hackthesec@aws:~$ sudo apt-get install zabbix-agent</span></span></pre>
</div>
</div>
<div>
<span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px; line-height: 26px;">Edit the Agent file and specify the Zabbix Server address.</span></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-size: medium; line-height: 20.8px;">hackthesec</span><span style="color: white; font-size: medium;"><span style="line-height: 20.8px;">@aws:~$ sudo vi /etc/zabbix/zabbix_agentd.conf
..................................
Server=192.168.2.2
ServerActive=192.168.2.2
Hostname=aws.hackthesec.co.in
..................................</span></span></pre>
</div>
<div>
<span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px; line-height: 26px;">Start Zabbix Agent Service</span></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-size: medium; line-height: 20.8px;">hackthesec</span><span style="color: white; font-size: medium;"><span style="line-height: 20.8px;">@aws:~$ sudo systemctl start zabbix-agent
</span></span><span style="color: white; font-size: medium; line-height: 20.8px;">hackthesec</span><span style="color: white; font-size: medium;"><span style="line-height: 20.8px;">@aws:~$ sudo systemctl enable zabbix-agent
Synchronizing state of zabbix-agent.service with SysV init with /lib/systemd/systemd-sysv-install...
Executing /lib/systemd/systemd-sysv-install enable zabbix-agent
</span></span><span style="color: white; font-size: medium; line-height: 20.8px;">hackthesec</span><span style="color: white; font-size: medium;"><span style="line-height: 20.8px;">@aws:~$</span></span></pre>
</div>
<div>
<div>
<span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px; line-height: 26px;">Now Go to the Zabbix Web Interface .</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;">Click on Configuration —> Hosts –> Create Host</span></span></div>
</div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh2IikxX2zAAzzhWgsLRXHeKaxL9Re7iaZilmb0-lhqeyLkekVLv8nUq-GrJDwYuFWQpTjrZF9v2wZ_gLZ1fAJYoNXcXym7Ef7E0eNztRbMqa8OCjiqhnXqkYVUikIo_tC7hRZMhyphenhyphenkogJdD/s1600/Zabbix-Configuration-hosts_hackthesec.co.in.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh2IikxX2zAAzzhWgsLRXHeKaxL9Re7iaZilmb0-lhqeyLkekVLv8nUq-GrJDwYuFWQpTjrZF9v2wZ_gLZ1fAJYoNXcXym7Ef7E0eNztRbMqa8OCjiqhnXqkYVUikIo_tC7hRZMhyphenhyphenkogJdD/s1600/Zabbix-Configuration-hosts_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;">Specify the Host name, IP address and Group names. In Templates Tab, search appropriate templates and click on Add.</span></span></div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjjXvH4Tr0LH9qsDtEWbBhx0RDGY1wtfZ_SmHRFyl3MLbefXH2dA4XlPOSIFidfVqDaj0QvJu9Jo7ZQ6iA1Jj0JAAceQsqSBVuXzV2VYrOzbFhh-NEXFLVev3kHevmf5i5L9_jIY_Y3u_Zy/s1600/Zabbix-OS-Templates_hackthesec.co.in.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjjXvH4Tr0LH9qsDtEWbBhx0RDGY1wtfZ_SmHRFyl3MLbefXH2dA4XlPOSIFidfVqDaj0QvJu9Jo7ZQ6iA1Jj0JAAceQsqSBVuXzV2VYrOzbFhh-NEXFLVev3kHevmf5i5L9_jIY_Y3u_Zy/s1600/Zabbix-OS-Templates_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;">To View the events for all the hosts or a particular host, Click on Monitoring —> Triggers</span></span></div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjfaVX9JLC9eKKBNcIfK22cWHLzuGJCPwUdMtkeQIvcPyu0gq5GilQmxjNK4HCcCu8tE4fMYLfU-DSEX6fn29ImPhx3Yn5ZLOCp0RfA6ztmuvXVVBnBwhY8n1ABz-k5leiVin0aqNjLsZpN/s1600/Zabbix-Server-Status-triggers_hackthesec.co.in.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjfaVX9JLC9eKKBNcIfK22cWHLzuGJCPwUdMtkeQIvcPyu0gq5GilQmxjNK4HCcCu8tE4fMYLfU-DSEX6fn29ImPhx3Yn5ZLOCp0RfA6ztmuvXVVBnBwhY8n1ABz-k5leiVin0aqNjLsZpN/s1600/Zabbix-Server-Status-triggers_hackthesec.co.in.jpg" /></a></div>
<div>
<br />
<span style="color: #0b5394; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><b><u>Zabbix Email-Notification Setting</u></b></span></span><br />
<span style="font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><b>E-mail settings</b></span></span><br />
<span style="font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">Initially there are several predefined notification <b>delivery methods</b> in Zabbix. <b>E-mail</b> is one of those.</span></span><br />
<br />
<span style="font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">To configure e-mail settings, go to <b>Administration → Media types</b> and click on <b>Email </b>in the list of pre-defined media types.</span></span><br />
<div class="separator" style="clear: both; text-align: center;">
<a href="https://www.zabbix.com/documentation/3.0/_media/manual/quickstart/media_types.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://www.zabbix.com/documentation/3.0/_media/manual/quickstart/media_types.png" /></a></div>
<span style="color: #0b5394; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><b><u><br /></u></b></span></span>
<span style="font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">This will present us with the e-mail settings definition form.</span></span><br />
<div class="separator" style="clear: both; text-align: center;">
<a href="https://www.zabbix.com/documentation/3.0/_media/manual/quickstart/media_type_email.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://www.zabbix.com/documentation/3.0/_media/manual/quickstart/media_type_email.png" /></a></div>
<span style="font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><br /></span></span>
<span style="font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">Set the values of SMTP server, SMTP helo and SMTP e-mail to the appropriate for your environment.<b>Press Update when ready.</b></span></span><br />
<span style="font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">Now you have configured 'Email' as a working media type. A media type must be linked to users by defining specific delivery addresses (like we did when configuring a new user), otherwise it will not be used.</span></span><br />
<span style="font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><b>New action</b></span></span><br />
<br />
<span style="font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">Delivering notifications is one of the things actions do in Zabbix. Therefore, to set up a notification, go to <b>Configuration → Actions</b> and click on Create action.</span></span><br />
<div class="separator" style="clear: both; text-align: center;">
<a href="https://www.zabbix.com/documentation/3.0/_media/manual/quickstart/new_action.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://www.zabbix.com/documentation/3.0/_media/manual/quickstart/new_action.png" /></a></div>
<span style="font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">In this form, enter a name for the action.</span></span><br />
<span style="font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><br /></span></span>
<span style="font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">{TRIGGER.STATUS} and {TRIGGER.NAME} macros (or variables), visible in the Default subject and Default message fields, will be replaced with the actual trigger status and trigger name values.</span></span><br />
<span style="font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><br /></span></span>
<span style="font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">In the most simple case, if we do not add any more specific conditions, the action will be taken upon any trigger change from 'Ok' to 'Problem'.</span></span><br />
<span style="font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><br /></span></span>
<br />
<span style="font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">We still should define what the action should do - and that is done in the Operations tab. Click on New in there, which opens a new operation form.</span></span><br />
<div class="separator" style="clear: both; text-align: center;">
<a href="https://www.zabbix.com/documentation/3.0/_media/manual/quickstart/new_operation.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://www.zabbix.com/documentation/3.0/_media/manual/quickstart/new_operation.png" /></a></div>
<span style="font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><br /></span></span>
<span style="font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">Here, click on Add in the Send to Users block and select the user ('user') we have defined. Select 'Email' as the value of Send only to. When done with this, click on Add in the operation detail block.</span></span><br />
<span style="font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><br /></span></span>
<br />
<span style="font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">That is all for a simple action configuration, so click Add in the action form.</span></span><br />
<br /></div>
</div>
</div>
<div>
<a href="http://www.hackthesec.co.in/">www.hackthesec.co.in</a></div>
</div>

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How to Create, List or Drop Indexes on MySQL Table

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<h2 class="title single-title title20" style="background-color: white; border: 0px; font-family: 'Roboto Slab'; font-size: 28px; line-height: 38px; 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: #990000;">Create, List or Drop Indexes on MySQL Table</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;"><a href="http://www.hackthesec.co.in/search/label/Mysql_Database">MySQL </a>is an open-source relational database management system (RDBMS); in July 2013, it was the world's second most widely used RDBMS, and the most widely used open-source client–server model RDBMS.It is named after Michael Widenius' (who is a co-founder of <a href="http://www.hackthesec.co.in/search/label/Mysql">MySQL</a>) daughter, while "SQL" stands as the abbreviation for Structured Query Language. </span></span></div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEglu6BHfIUQ1AeBTzwlsKiSNhaOqYuocrXR44DVliL0FgZSkJCAMrliMI-GKV_mNDYKbTqCkPXivMsMMn6tr2Isb_RqaVSQ-laoP5agXcTDjkayCuJXQgiZiDvAHJB4MimneZ_d3aYZ9nD9/s1600/mysq-linux-www.hackthesec.co.in.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="233" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEglu6BHfIUQ1AeBTzwlsKiSNhaOqYuocrXR44DVliL0FgZSkJCAMrliMI-GKV_mNDYKbTqCkPXivMsMMn6tr2Isb_RqaVSQ-laoP5agXcTDjkayCuJXQgiZiDvAHJB4MimneZ_d3aYZ9nD9/s320/mysq-linux-www.hackthesec.co.in.jpg" width="320" /></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 MySQL development project has made its source code available under the terms of the GNU General Public License, as well as under a variety of proprietary agreements. MySQL was owned and sponsored by a single for-profit firm, the Swedish company MySQL AB, now owned by Oracle Corporation. For proprietary use, several paid editions are available, and offer additional functionality.</span></span></div>
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<div style="background-color: white;">
<div>
<span style="color: #0b5394; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><b><u>CREATE INDEX:-</u></b></span></span></div>
<div>
<span style="color: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">This will creates index on mysql table. This will allow duplicate values also.</span></span></div>
</div>
<div style="background-color: white;">
<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-size: medium;"><span style="line-height: 20.8px;">CREATE INDEX index_name ON table_name (COLUMN_NAME1, COLUMN_NAME2, ...)</span></span></pre>
</div>
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<div>
<span style="font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><div>
<b><u><span style="color: #0b5394;">CREATE UNIQUE INDEX:-</span></u></b></div>
<div style="color: #333333;">
This will creates index on mysql table. With uses of UNIQUE keyword this will not allow duplicate values.</div>
</span></span></div>
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<div>
<div style="background-color: white;">
<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-size: medium;"><span style="line-height: 20.8px;">CREATE UNIQUE INDEX index_name ON table_name (COLUMN_NAME1, COLUMN_NAME2, ...)</span></span></pre>
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<div>
<div style="font-family: verdana, geneva, sans-serif; font-size: 15px; line-height: 26px;">
<b><u><span style="color: #0b5394;">1. CREATE INDEX Examples:-</span></u></b></div>
<div style="color: #333333; font-family: verdana, geneva, sans-serif; font-size: 15px; line-height: 26px;">
For this example I have a table named Users with thousands of records in mysql database. The table structure is as following in screenshot.</div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh3z2qQOnt4I3LKrqoI_EozExpVygth-cm1ix67-oPGafGtvzuOPi4bhw34QPRhDrky4PBw0me1PMR4EvN3Ya-D90I7PJewb3gs75DprQqbNjeQvgj-B-nTUFjsddzj0EAv2eB6zhKJGpTb/s1600/mysql-index-hackthesec.co.in.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh3z2qQOnt4I3LKrqoI_EozExpVygth-cm1ix67-oPGafGtvzuOPi4bhw34QPRhDrky4PBw0me1PMR4EvN3Ya-D90I7PJewb3gs75DprQqbNjeQvgj-B-nTUFjsddzj0EAv2eB6zhKJGpTb/s1600/mysql-index-hackthesec.co.in.png" /></a></div>
<div style="font-family: verdana, geneva, sans-serif;">
<span style="color: #333333;"><span style="font-size: 15px; line-height: 26px;">Now use following command to create index named Users_Idx1 on table Users based on column username.</span></span></div>
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<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-size: medium;"><span style="line-height: 20.8px;">mysql> CREATE INDEX Users_Idx1 ON Users (username);</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;">Use UNIQUE keyword with the query to create index with unique records.</span></span></div>
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<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-size: medium;"><span style="line-height: 20.8px;">mysql> CREATE UNIQUE INDEX Users_Idx1 ON Users (username);</span></span></pre>
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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: #0b5394;"><u>2. SHOW INDEX Examples:-</u></span></b></div>
<div style="color: #333333;">
Use following sql command to list all indexes for a mysql table. The below query will delete Users_Idx1 index from Users table in current database.</div>
</span></span></div>
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<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-size: medium;"><span style="line-height: 20.8px;">mysql> SHOW INDEX FROM Users;</span></span></pre>
</div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiDYacfjmKXhzjowDlol4bz38hgMHGasimYiSfGQH9qubNrw8FR3xCKJLO27uVZu1cuC-qxlmMQpTA_VOXbih3VO5ztw4sMc7VmsqpUzfoQMx_J5JgmL4_Dz6ArVx37e7Mf9B27ypYr99pr/s1600/mysql-index2-hackthesec.co.in.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiDYacfjmKXhzjowDlol4bz38hgMHGasimYiSfGQH9qubNrw8FR3xCKJLO27uVZu1cuC-qxlmMQpTA_VOXbih3VO5ztw4sMc7VmsqpUzfoQMx_J5JgmL4_Dz6ArVx37e7Mf9B27ypYr99pr/s1600/mysql-index2-hackthesec.co.in.png" /></a></div>
<div>
<br /></div>
<div>
<span style="font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><div>
<b><u><span style="color: #0b5394;">3. DELETE INDEX Examples:-</span></u></b></div>
<div style="color: #333333;">
Use following sql command to delete index on mysql table.</div>
</span></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-size: medium;"><span style="line-height: 20.8px;">mysql>  ALTER TABLE Users DROP INDEX Users_Idx1;</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-size: medium;"><span style="line-height: 20.8px;"><a href="http://www.hackthesec.co.in/">www.hackthesec.co.in</a></span></span></pre>
</div>
</div>

How to Create, List or Drop Indexes on MySQL Table

Create, List or Drop Indexes on MySQL Table MySQL is an open-source relational database management system (RDBMS); in July 2013, it was ...

We Just Launch a Discussion Forum About Linux

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<b><u><span style="color: #990000; font-size: large;">Hi Hack The Sec Users We Just Launch a Discussion Forum About Linux </span></u></b><br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgNGd2dSE36EwqPaCLsFMlVvPBw4MFsIMMFoNRrktPQPkfwZYRyGljUGP89grcSgWlXsib9j_gzMc5JUKhZw_ouL0R5u4bbHt5OClOwfj7BVXNKPpV37ZMjFfB6I7qdMUlHYIwaVk4gk010/s1600/linux-command_www.hackthesec.co.in.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="297" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgNGd2dSE36EwqPaCLsFMlVvPBw4MFsIMMFoNRrktPQPkfwZYRyGljUGP89grcSgWlXsib9j_gzMc5JUKhZw_ouL0R5u4bbHt5OClOwfj7BVXNKPpV37ZMjFfB6I7qdMUlHYIwaVk4gk010/s320/linux-command_www.hackthesec.co.in.jpg" width="320" /></a></div>
<b><u><span style="color: #990000; font-size: large;"><br /></span></u></b>
<br />
<span style="color: #0b5394; font-size: large;"><u style="font-weight: bold;">Here Is The Linux : - </u><a href="http://www.forum.hackthesec.co.in/index.php">http://www.forum.hackthesec.co.in</a></span><br />
<br /></div>

We Just Launch a Discussion Forum About Linux

Hi Hack The Sec Users We Just Launch a Discussion Forum About Linux Here Is The Linux : - http://www.forum.hackthesec.co.in

Installing Naxsi On Ubuntu 14.04

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<h1 style="box-sizing: border-box; font-family: Raleway, Helvetica, Arial, sans-serif; line-height: 46px; margin: 0px 0px 8px;">
<span style="color: #990000; font-size: large;"><u>Installing Naxsi On Ubuntu</u></span></h1>
<div>
<div>
<span style="color: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">NAXSI means <a href="http://www.hackthesec.co.in/search/label/NGINX">Nginx</a> Anti XSS & SQL Injection.</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;">Technically, it is a third party nginx module, available as a package for many UNIX-like platforms. This module, by default, reads a small subset of simple (and readable) rules containing 99% of known patterns involved in websites vulnerabilities. For example, <, | or drop are not supposed to be part of a URI.</span></span></div>
<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhSLzQdKsTjvUisUW5FwxBc0AE6YGXY8HBvJRTLmhojFtRKXfi7dLFTmc0fViZfMVeLsi1oTMdDkMBUnUr_QOCXPSANUmRvvABmmkibeBS4h3nlR8iNLZN8-vDPea7dnRF2a4odPe7fiioQ/s1600/nginx_hackthesec.co.in.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhSLzQdKsTjvUisUW5FwxBc0AE6YGXY8HBvJRTLmhojFtRKXfi7dLFTmc0fViZfMVeLsi1oTMdDkMBUnUr_QOCXPSANUmRvvABmmkibeBS4h3nlR8iNLZN8-vDPea7dnRF2a4odPe7fiioQ/s1600/nginx_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;">Being very simple, those patterns may match legitimate queries, it is Naxsi's administrator duty to add specific rules that will whitelist those legitimate behaviours. The administrator can either add whitelists manually by analyzing nginx's error log, or (recommended) start the project by an intensive auto-learning phase that will automatically generate whitelisting rules regarding website's behaviour.</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;">In short, Naxsi behaves like a DROP-by-default firewall, the only job needed is to add required ACCEPT rules for the target website to work properly.</span></span></div>
</div>
<div>
<div style="font-family: verdana, geneva, sans-serif; font-size: 15px; line-height: 26px;">
<b><u><span style="color: #0b5394;">Step 1A: Installing Naxsi without an existing Nginx installation</span></u></b></div>
<div style="color: #333333; font-family: verdana, geneva, sans-serif; font-size: 15px; line-height: 26px;">
Should you not have Nginx installed on your server yet, you should follow this step. If you already have an existing Nginx installation, follow step 1B. Before we're going to install Naxsi, it might be smart to update our system. Do this by executing:</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-size: large;"><span style="line-height: 20.8px;">apt-get update</span></span></pre>
</div>
</div>
<div>
<span style="color: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">Next, we can install Naxsi. Using apt-get for the install, Naxsi and its dependencies will be installed. Naxsi will automatically be started on boot.</span></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-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-size: large;"><span style="line-height: 20.8px;">apt-get install nginx-naxsi</span></span></pre>
</div>
<div>
<span style="font-family: verdana, geneva, sans-serif;"><div style="font-size: 15px; line-height: 26px;">
<b><u><span style="color: #0b5394;">Step 1B: Installing Naxsi with an existing Nginx installation</span></u></b></div>
<div style="color: #333333; font-size: 15px; line-height: 26px;">
Step 1A cannot be followed in case Nginx is already installed, as the <b>nginx-naxsi</b> package will be <b>Nginx + Naxsi</b>. If you already have Nginx and want Naxsi on top of that, generally, replacing the <b>nginx-core</b> package with the <b>nginx-naxsi</b> package should work fine. It is smart to create a backup of preferably your whole server, and the <b>/etc/nginx/</b> directory should be backed up as well.</div>
<div style="color: #333333; font-size: 15px; line-height: 26px;">
<br /></div>
<div>
<span style="color: #333333;"><span style="font-size: 15px; line-height: 26px;">If possible, deploy a new server with a totally new Nginx installation using the nginx-naxsi package. If not, backup your server and type:</span></span></div>
</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-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-size: large;"><span style="line-height: 20.8px;">apt-get install nginx-naxsi</span></span></pre>
</div>
<div>
<span style="color: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">This should install Naxsi and replace the existing Nginx, but keep all your files.</span></span></div>
<div>
<div style="font-family: verdana, geneva, sans-serif; font-size: 15px; line-height: 26px;">
<b><u><span style="color: #0b5394;">Step 2: Editing Naxsi settings</span></u></b></div>
<div style="color: #333333; font-family: verdana, geneva, sans-serif; font-size: 15px; line-height: 26px;">
In order to enable Naxsi, open the file <b>/etc/nginx/nginx.conf:</b></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-size: large;"><span style="line-height: 20.8px;">vi /etc/nginx/nginx.conf</span></span></pre>
</div>
</div>
<div>
<span style="color: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">and find the following section:</span></span></div>
<div>
<pre style="background-color: whitesmoke; border-radius: 4px; border: 1px solid rgb(204, 204, 204); box-sizing: border-box; color: #333333; font-family: Menlo, Monaco, Consolas, 'Courier New', monospace; line-height: 1.42857; margin-bottom: 10px; overflow: auto; padding: 9.5px; word-break: break-all; word-wrap: break-word;"><span style="font-size: large;"># nginx-naxsi config
##
# Uncomment it if you installed nginx-naxsi
##

# include /etc/nginx/naxsi_core.rules;</span></pre>
</div>
<div>
<div style="color: #333333; font-family: verdana, geneva, sans-serif; font-size: 15px; line-height: 26px;">
Remove the # in front of the include to load the Naxsi rules, which will enable Naxsi. After making that change, the line should look like this:</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;">
<b>include /etc/nginx/naxsi_core.rules;</b></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;">
The configuration of Naxsi can be found in <b>/etc/nginx/naxsi.rules</b>. You can see what it does and optionally change some settings, depending on your needs and the type of website(s) that you host.</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;">
After enabling Naxsi and editing the configuration, we need to enable Naxsi for our default site manually. Open /<b>etc/nginx/sites-enabled/default:</b></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-size: large;"><span style="line-height: 20.8px;">vi /etc/nginx/sites-enabled/default</span></span></pre>
</div>
</div>
<div>
<span style="color: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">In order to enable Naxsi on this location, remove the # if present, otherwise leave the include line that way and don't add a #.</span></span></div>
<div>
<pre style="background-color: whitesmoke; border-radius: 4px; border: 1px solid rgb(204, 204, 204); box-sizing: border-box; color: #333333; font-family: Menlo, Monaco, Consolas, 'Courier New', monospace; line-height: 1.42857; margin-bottom: 10px; overflow: auto; padding: 9.5px; word-break: break-all; word-wrap: break-word;"><span style="font-size: large;"># Uncomment to enable naxsi on this location
include /etc/nginx/naxsi.rules;</span></pre>
</div>
<div>
<span style="font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><div>
<b><u><span style="color: #0b5394;">Step 3: Turning off learning mode</span></u></b></div>
<div style="color: #333333;">
In order to let Naxsi protect your site, we need to turn off the learning mode. Open <b>/etc/nginx/naxsi.rules:</b></div>
</span></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-size: large;"><span style="line-height: 20.8px;">vi /etc/nginx/naxsi.rules</span></span></pre>
</div>
<div>
<span style="color: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">Find the string <b>LearningMode</b>, and place an # in front of it. That comments out the line and thus disable the learning mode in the config.</span></span></div>
<div>
<span style="font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><div>
<b><u><span style="color: #0b5394;">Step 4: Restarting Naxsi</span></u></b></div>
<div style="color: #333333;">
Restart Nginx for the changes to take effect:</div>
</span></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-size: large;"><span style="line-height: 20.8px;">service nginx reload</span></span></pre>
</div>
<div>
<span style="color: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">You can now see any security warnings from Naxsi in the Nginx log:</span></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-size: large;"><span style="line-height: 20.8px;">tail -f /var/log/nginx/error.log</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="font-size: large;"><a href="http://www.hackthesec.co.in/">www.hackthesec.co.in</a></span></pre>
</div>
</div>

Installing Naxsi On Ubuntu 14.04

Installing Naxsi On Ubuntu NAXSI means Nginx Anti XSS & SQL Injection. Technically, it is a third party nginx module, availabl...

How Install Desktop on CentOS 7

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<h1 class="entry-title" itemprop="headline" style="background-color: white; box-sizing: border-box; font-family: Raleway, sans-serif; line-height: 1; margin: 0px 0px 16px;">
<span style="color: #990000; font-size: large;"><u>Install Desktop on CentOS</u></span></h1>
<div>
<span style="color: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">Now in this post, we will show how to install Desktop on CentOS 7.</span></span></div>
<div>
<span style="color: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">As a linux user , you should be aware that in Linux World we have many Desktop environment available. Some of them, we are listing down.</span></span></div>
<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEha79_E-NUWn8EVF2mDRFLgI5LFPWbPUXjxgUuE3FL9jBq06rnFq_X3ItKbIYcJIHJO0QRNeOKh8_t_9314hpuQqKm6g_0RjKAnTK2AhN83DjhgLZnacV5lZPCH39lif-9Q9svBzsw7qw-k/s1600/centos7_www.hackthesec.co.in.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEha79_E-NUWn8EVF2mDRFLgI5LFPWbPUXjxgUuE3FL9jBq06rnFq_X3ItKbIYcJIHJO0QRNeOKh8_t_9314hpuQqKm6g_0RjKAnTK2AhN83DjhgLZnacV5lZPCH39lif-9Q9svBzsw7qw-k/s1600/centos7_www.hackthesec.co.in.png" /></a></div>
<div>
<div style="color: #333333; font-family: verdana, geneva, sans-serif;">
<ul style="font-size: 15px; line-height: 26px; text-align: left;">
<li>GNOME</li>
<li> KDE</li>
<li> Unity (For <a href="http://www.hackthesec.co.in/search/label/Ubuntu">Ubuntu</a>)</li>
<li> Cinnamon (For of GNOME, originally developed by Linux Mint)</li>
<li>LXDE</li>
</ul>
<div>
<span style="font-size: 15px; line-height: 26px;">In this post, we will install GNOME desktop on <a href="http://www.hackthesec.co.in/search/label/Centos">CentOS 7</a> which is popular and widely used. You can opt for other Desktop Environment alternative.</span></div>
</div>
<div style="font-family: verdana, geneva, sans-serif;">
<div>
<span style="font-size: 15px; line-height: 26px;"><b><u><span style="color: #0b5394;">Steps To Install GNOME Desktop on CentOS 7</span></u></b></span></div>
<div style="color: #333333;">
<span style="font-size: 15px; line-height: 26px;">1. Login as Root on CentOS 7 system or switch to super user after login</span></div>
</div>
<div style="color: #333333; font-family: verdana, geneva, sans-serif;">
<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-radius: 4px; border: 1px solid rgb(229, 229, 229); line-height: 19.2px; margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: white;"><span style="line-height: 20.8px;"><span style="font-size: large;">sudo su -</span></span></span></pre>
</div>
<div style="font-family: verdana, geneva, sans-serif;">
<div>
<span style="color: #333333;"><span style="font-size: 15px; line-height: 26px;">2. Take the backup of data which you want to save. (Make a habit of taking backup, it is a good practice)</span></span></div>
<div>
<span style="color: #333333;"><span style="font-size: 15px; line-height: 26px;">3. Run the command –</span></span></div>
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<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-size: large;"><span style="line-height: 20.8px;">yum groupinstall "GNOME Desktop"</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;">NOTE: Installing Desktop will consume time. When we installed the GNOME Desktop, all packages size was aggregated to more than 700 MB. This was the case for minimal installed CentOS 7. We recommend to install Desktop when your system have good internet speed.</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: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">4. This is not an end yet. To get the Desktop on every system boot, run the given below command.</span></span></div>
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<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-size: large;"><span style="line-height: 20.8px;">systemctl set-default graphical.target</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;">5. Restart the CentOS 7 system.</span></span></div>
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<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-size: large;"><span style="line-height: 20.8px;">init 6</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;">6. On system reboot, you will get some questions on screen to answer. These are as follows –</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;">(a) EULA</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;">Accept the license.</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;">(b) Language Setting</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;">Select your language</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;">(c) Keyboard Typing</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;">Select your keyboard type</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;">(d) Timezone</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;">Select your country time zone.</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;">(e) User Creation</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;">Create your user and set the password</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;">(f) "You're All Set"</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 will get the finishing line as written just above.</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 are all set now. You can start working on your desktop. Restart the system and check it once again.</span></span></div>
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<div style="font-family: verdana, geneva, sans-serif; font-size: 15px; line-height: 26px;">
<b><u><span style="color: #0b5394;">Do you know that</span></u></b></div>
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(A)Once the installation of "GNOME Desktop" is completed. You can get into Desktop from your black terminal. For this you have to run the command –</div>
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<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-size: large;"><span style="line-height: 20.8px;">startx</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)</span></span><span style="color: #333333; font-family: verdana, geneva, sans-serif; font-size: 15px; line-height: 26px;">Start the graphical.target service to directly switch to Desktop without reboot</span></div>
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<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-size: large;"><span style="line-height: 20.8px;">systemctl start graphical.target</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;"><span style="line-height: 20.8px;"><a href="http://www.hackthesec.co.in/">www.hackthesec.co.in</a></span></span></pre>
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How Install Desktop on CentOS 7

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