Hack The Sec-Leading Resource Of Linux Tutorial: Ubuntu

How to Install and use Log File Navigator – lnav in Ubuntu and CentOS linux

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Install and use Log File Navigator – lnav in Ubuntu and CentOS</h1>
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The Log File Navigator, lnav, is an enhanced log file viewer that takes advantage of any semantic information that can be gleaned from the files being viewed, such as timestamps and log levels. </div>
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Using this extra semantic information, lnav can do things like interleaving messages from different files, generate histograms of messages over time, and providing hotkeys for navigating through the file. It is hoped that these features will allow the user to quickly and efficiently zero in on problems.</div>
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In this article we will show you how to install and use The Log File Navigator, lnav, on <a href="http://www.hackthesec.co.in/search/label/Ubuntu">Ubuntu </a>15.04/15.10/ and <a href="http://www.hackthesec.co.in/search/label/Centos">CentOS 7</a>.x</div>
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lnav – Features</div>
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<li>Single log view: all log file contents are merged into a single view based on message timestamps. No need to manually correlate timestamps across multiple windows or figure out the order in which to view rotated log files.</li>
<li>Automatic format detection for several common log files. It also detects gzip/bzi2 files and decompress them automatically on the fly.</li>
<li>Filters: display only lines that match or do not match a set of regular expressions. Filter by error level.</li>
<li>Timeline view: shows a histogram of messages over time. The number of warnings and errors are highlighted in the display so that you can easily see where problems have occurred.</li>
<li>Query logs using SQL: log files are directly used as the backing for SQLite virtual tables.</li>
<li>Automatic data extraction: built-in log message parser can automatically discover and extract interesting data from plainly formatted log messages.</li>
<li>Live operation: Search as you type. New log lines are automatically loaded and searched as they are added; filters apply to lines as they are loaded; and, SQL queries are checked for correctness as you type.</li>
<li>Syntax highlighting with configurable colourizing</li>
<li>Tab completion</li>
<li>Sessions</li>
<li>Supports Linux and Mac</li>
</ul>
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Install lnav on Ubuntu 15.04/15.10 and Linux Mint 17.x</div>
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To install lnav on Ubuntu 15.04/15.10 and Linux Mint 17.x and other Ubuntu based distribution, type following command in your terminal:</div>
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<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; color: white; font-family: monospace, serif; font-size: 14px; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;">$ sudo apt-get install lnav -y</pre>
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Install lnav on CentOS 7</div>
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First, enable epel repository:</div>
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<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; color: white; font-family: monospace, serif; font-size: 14px; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;">$ sudo yum install epel-release -y</pre>
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Now, install lnav using yum command:</div>
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<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; color: white; font-family: monospace, serif; font-size: 14px; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;">$ sudo yum install lnav -y</pre>
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Using lnav command</div>
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If you want to view logs using lnav you can do using the following command by default it shows syslogs.</div>
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<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; color: white; font-family: monospace, serif; font-size: 14px; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;">$ lnav</pre>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhQu5LEdC3IG2TW_rGdocj0NAYHpqQooYYJW8h-spbGA0Qdan60IFvgOfuni0OS2aZl_s0e-R4ezIT_7_iHTWwcwXxZg2dpQwvvZ3g6SH9jnjcg5fOrPQ1tAT5l2L21W7Khdy2_PUxBJKi3/s1600/Use-lnav-log-viewer.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhQu5LEdC3IG2TW_rGdocj0NAYHpqQooYYJW8h-spbGA0Qdan60IFvgOfuni0OS2aZl_s0e-R4ezIT_7_iHTWwcwXxZg2dpQwvvZ3g6SH9jnjcg5fOrPQ1tAT5l2L21W7Khdy2_PUxBJKi3/s1600/Use-lnav-log-viewer.png" /></a></div>
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If you want to view specific logs provide the path. Example:</div>
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<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; color: white; font-family: monospace, serif; font-size: 14px; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;">$ lnav /var/log/clamav/</pre>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg-sYeWh28aR19JJBG39T-MyV2YwlsN2DZ-uudRJBvKag3mgJ2EB5mYau4ImxK6wBhgCmmi6QI17VXiZSXgtQKIu0uWfPdoDF0gKWyrquxionTfTjDYiNsd__lQLiaEdJbSKiWPn55qlMBB/s1600/lnav-view-specific-logs.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg-sYeWh28aR19JJBG39T-MyV2YwlsN2DZ-uudRJBvKag3mgJ2EB5mYau4ImxK6wBhgCmmi6QI17VXiZSXgtQKIu0uWfPdoDF0gKWyrquxionTfTjDYiNsd__lQLiaEdJbSKiWPn55qlMBB/s1600/lnav-view-specific-logs.png" /></a></div>
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How to navigate in lnav</div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgXmLlEjaj4f6ozCZaIHNnR8QHs2nehhcxyIlZatSI0lu9-R1xof12i1JacCfRYMFKL4LNFAKL5vvkrlvNHazZP_9Sq_9CDZtJZCbKsMDVUyJ9d3G1udhjiDjKClI3bvU8PpZNGi_MDABgx/s1600/how-to-use-lnav.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgXmLlEjaj4f6ozCZaIHNnR8QHs2nehhcxyIlZatSI0lu9-R1xof12i1JacCfRYMFKL4LNFAKL5vvkrlvNHazZP_9Sq_9CDZtJZCbKsMDVUyJ9d3G1udhjiDjKClI3bvU8PpZNGi_MDABgx/s1600/how-to-use-lnav.png" /></a></div>
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For more information visit <a href="http://lnav.org/">official lnav site.</a></div>
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How to Install and use Log File Navigator – lnav in Ubuntu and CentOS linux

Install and use Log File Navigator – lnav in Ubuntu and CentOS The Log File Navigator, lnav, is an enhanced log file viewer that takes ...

How to install and configure AutoMySQLBackup

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Install and configure AutoMySQLBackup</h1>
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AutoMySQLBackup is very useful utility for creating daily, weekly or monthly backups of one or more MySQL databases from one of more <a href="http://www.hackthesec.co.in/search/label/Mysql">MySQL </a>servers. It dumps the databases and compress them in to archives.</div>
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it comes with many features such as:</div>
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<ul style="font-size: 15px; line-height: 26px; text-align: left;">
<li>Email notification of backups</li>
<li>Backup Compression and Encryption</li>
<li>Configurable backup rotation</li>
<li>Incremental database backups</li>
</ul>
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For Debian based systems execute</div>
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<pre style="background: rgb(68, 68, 68); border-radius: 3px; border: 1px solid rgb(221, 221, 221); color: white; font-family: "Courier 10 Pitch", Courier, monospace; font-size: 15px; font-stretch: inherit; line-height: 19px; margin-bottom: 30px; margin-top: 30px; max-width: 100%; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline; word-wrap: normal;">apt-get update && apt-get upgrade</pre>
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For RPM based systems execute</div>
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<pre style="background: rgb(68, 68, 68); border-radius: 3px; border: 1px solid rgb(221, 221, 221); color: white; font-family: "Courier 10 Pitch", Courier, monospace; font-size: 15px; font-stretch: inherit; line-height: 19px; margin-bottom: 30px; margin-top: 30px; max-width: 100%; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline; word-wrap: normal;">yum -y update</pre>
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If you are running Debian based distro <a href="http://www.hackthesec.co.in/search/label/Mysql">AutoMySQLBackup</a> is available in the repositories and you can easily install it by executing the following</div>
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<pre style="background: rgb(68, 68, 68); border-radius: 3px; border: 1px solid rgb(221, 221, 221); color: white; font-family: "Courier 10 Pitch", Courier, monospace; font-size: 15px; font-stretch: inherit; line-height: 19px; margin-bottom: 30px; margin-top: 30px; max-width: 100%; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline; word-wrap: normal;">apt-get install automysqlbackup</pre>
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If you have a RPM based distro you will have to download AutoMySQLBackup’s installation scripts</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; font-size: 13px; line-height: 1.42857; margin-bottom: 10px; overflow: auto; padding: 9.5px; word-break: break-all; word-wrap: break-word;">wget http://downloads.sourceforge.net/project/automysqlbackup/AutoMySQLBackup/AutoMySQLBackup%20VER%203.0/automysqlbackup-v3.0_rc6.tar.gz</pre>
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Create a directory for Automysqlbackup's scripts and unpack the downloaded tar archive</div>
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<pre style="background: rgb(68, 68, 68); border-radius: 3px; border: 1px solid rgb(221, 221, 221); color: white; font-family: "Courier 10 Pitch", Courier, monospace; font-size: 15px; font-stretch: inherit; line-height: 19px; margin-bottom: 30px; margin-top: 30px; max-width: 100%; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline; word-wrap: normal;">mkdir /opt/automysqlbackup
tar zxvf automysqlbackup-v3.0_rc6.tar.gz -C /opt/automysqlbackup</pre>
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Once the archive is unpacked run the Automysqlbackup installation script</div>
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<pre style="background: rgb(68, 68, 68); border-radius: 3px; border: 1px solid rgb(221, 221, 221); color: white; font-family: "Courier 10 Pitch", Courier, monospace; font-size: 15px; font-stretch: inherit; line-height: 19px; margin-bottom: 30px; margin-top: 30px; max-width: 100%; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline; word-wrap: normal;">cd /opt/automysqlbackup
./install.sh

### Checking archive files for existence, readability and integrity.

automysqlbackup ... exists and is readable ... md5sum okay :)
automysqlbackup.conf ... exists and is readable ... md5sum okay :)
README ... exists and is readable ... md5sum okay :)
LICENSE ... exists and is readable ... md5sum okay :)

Select the global configuration directory [/etc/automysqlbackup]:
Select directory for the executable [/usr/local/bin]:
### Creating global configuration directory /etc/automysqlbackup:

success</pre>
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You can use the default paths for the global configuration directory and the directory for the executable. You just have to press Enter when the paths are required.</div>
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Next, we have to configure AutoMySQLBackup. Open its configuration file located in the directory we set when we ran the installation script.</div>
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<pre style="background: rgb(68, 68, 68); border-radius: 3px; border: 1px solid rgb(221, 221, 221); color: white; font-family: "Courier 10 Pitch", Courier, monospace; font-stretch: inherit; line-height: 19px; margin-bottom: 30px; margin-top: 30px; max-width: 100%; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline; word-wrap: normal;">vim /etc/automysqlbackup/automysqlbackup.conf</pre>
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And uncommend and set the following confituration directives</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; font-size: 13px; line-height: 1.42857; margin-bottom: 10px; overflow: auto; padding: 9.5px; word-break: break-all; word-wrap: break-word;">CONFIG_mysql_dump_username='root'
CONFIG_mysql_dump_password='YourPassword'
CONFIG_mysql_dump_host='localhost'
CONFIG_backup_dir='/var/backup/db'
CONFIG_do_monthly="01"
CONFIG_do_weekly="5"
CONFIG_rotation_daily=6
CONFIG_rotation_weekly=35
CONFIG_rotation_monthly=150
CONFIG_mysql_dump_port=3306
CONFIG_mysql_dump_compression='gzip'</pre>
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Once you are done with editing, save the configuration file. All settings are optional and there is description for all of them, so it is best to check the configuration file for more information about the settings of AutoMySQLBackup.</div>
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Create a directory for the MySQL backups. This is the directory we set as ‘backup_dir’ in the configuration file.</div>
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<pre style="background: rgb(68, 68, 68); border-radius: 3px; border: 1px solid rgb(221, 221, 221); color: white; font-family: "Courier 10 Pitch", Courier, monospace; font-stretch: inherit; line-height: 19px; margin-bottom: 30px; margin-top: 30px; max-width: 100%; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline; word-wrap: normal;">mkdir /var/backup</pre>
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If you want to create a backup of your MySQL databases, run AutoMySQLBackup by executing the following</div>
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<pre style="background: rgb(68, 68, 68); border-radius: 3px; border: 1px solid rgb(221, 221, 221); color: white; font-family: "Courier 10 Pitch", Courier, monospace; font-size: 15px; font-stretch: inherit; line-height: 19px; margin-bottom: 30px; margin-top: 30px; max-width: 100%; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline; word-wrap: normal;">automysqlbackup</pre>
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You can also create a crontab entry to run AutoMySQLBackup at a specific time or you can use bellow script</div>
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<pre style="background-color: whitesmoke; border-radius: 4px; border: 1px solid rgb(204, 204, 204); box-sizing: border-box; margin-bottom: 10px; overflow: auto; padding: 9.5px; word-break: break-all; word-wrap: break-word;">#!/bin/sh

/usr/local/bin/automysqlbackup /etc/automysqlbackup/automysqlbackup.conf

chown root.root /var/backup/db* -R
sudo chmod -R a-x+X /var/backup/db
</pre>
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 </div>
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How to install and configure AutoMySQLBackup

Install and configure AutoMySQLBackup AutoMySQLBackup is very useful utility for creating daily, weekly or monthly backups of one or mor...

How to install min web browser on linux

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Min Brand New Web Browser for Linux 
<a href="https://minbrowser.github.io/min/">Min </a>is a smarter, faster, light weight Brand New web browser for Linux, Windows & Mac. Find anything instantly with information from DuckDuckGo including Wikipedia entries and more. Speed up your search with fuzzy search, and get suggestions instantly before you even start typing. While creating bookmark the full text of the page is saved and becomes searchable. 
<div class="separator" style="clear: both; text-align: center;">
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Effortless tab management : Tabs in Min open next to the current tab, so you’ll never lose your place. You can view your tabs in a list, or split them into groups when you have lots of tabs. 
 
Built-in ad blocking : Min have Built-in ad blocking which will help us to block the ads. Also you have option to block scripts & images when you’re using a slow internet connection to speed up your browsing experience. 
 
Fast and efficient : Min is designed to be fast. It uses less battery power, so you don’t have to worry about finding a charger. 
 
Min is written entirely electron with CSS and JavaScript, and It’s purely open-source software. 
Install Min on Debian based Systems 
 
We can easily install Min on Debian based systems such as Debian, Ubuntu & Mint by downloading .deb file from <a href="https://github.com/minbrowser/min/releases">project github page</a>. 
<pre style="background: rgb(68, 68, 68); border-radius: 3px; border: 1px solid rgb(221, 221, 221); color: white; font-family: "Courier 10 Pitch", Courier, monospace; font-size: 15px; font-stretch: inherit; line-height: 19px; margin-bottom: 30px; margin-top: 30px; max-width: 100%; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline; word-wrap: normal;">$ wget https://github.com/minbrowser/min/releases/download/v1.3.1/min_1.3.1_amd64.deb
$ sudo dpkg -i min_1.3.1_amd64.deb</pre>
Install Min on Linux 
 
Download the Min source archive and install it to other Linux distribution. Download the archive file from <a href="https://github.com/minbrowser/min/releases">project github</a> page and install it. 
 
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How to install min web browser on linux

Min Brand New Web Browser for Linux Min is a smarter, faster, light weight Brand New web browser for Linux, Windows & Mac. Find anythi...

phpVirtualBox – A web-based front end for VirtualBox

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

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

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

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

Atop – monitor system resources in Linux

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

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

How to Install Atom Text Editor on Linux

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

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

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

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

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

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

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

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

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

Installing HAProxy For Load Blancing And Protecting Apache From DDos

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

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

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

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

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

default_backend apache

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

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

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

How to Install MariaDB on Ubuntu 16.04

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

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

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

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