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RHEL 7 and Centos7 Root Password recovery procedure

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<span style="color: #990000; font-size: large;"><u><i>RHEL7/CENTOS7: Interrupt the boot process in order to gain access to a system.</i></u></span></h1>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgHLpe_9uUaPwqHqQRdPlX5dYbVZ5yChcYfD_LyuVgxPoTUaf6IEzSL1aOuQProwdzNdOtlDMnmoKojDWzMuoQYR6Oz4-D3jjX1UQXA5W_HZOEvI6W_YJKmrzyKXOu-aMEjGdTBY_QxjQ4J/s1600/recover_root_password.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="200" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgHLpe_9uUaPwqHqQRdPlX5dYbVZ5yChcYfD_LyuVgxPoTUaf6IEzSL1aOuQProwdzNdOtlDMnmoKojDWzMuoQYR6Oz4-D3jjX1UQXA5W_HZOEvI6W_YJKmrzyKXOu-aMEjGdTBY_QxjQ4J/s320/recover_root_password.png" width="320" /></a></div>
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In <span style="border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border: 0px; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: 700; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;"><a href="http://www.hackthesec.co.in/search/label/RHEL" target="_blank">RHEL</a> 7</span>, the procedure to get access to a system during the boot process and modify the root password has changed because of the adoption of <span style="border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border: 0px; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: 700; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;">Systemd</span>.<br /><span style="color: white;"><a href="http://www.hackthesec.co.in/2016/02/rhel-7-and-centos7-root-password.html" target="_blank">RHEL 7 Root Password recovery procedure</a><br /><a href="http://www.hackthesec.co.in/2016/02/rhel-7-and-centos7-root-password.html" target="_blank">Centos7  Root Password recovery procedure</a></span><br />There were several procedures floating around to recover the root password. Some were working with physical servers but not with virtual machines, some the other way around.</div>
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The following procedure works all the time.</div>
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<span style="color: #0b5394;">Procedure</span></h2>
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At the beginning of the boot process, at the <span style="border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border: 0px; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: 700; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;">GRUB 2</span> menu, type the <span style="border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border: 0px; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: 700; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;">e</span> key to edit.</div>
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Then, go to the kernel line (the line starting with <span style="border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border: 0px; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: 700; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;">linux16</span>) and add the following statements at the end:</div>
<pre style="background: rgb(244, 244, 244); border-color: rgb(170, 170, 170) rgb(170, 170, 170) rgb(204, 204, 204); border-radius: 2px; border-style: solid; border-width: 1px; box-shadow: rgb(255, 255, 255) 0px 1px 0px, rgba(0, 0, 0, 0.2) 0px 1px 1px inset; box-sizing: border-box; font-family: monospace, serif; font-size: 14px; font-stretch: inherit; height: auto; line-height: 21px; outline: none; overflow-x: auto; padding: 6px 10px; vertical-align: middle; width: 605.484px; word-wrap: normal;"><span style="border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border: 0px; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: 700; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;"><span style="color: #555555;">rd.break </span><span style="color: #351c75;">enforcing</span><span style="color: #555555;">=0</span></span></pre>
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Caution: The keys to press are those of a <span style="border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border: 0px; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: 700; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;">US</span> keyboard (querty).<br />Note: <span style="border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border: 0px; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: 700; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;">rd.break</span> asks for a break at an early stage of the boot process. <span style="border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border: 0px; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: 700; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;">enforcing=0</span> puts the system into <span style="border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border: 0px; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: 700; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;">SELinux Permissive</span> mode.</div>
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Press <span style="border: 0px; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: 700; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;">Ctrl x</span> to resume the boot process.</div>
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Then, mount the <span style="border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border: 0px; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: 700; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;">/sysroot</span> partition as read/write:</div>
<pre style="background: rgb(244, 244, 244); border-color: rgb(170, 170, 170) rgb(170, 170, 170) rgb(204, 204, 204); border-radius: 2px; border-style: solid; border-width: 1px; box-shadow: rgb(255, 255, 255) 0px 1px 0px, rgba(0, 0, 0, 0.2) 0px 1px 1px inset; box-sizing: border-box; font-family: monospace, serif; font-size: 14px; font-stretch: inherit; height: auto; line-height: 21px; outline: none; overflow-x: auto; padding: 6px 10px; vertical-align: middle; width: 605.484px; word-wrap: normal;"><span style="color: #555555;">switch_root:/# </span><span style="border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border: 0px; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: 700; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;"><span style="color: #351c75;">mount –o remount,rw /sysroot</span></span></pre>
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Execute the <span style="border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border: 0px; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: 700; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;">chroot</span> command on the <span style="border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border: 0px; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: 700; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;">/sysroot</span> partition:</div>
<pre style="background: rgb(244, 244, 244); border-color: rgb(170, 170, 170) rgb(170, 170, 170) rgb(204, 204, 204); border-radius: 2px; border-style: solid; border-width: 1px; box-shadow: rgb(255, 255, 255) 0px 1px 0px, rgba(0, 0, 0, 0.2) 0px 1px 1px inset; box-sizing: border-box; font-family: monospace, serif; font-size: 14px; font-stretch: inherit; height: auto; line-height: 21px; outline: none; overflow-x: auto; padding: 6px 10px; vertical-align: middle; width: 605.484px; word-wrap: normal;"><span style="color: #555555;">switch_root:/# </span><span style="border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border: 0px; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: 700; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;"><span style="color: #555555;">chroot /</span><span style="color: #351c75;">sysroot</span></span></pre>
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Change the <span style="border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border: 0px; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: 700; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;">root</span> password:</div>
<pre style="background: rgb(244, 244, 244); border-color: rgb(170, 170, 170) rgb(170, 170, 170) rgb(204, 204, 204); border-radius: 2px; border-style: solid; border-width: 1px; box-shadow: rgb(255, 255, 255) 0px 1px 0px, rgba(0, 0, 0, 0.2) 0px 1px 1px inset; box-sizing: border-box; font-family: monospace, serif; font-size: 14px; font-stretch: inherit; height: auto; line-height: 21px; outline: none; overflow-x: auto; padding: 6px 10px; vertical-align: middle; width: 605.484px; word-wrap: normal;"><span style="color: #555555;">sh-4.2# <span style="border: 0px; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: 700; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;">passwd root</span>
Changing password for user root.
New passwd: <b>mypassword</b>
Retype new password: <b>mypassword</b>
</span><span style="color: #351c75;">passwd: all authentication token updated successfully.
</span><span style="color: #555555;">sh-4.2# </span><span style="border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border: 0px; color: #555555; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: 700; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;">exit
</span><span style="color: #555555;">exit
switch_root:/# </span><span style="border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border: 0px; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: 700; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;"><span style="color: #351c75;">exit</span></span><span style="border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border: 0px; color: #555555; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: 700; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;">
</span><span style="color: #555555;">logout</span></pre>
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Connect to your server at the console (don’t reboot now!) with the <span style="border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border: 0px; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: 700; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;">root</span> user and the new password:</div>
<pre style="background: rgb(244, 244, 244); border-color: rgb(170, 170, 170) rgb(170, 170, 170) rgb(204, 204, 204); border-radius: 2px; border-style: solid; border-width: 1px; box-shadow: rgb(255, 255, 255) 0px 1px 0px, rgba(0, 0, 0, 0.2) 0px 1px 1px inset; box-sizing: border-box; font-family: monospace, serif; font-size: 14px; font-stretch: inherit; height: auto; line-height: 21px; outline: none; overflow-x: auto; padding: 6px 10px; vertical-align: middle; width: 605.484px; word-wrap: normal;"><span style="color: #555555;">...
[  OK  ] Started Network Manager Script Dispatcher Service.
[  OK  ] Started Crash recovery kernel arming.
[  OK  ] Reached target Multi-User System.

</span><span style="color: #0b5394;">CentOS Linux 7 (Core)
</span><span style="color: #555555;">Kernel 3.10.0-229.14.1.el7.x86_64 on an x86_64

vm login: </span><span style="border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border: 0px; color: #555555; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: 700; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;">root</span><span style="color: #555555;">
Password: </span><b style="color: #555555;">mypassword</b><span style="color: #555555;">
</span></pre>
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Then type:</div>
<pre style="background: rgb(244, 244, 244); border-color: rgb(170, 170, 170) rgb(170, 170, 170) rgb(204, 204, 204); border-radius: 2px; border-style: solid; border-width: 1px; box-shadow: rgb(255, 255, 255) 0px 1px 0px, rgba(0, 0, 0, 0.2) 0px 1px 1px inset; box-sizing: border-box; font-family: monospace, serif; font-size: 14px; font-stretch: inherit; height: auto; line-height: 21px; outline: none; overflow-x: auto; padding: 6px 10px; vertical-align: middle; width: 605.484px; word-wrap: normal;"><span style="color: #555555;"># </span><span style="border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border: 0px; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: 700; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;"><span style="color: #351c75;">restorecon /etc/shadow</span><span style="color: #555555;">
</span></span><span style="color: #555555;"># </span><span style="border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border: 0px; color: #555555; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: 700; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;">reboot</span></pre>
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If you strictly follow this procedure, you don’t need to force a <span style="border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border: 0px; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: 700; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;">SELinux</span> relabel (# <span style="border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border: 0px; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: 700; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;">touch /.autorelabel</span>) or load the <span style="border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border: 0px; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: 700; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;">SELinux</span> policy (# <span style="border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border: 0px; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: 700; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;">/usr/sbin/load_policy -i</span>).</div>
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You don’t even need to reboot at the end! In this case, type # <span style="border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border: 0px; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: 700; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;">setenforce enforcing<br /><a href="http://www.hackthesec.co.in/" style="color: #999999; font-family: 'Roboto Slab'; font-size: 16px; font-weight: normal; line-height: 28px; text-decoration: none;" target="_blank">HackTheSec</a><br style="color: #333333; font-family: 'Roboto Slab'; font-size: 16px; font-weight: normal; line-height: 28px;" /><a href="https://www.twitter.com/hackthesecurity" style="color: #999999; font-family: 'Roboto Slab'; font-size: 16px; font-weight: normal; line-height: 28px; text-decoration: none;" target="_blank">HackTheSecTwitter</a><br style="color: #333333; font-family: 'Roboto Slab'; font-size: 16px; font-weight: normal; line-height: 28px;" /><a href="http://facebook.com/htsecu" style="color: #999999; font-family: 'Roboto Slab'; font-size: 16px; font-weight: normal; line-height: 28px; text-decoration: none;" target="_blank">HackTheSecFacebook</a><br style="color: #333333; font-family: 'Roboto Slab'; font-size: 16px; font-weight: normal; line-height: 28px;" /><a href="http://www.hackthesec.co.in/" style="color: #999999; font-family: 'Roboto Slab'; font-size: 16px; font-weight: normal; line-height: 28px; text-decoration: none;">www.hackthesec.co.in</a></span></div>
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RHEL 7 and Centos7 Root Password recovery procedure

RHEL7/CENTOS7: Interrupt the boot process in order to gain access to a system. In RHEL 7, the procedure to get access to a system during the boot process and modify the root password has changed beca…

06 Feb 2016

How to Install JAVA 9 (JDK9) on Debian Via PPA

java version "</span><span style="color: lime;">1.9.0-ea</span><span style="color: white;">"
Java(TM) SE Runtime Environment (build 1.9.0-ea-b50)
Java HotSpot(TM) 64-Bit Server VM (build 1.9.0-ea-b50, mixed mode)</span></span><span style="color: white; font-size: 0.9em;">
</span></pre>
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<span style="color: #0b5394;">Configuring Java Environment</span></h2>
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In Webupd8 ppa repository also providing a package to set environment variables, Install this package using following command. This will set the useful environment variables for JAVA in your system.</div>
<pre style="background: none 0px 0px repeat scroll rgb(60, 60, 60); border-radius: 4px; border: 1px solid rgb(229, 229, 229); line-height: 1.3em; margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="font-family: Courier New, Courier, monospace; font-size: large;"><span style="color: white;">$ sudo </span><span style="color: lime;">apt-get <orange>install</orange></span><span style="color: white;"> oracle-java9-set-default
</span></span></pre>
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<span style="border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border: 0px; font-size: inherit; font-weight: 700; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;">References:</span><br /><a href="https://launchpad.net/~webupd8team/+archive/java" style="outline: none; text-decoration: none;" target="_blank">https://launchpad.net/~webupd8team/+archive/java</a></div>
<div style="background-color: white; border: 0px; font-family: 'Roboto Slab'; font-size: 16px; line-height: 28px; margin-bottom: 20px; outline: 0px; padding: 0px; vertical-align: baseline;">
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How to Install JAVA 9 (JDK9) on Debian Via PPA

Install JAVA 9 (JDK9) on Debian Via PPA Oracle JAVA 9 Early Access release is available to download and install. Java 9 stable release is supposed to be come in 2017. So you have to wait for Java 9 s…

06 Feb 2016

How to Install PHP 7, NGINX & MySQL on Ubuntu 15.10 & 14.04

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<span style="color: #990000;"><u><i>Install PHP 7, NGINX & MySQL on Ubuntu</i></u></span></h2>
<div>
<span style="background-color: white; font-family: 'Roboto Slab'; font-size: 16px; line-height: 28px;">The latest major release of <a href="http://www.hackthesec.co.in/search/label/PHP">PHP </a>version 7.0 has been released with lots of speed optimizations and security. So you should try this version for your development. This tutorial will help you to install <a href="http://www.hackthesec.co.in/search/label/PHP">PHP </a>7.0, Nginx, & <a href="http://www.hackthesec.co.in/search/label/Mysql">MySQL </a>5.6 on Ubuntu 15.10, 14.04 and 12.04 LTS release.</span></div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjHkeYKLAYt3CaCmZ_XRjpD5Z49mXNT8YcOjaXaTzZtP_2pcDpAtsdu_ur3tbzRj5dSF55ysYGz05e7erLWISuEs0gZcKJ-8qvXtWL32FHfGKH2gTEgSHRtPCcHICZF7FUx2R3uDioyYU1Q/s1600/php7-nginx-mysql_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/AVvXsEjHkeYKLAYt3CaCmZ_XRjpD5Z49mXNT8YcOjaXaTzZtP_2pcDpAtsdu_ur3tbzRj5dSF55ysYGz05e7erLWISuEs0gZcKJ-8qvXtWL32FHfGKH2gTEgSHRtPCcHICZF7FUx2R3uDioyYU1Q/s1600/php7-nginx-mysql_www.hackthesec.co.in.png" /></a></div>
<div>
<span style="background-color: white; font-family: 'Roboto Slab'; font-size: 16px; line-height: 28px;"><br /></span></div>
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<span style="color: #0b5394;">Step 1 – Install PHP 7 with PHP-FPM</span></h2>
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First install python-software-properties package on your system which provides add-apt-repository command then use the following set of commands to add PPA for <a href="http://www.hackthesec.co.in/search/label/PHP">PHP </a>7 in your Ubuntu system and install it.</div>
<pre style="background: none 0px 0px repeat scroll rgb(60, 60, 60); border-radius: 4px; border: 1px solid rgb(229, 229, 229); line-height: 1.3em; margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: white;">$ sudo apt-get install python-software-properties
</span><span style="color: lime;">$ sudo add-apt-repository ppa:ondrej/php
</span><span style="color: white;">$ sudo apt-get update
$ sudo apt-get install -y php7.0 php7.0-fpm</span><span style="color: white; font-size: 0.9em;">
</span></pre>
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<span style="color: #0b5394;">Step 2 — Install Nginx</span></h2>
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First we will install Latest <b>Nginx web server</b> on our system. Use the following commands to add PPA for installing latest Nginx version on your Ubuntu 14.04 (<b>Trusty</b>).</div>
<pre style="background: none 0px 0px repeat scroll rgb(60, 60, 60); border-radius: 4px; border: 1px solid rgb(229, 229, 229); line-height: 1.3em; margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: white;">$ echo "deb http://nginx.org/packages/mainline/ubuntu/ `lsb_release -cs` nginx" >> /etc/apt/sources.list
</span><span style="color: lime;">$ echo "deb-src http://nginx.org/packages/mainline/ubuntu/ `lsb_release -cs` nginx"  >> /etc/apt/sources.list<span style="font-size: 0.9em;">
</span></span></pre>
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and use the following commands to install Nginx web server.</div>
<pre style="background: none 0px 0px repeat scroll rgb(60, 60, 60); border-radius: 4px; border: 1px solid rgb(229, 229, 229); line-height: 1.3em; margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: white;">$ curl http://nginx.org/keys/nginx_signing.key | apt-key add -
$ sudo apt-get update
$ sudo apt-get </span><span style="color: lime;">install nginx</span><span style="color: white; font-size: 0.9em;">
</span></pre>
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<span style="color: #0b5394;">Step 3 — Install <a href="http://www.hackthesec.co.in/search/label/Mysql">MySQL </a>5.6</span></h2>
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Use the following commands to install or upgrade MySQL 5.6 on your Ubuntu systems. At the last update of this tutorial <a href="http://www.hackthesec.co.in/search/label/Mysql">MySQL </a>5.6.27 is latest available MySQL version in series of MySQL 5.6.X.</div>
<pre style="background: none 0px 0px repeat scroll rgb(60, 60, 60); border-radius: 4px; border: 1px solid rgb(229, 229, 229); line-height: 1.3em; margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: lime;">$ sudo add-apt-repository -y ppa:ondrej/mysql-5.6
</span><span style="color: white;">$ sudo apt-get update
$ sudo apt-get install </span><span style="color: lime;">mysql-server-5.6</span><span style="color: white; font-size: 0.9em;">
</span></pre>
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<span style="color: #0b5394;">Step 4 — Install Other Requirements</span></h2>
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You may also need to install modules like PHP7-MySQL, etc based on your application requirements. Use the following command to find our available php 7 modules.</div>
<pre style="background: none 0px 0px repeat scroll rgb(60, 60, 60); border-radius: 4px; border: 1px solid rgb(229, 229, 229); line-height: 1.3em; margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: white;">$ sudo </span><span style="color: lime;">apt-cache search php7-* </span><span style="color: white; font-size: 0.9em;">
</span></pre>
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Above command will list all available PHP7 modules for installation, Let’s begin installation of modules.</div>
<pre style="background: none 0px 0px repeat scroll rgb(60, 60, 60); border-radius: 4px; border: 1px solid rgb(229, 229, 229); line-height: 1.3em; margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: white;">$ sudo apt-get install</span><span style="color: lime;"> php7.0-mysql php7.0-curl php7.0-json</span><span style="color: white;">
</span></pre>
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<span style="color: #0b5394;">Step 5 — Configure PHP-FPM</span></h2>
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PHP-FPM (FastCGI Process Manager) is an alternative PHP FastCGI implementation with some additional features.</div>
<pre style="background: none 0px 0px repeat scroll rgb(60, 60, 60); border-radius: 4px; border: 1px solid rgb(229, 229, 229); line-height: 1.3em; margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: white;">$ sudo nano /</span><span style="color: lime;">etc/php/7.0/fpm/php.ini</span><span style="color: white;">
</span></pre>
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<span style="color: red;">un-comment cgi.fix_pathinfo=1 </span>line and set value to 0.</div>
<pre class="pretty" style="background: none 0px 0px repeat scroll rgb(240, 240, 240); border-left-color: rgb(116, 183, 63); border-left-width: 3px; border-radius: 5px; border-style: none none none solid; line-height: 1.5em; margin-bottom: 20px; outline: 0px; overflow: auto; padding: 8px 20px 8px 18px; vertical-align: baseline;">cgi.fix_pathinfo=0
</pre>
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Now set the listen parameter in<span style="color: red;"> /etc/php/7.0/fpm/pool.d/www.conf</span> configuration file. Here you can use php7.0-fpm socket to work or start php7.0-fpm service on specific port. We are going to use it as service .</div>
<pre style="background: none 0px 0px repeat scroll rgb(60, 60, 60); border-radius: 4px; border: 1px solid rgb(229, 229, 229); line-height: 1.3em; margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: lime;">$ sudo nano /etc/php/7.0/fpm/pool.d/www.conf
</span></pre>
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Now make changes in configuration file as below. Commend listen with socket file and enable it as service</div>
<pre class="pretty" style="background: none 0px 0px repeat scroll rgb(240, 240, 240); border-left-color: rgb(116, 183, 63); border-left-width: 3px; border-radius: 5px; border-style: none none none solid; line-height: 1.5em; margin-bottom: 20px; outline: 0px; overflow: auto; padding: 8px 20px 8px 18px; vertical-align: baseline;">#listen = /run/php/php7.0-fpm.sock
listen = 127.0.0.1:9000<span style="font-size: 0.9em;">
</span></pre>
<h2 class="heading1" style="background-color: white; border: 0px; font-family: 'Roboto Slab'; font-size: 24px; font-weight: bolder; line-height: 34px; margin: 45px 0px 12px; opacity: 1; outline: 0px; padding: 0px; transition: opacity 0.24s ease-in-out; vertical-align: baseline; visibility: visible;">
<span style="color: #0b5394;">Step 6 — Configure Nginx VirtualHost</span></h2>
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Finally do the configuration of Nginx <b>virtualhost</b>. For this example we are editing default configuration file.</div>
<pre style="background: none 0px 0px repeat scroll rgb(60, 60, 60); border-radius: 4px; border: 1px solid rgb(229, 229, 229); color: white; line-height: 1.3em; margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;">$ sudo nano /etc/nginx/conf.d/default.conf
</pre>
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and make changes as below.</div>
<pre class="pretty" style="background: none 0px 0px repeat scroll rgb(240, 240, 240); border-left-color: rgb(116, 183, 63); border-left-width: 3px; border-radius: 5px; border-style: none none none solid; line-height: 1.5em; margin-bottom: 20px; outline: 0px; overflow: auto; padding: 8px 20px 8px 18px; vertical-align: baseline;">server {
        listen   80;
     
        root /var/www;
        index index.php index.html index.htm;
        server_name  example.com www.example.com;

location / {
                try_files $uri $uri/ /index.html;
        }

error_page 404 /404.html;
        error_page 500 502 503 504 /50x.html;
        location = /50x.html {
              root /usr/share/nginx/www;
        }

location ~ \.php$ {
                try_files $uri =404;
                fastcgi_pass 127.0.0.1:9000;
                fastcgi_index index.php;
                fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
                include fastcgi_params;
        }
}<span style="font-size: 0.9em;">
</span></pre>
<div style="background-color: white; border: 0px; font-family: 'Roboto Slab'; font-size: 16px; line-height: 28px; margin-bottom: 20px; outline: 0px; padding: 0px; vertical-align: baseline;">
You have to do the same changes in all VirtualHosts configured.</div>
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<span style="color: #0b5394;">Step 7 – Restart Services</span></h2>
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After installing all services on your system, start all required services.</div>
<pre style="background: none 0px 0px repeat scroll rgb(60, 60, 60); border-radius: 4px; border: 1px solid rgb(229, 229, 229); line-height: 1.3em; margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: white;">$ sudo service </span><span style="color: lime;">nginx restart</span><span style="color: white;">
$ sudo service php7.0-fpm restart</span><span style="color: white; font-size: 0.9em;">
</span></pre>
<h4 class="heading1" style="background-color: white; border: 0px; font-family: 'Roboto Slab'; font-size: 24px; font-weight: bolder; line-height: 34px; margin: 45px 0px 12px; opacity: 1; outline: 0px; padding: 0px; transition: opacity 0.24s ease-in-out; vertical-align: baseline; visibility: visible;">
<span style="color: #0b5394;">Step 8 – Open Access in Firewall</span></h4>
<div style="background-color: white; border: 0px; font-family: 'Roboto Slab'; font-size: 16px; line-height: 28px; margin-bottom: 20px; outline: 0px; padding: 0px; vertical-align: baseline;">
If you are using iptables, Use following commands to open port 80 for public access of webserver.</div>
<h3 class="heading2" style="background-color: white; border: 0px; color: #0379bf; font-family: 'Roboto Slab'; font-size: 20px; font-weight: bolder; line-height: 30px; margin: 0px 0px 8px; opacity: 1; outline: 0px; padding: 0px; transition: opacity 0.24s ease-in-out; vertical-align: baseline; visibility: visible;">
Iptables Users:</h3>
<pre style="background: none 0px 0px repeat scroll rgb(60, 60, 60); border-radius: 4px; border: 1px solid rgb(229, 229, 229); line-height: 1.3em; margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: white;">$ sudo </span><span style="color: lime;">iptables -A INPUT -m state</span><span style="color: white;"> --state NEW -p tcp --dport 80 -j ACCEPT
</span></pre>
<h3 class="heading2" style="background-color: white; border: 0px; font-family: 'Roboto Slab'; font-size: 20px; font-weight: bolder; line-height: 30px; margin: 0px 0px 8px; opacity: 1; outline: 0px; padding: 0px; transition: opacity 0.24s ease-in-out; vertical-align: baseline; visibility: visible;">
<span style="color: #0b5394;">UFW Users:</span></h3>
<pre style="background: none 0px 0px repeat scroll rgb(60, 60, 60); border-radius: 4px; border: 1px solid rgb(229, 229, 229); line-height: 1.3em; margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: white;">$ sudo ufw </span><span style="color: lime;">allow 80/tcp</span><span style="color: white;">
</span></pre>
<h2 class="heading1" style="background-color: white; border: 0px; font-family: 'Roboto Slab'; font-size: 24px; font-weight: bolder; line-height: 34px; margin: 45px 0px 12px; opacity: 1; outline: 0px; padding: 0px; transition: opacity 0.24s ease-in-out; vertical-align: baseline; visibility: visible;">
<span style="color: #0b5394;">Step 9 – Verify Setup</span></h2>
<div style="background-color: white; border: 0px; font-family: 'Roboto Slab'; font-size: 16px; line-height: 28px; margin-bottom: 20px; outline: 0px; padding: 0px; vertical-align: baseline;">
Finally verify installation of <b>PHP </b>7 with <b>NGINX</b>. Let’s create a file info.php on website document root using following content.</div>
<pre class="brush: php; title: ; notranslate" style="background: none 0px 0px repeat scroll rgb(60, 60, 60); border-radius: 4px; border: 1px solid rgb(229, 229, 229); line-height: 1.3em; margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;" title=""><span style="color: white;"><?php
</span><span style="color: lime;">phpinfo</span><span style="color: white;">();
?></span><span style="color: white; font-size: 0.9em;">
</span></pre>
<div style="background-color: white; border: 0px; font-family: 'Roboto Slab'; font-size: 16px; line-height: 28px; margin-bottom: 20px; outline: 0px; padding: 0px; vertical-align: baseline;">
Now browse this file in web browser. It will so all the details about version’s and installation.</div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgx27C8O3dNXYWtJhKhrFVn91qyyDOlw4VYlXq9CzhhefbSmktpFqePVGOriL45fTA8P9zl7raaLXtGFXyNM0iHW0QxC4It9BE3Eeul157lpojZ7CEMX3CeUXGO17ukhCtLC4XHAZbYv-b9/s1600/nginx-wih-php7_www.hackthesec.co.in.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="420" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgx27C8O3dNXYWtJhKhrFVn91qyyDOlw4VYlXq9CzhhefbSmktpFqePVGOriL45fTA8P9zl7raaLXtGFXyNM0iHW0QxC4It9BE3Eeul157lpojZ7CEMX3CeUXGO17ukhCtLC4XHAZbYv-b9/s640/nginx-wih-php7_www.hackthesec.co.in.png" width="640" /></a></div>
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How to Install PHP 7, NGINX & MySQL on Ubuntu 15.10 & 14.04

Install PHP 7, NGINX & MySQL on Ubuntu The latest major release of PHP version 7.0 has been released with lots of speed optimizations and security. So you should try this version for your development…

06 Feb 2016

FTPShell Client-(Create NewFolder) Local Buffer Overflow

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FTPShell Client 5.24 - (Create NewFolder) Local Buffer Overflow</h1>
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<tr style="background-color: rgb(248, 248, 248) !important; box-sizing: border-box;"><td style="box-sizing: border-box; padding: 5px 10px;"><br /></td><td style="box-sizing: border-box; padding: 5px 10px;"><strong style="box-sizing: border-box;">Download Exploit:</strong> <a href="https://goo.gl/qeXS7g" style="-webkit-transition-duration: 0.3s; -webkit-transition-property: background-color, box-shadow, border, color, opacity; background-color: transparent; box-sizing: border-box; color: #337ab7; outline: 0px; text-decoration: none; transition-duration: 0.3s; transition-property: background-color, box-shadow, border, color, opacity;"><span class="fa fa-file-code-o" style="-webkit-font-smoothing: antialiased; box-sizing: border-box; display: inline-block; font-family: FontAwesome; font-size: inherit; font-stretch: normal; line-height: 1; text-rendering: auto;"></span> Source</a> <a href="https://www.blogger.com/null" style="-webkit-transition-duration: 0.3s; -webkit-transition-property: background-color, box-shadow, border, color, opacity; background-color: transparent; box-sizing: border-box; color: #337ab7; outline: 0px; transition-duration: 0.3s; transition-property: background-color, box-shadow, border, color, opacity;"><span class="fa fa-file-o" style="-webkit-font-smoothing: antialiased; box-sizing: border-box; display: inline-block; font-family: FontAwesome; font-size: inherit; font-stretch: normal; line-height: 1; text-rendering: auto;"></span> </a></td><td style="box-sizing: border-box; padding: 5px 10px;"></td></tr>
<tr style="background-color: rgb(248, 248, 248) !important; box-sizing: border-box;"><td style="box-sizing: border-box; padding: 5px 10px;"><br /><span class="fa fa-times" style="-webkit-font-smoothing: antialiased; box-sizing: border-box; display: inline-block; font-family: FontAwesome; font-size: inherit; font-stretch: normal; line-height: 1; text-rendering: auto;"></span></td><td style="box-sizing: border-box; padding: 5px 10px;"><strong style="box-sizing: border-box;">Author:</strong> Arash Khazaei</td><td style="box-sizing: border-box; padding: 5px 10px;"><br /></td></tr>
<tr style="background-color: rgb(248, 248, 248) !important; box-sizing: border-box;"><td style="box-sizing: border-box; padding: 5px 10px;"><br /></td><td colspan="2" style="box-sizing: border-box; padding: 5px 10px;"><a href="http://www.hackthesec.co.in/">HackTheSec</a><br /><a href="https://www.twitter.com/hackthesecurity">HackTheSec-Twitter</a></td></tr>
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FTPShell Client-(Create NewFolder) Local Buffer Overflow

FTPShell Client 5.24 - (Create NewFolder) Local Buffer Overflow Download Exploit: Source Author: Arash Khazaei HackTheSecHackTheSec-Twitter …

05 Feb 2016

How to Mount Google drive in Ubuntu 14.04 LTS

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<span style="color: red; font-size: large;"><b><u>Google drive in Ubuntu 14.04 LTS</u></b></span><br />
<span style="color: red; font-size: large;"><b><u><br /></u></b></span>
Google has not released its official <b>linux</b> client for accessing its drive from the <b>ubuntu</b>. But open source community has developed unofficial package called ‘<b>grive-tools</b>‘.<br />
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Grive is a <b><span style="color: blue;">Google Drive</span></b> (<span style="color: red;">online storage service</span>) client for <b>GNU/Linux</b> systems.It allows the <b>synchronization</b> of all your files on the cloud with a directory of your choice and the upload of new files to Google Drive.<br />
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<b><u><span style="color: #0b5394; font-size: large;">Installation Steps of grive-tools</span></u></b><br />
<b><u><span style="color: #0b5394; font-size: large;"><br /></span></u></b>
<span style="color: #0b5394;">Step:1</span> Add grive-tools PPA using below Command :<br />
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$ <span style="color: #783f04;">sudo add-apt-repository ppa:thefanclub/grive-tools</span><br />
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<span style="color: #0b5394;">Step:2</span> Update the list<br />
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$ <span style="color: #783f04;">sudo apt-get update</span><br />
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<span style="color: #0b5394;">Step:3</span> Install grive-tools<br />
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$ <span style="color: #783f04;">sudo apt-get install grive-tools</span><br />
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<span style="color: #0b5394; font-size: large;">Steps to Access Google Drive</span><br />
<span style="color: #0b5394;">Step:1</span> Once the installation is completed , search the application on the <b>Unity Dash </b>by typing <b>Grive</b>, and open it.<br />
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<span style="color: #0b5394;">Step:2</span> Sign in to google drive , you will be asked to give the permissions to access google drive<br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhMLt4Xn05o6Zhvv6d7FnX06b6ERrvydDTfI2dLCNhXRYhl3UObbCuWtJT3HS0No2Vej5Pi9o_0T5LdEcT77uD4OoGEJkJj9U8-I71J20IoFXZFYFxYxsdvYWkB5RX7mE6w3c_5i8b727h4/s1600/gdrive_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/AVvXsEhMLt4Xn05o6Zhvv6d7FnX06b6ERrvydDTfI2dLCNhXRYhl3UObbCuWtJT3HS0No2Vej5Pi9o_0T5LdEcT77uD4OoGEJkJj9U8-I71J20IoFXZFYFxYxsdvYWkB5RX7mE6w3c_5i8b727h4/s1600/gdrive_www.hackthesec.co.in.png" /></a></div>
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When we click on Next, a new broswer will open with <b>Google login page</b><br />
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<b>Log in to your Google Account and Click on Accept , as shown below</b> :<br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhFh6D1vvZGbs5VWT3Y3w_K_XIVTzmxoLah05rzAXOJ_PHv9Qu5rH96-IwUHsYtdkgNL-qQZcEfwWCK6Y1s9_LhXkbUeigRwEQkrxaJWIH65y76ZrxNxplRlQyjt2SbgmtvmF91k4XflJW6/s1600/thrid-party-grive_www.hackthesec.co.in.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="293" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhFh6D1vvZGbs5VWT3Y3w_K_XIVTzmxoLah05rzAXOJ_PHv9Qu5rH96-IwUHsYtdkgNL-qQZcEfwWCK6Y1s9_LhXkbUeigRwEQkrxaJWIH65y76ZrxNxplRlQyjt2SbgmtvmF91k4XflJW6/s640/thrid-party-grive_www.hackthesec.co.in.jpg" width="640" /></a></div>
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<span style="color: #0b5394;">Step:3</span> You will be provided a <b>google code</b> , copy this code and paste it into the <b>Grive Setup box</b>.<br />
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When we Click on Next , it will start syncing your google drive with ‘<b> Google Drive‘</b> folder under your’s <b>home directory</b>. Below window will appear when the installation is completed.<br />
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<b>Google Drive</b> folder created under <b>user’s home directory</b><br />
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How to Mount Google drive in Ubuntu 14.04 LTS

Google drive in Ubuntu 14.04 LTS Google has not released its official linux client for accessing its drive from the ubuntu. But open source community has developed unofficial package called ‘grive-to…

04 Feb 2016

How to install Docker on CentOS 7 / RHEL 7

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<span style="color: red; font-size: x-large;"><u><i>Install Docker on CentOS 7/RHEL7</i></u></span><br />
Docker is an <b>open-source tool that makes creating</b> & <b>managing Linux containers</b>(LXC) easy. Containers are like lightweight <b>VMs which can be started</b> & stopped in milliseconds. Dockers help the system admin & coders to develop their application in a container and can further scale up to 1000 of nodes.<br />
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The main difference between container and <b>VM</b>(<b>Virtual machine</b>) is that dockers provide process based isolation , whereas VM provides full isolation of resources. Virtual machine takes a minute to start where as container can be started in a second or less than a second. Container uses the Kernel of host OS , whereas <b>VM</b> uses the separate Kernel.<br />
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One of the limitation of <b>Docker</b> is that it can be used only on<b> 64bit hosts OS</b>.<br />
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<span style="color: #073763; font-size: large;">Installation of Docker on CentOS 7</span><br />
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Docker package is included in the default <a href="http://www.hackthesec.co.in/search/label/Centos">CentOS</a>-Extras repository. So to install docker , simply run below yum command :<br />
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<span style="background-color: black;">[<span style="color: white;">root@localhost ~]# yum install docker</span></span><br />
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<span style="color: #0b5394; font-size: large;"><u>Start the Docker Service</u></span><br />
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Once the Installation is finished , start docker service and enable it at boot using below commands<br />
<span style="background-color: black;"><br /></span>
<span style="background-color: black;"><span style="color: white;">[root@localhost ~]# service docker start</span></span><br />
<span style="background-color: black;"><span style="color: white;">[root@localhost ~]# chkconfig docker on</span></span><br />
<span style="background-color: black; color: white;"><br /></span>
Download the official <a href="http://www.hackthesec.co.in/search/label/Centos">Centos</a> images Locally<br />
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<div style="text-align: justify;">
[root@localhost ~]# <span style="color: blue;">docker pull centos</span></div>
<div style="text-align: justify;">
Pulling repository centos</div>
<div style="text-align: justify;">
192178b11d36: Download complete </div>
<div style="text-align: justify;">
70441cac1ed5: Download complete </div>
<div style="text-align: justify;">
ae0c2d0bdc10: Download complete </div>
<div style="text-align: justify;">
511136ea3c5a: Download complete </div>
<div style="text-align: justify;">
5b12ef8fd570: Download complete</div>
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<div style="text-align: justify;">
<b> Verify CentOS images that have been fetched :</b></div>
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<b>[root@localhost ~]# docker images centos</b></div>
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<b>REPOSITORY          TAG                 IMAGE ID            CREATED             VIRTUAL SIZE</b></div>
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<b>centos                         centos5             192178b11d36        2 weeks ago         466.9 MB</b></div>
<div style="text-align: justify;">
<b>centos                         centos6             70441cac1ed5        2 weeks ago         215.8 MB</b></div>
<div style="text-align: justify;">
<b>centos                         centos7             ae0c2d0bdc10        2 weeks ago         224 MB</b></div>
<div style="text-align: justify;">
<b></b></div>
<div style="text-align: justify;">
<b>centos                          latest              ae0c2d0bdc10        2 weeks ago         224 MB</b></div>
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<u><b>Run a Docker Container :</b></u><br />
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<span style="color: #cc0000;">[root@localhost ~]# <b>docker run -i -t centos /bin/bash</b></span><br />
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<span style="color: #cc0000;">[root@dbf66395436d /]#</span><br />
<span style="color: #990000;"><br /></span>
As we can see centos container has been started and we got the bash shell. In docker command we have used options like ‘-i attaches stdin and stdout’ and ‘-t allocates a terminal or console’ . To disconnect from container type exit .<br />
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<span style="color: red;">[root@cd05639b3f5c /]# <b>cat /etc/</b></span><span style="color: #351c75;"><b>redhat-release</b> </span><br />
<span style="color: #0c343d;">CentOS Linux release 7.0.1406 (Core) </span><br />
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<u><b>We can also search Containers based on fedora & ubuntu OS.</b></u><br />
<br />
<span style="color: red;">[root@localhost ~]# <b>docker search </b></span><span style="color: #7f6000;"><b>ubuntu</b></span><br />
<span style="color: red;">[root@localhost ~]# <b>docker search </b></span><span style="color: #7f6000;"><b>fedora</b></span><br />
<span style="color: #7f6000;"><b><br /></b></span>
<span style="color: #7f6000;"><b><br /></b></span>
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How to install Docker on CentOS 7 / RHEL 7

Install Docker on CentOS 7/RHEL7 Docker is an open-source tool that makes creating & managing Linux containers(LXC) easy. Containers are like lightweight VMs which can be started & stopped in millise…

04 Feb 2016

Single Node OpenStack (Liberty) Installation Steps on CentOS 7/RHEL

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<span style="color: #990000; font-size: large;"><u style="font-weight: normal;"><i>OpenStack (Liberty) Installation Steps on CentOS 7/RHEL7</i></u></span></h1>
<span class="vcard"><a class="fn" expr:href="data:post.authorProfileUrl" href="https://www.blogger.com/null" rel="author"><data:post .author=""></data:post></a></span>

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OpenStack is a Cloud Software that manage large pool of compute (hypervisors), storage ( block & swift ) and network resources of a data center. It provides a Dashboard where admins can create and manage Projects (Tenants ) and give appropriate access to the project members , further on Project members can create VMs (Virtual Machine).</div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjhrWIiKLfueILSMOxyURYYq3W62jNOvNV_zdMibF85Czcepcg_5_emDC4r34sCUutaZ2rqjT4myB6dB7B2Oy7cH-FyDJQI1qbjcNGlCeG833cDZasAIt5J9fsGIGTSzNq79JjEO-BBSGyO/s1600/red-hat-enterprise-linux-openstack-platform-www.hackthesec.co.in.jpg" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" height="198" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjhrWIiKLfueILSMOxyURYYq3W62jNOvNV_zdMibF85Czcepcg_5_emDC4r34sCUutaZ2rqjT4myB6dB7B2Oy7cH-FyDJQI1qbjcNGlCeG833cDZasAIt5J9fsGIGTSzNq79JjEO-BBSGyO/s200/red-hat-enterprise-linux-openstack-platform-www.hackthesec.co.in.jpg" width="200" /></a></div>
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In this article we will install latest version of OpenStack ‘<span style="border: 0px; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: 600; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;">Liberty’</span> on <a href="http://www.hackthesec.co.in/search/label/Centos">CentOS</a> 7 using <span style="border: 0px; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: 600; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;">rdo repositories</span>. As per my setup i am using followings on my <a href="http://www.hackthesec.co.in/search/label/Centos">CentOS</a> 7 Machine</div>
<ul style="background-color: white; border: 0px; font-family: 'PT Serif', serif; font-size: 16px; font-stretch: inherit; line-height: 22.3999996185303px; list-style: none; margin: 0px 0px 15px 30px; padding: 0px; vertical-align: baseline;">
<li style="border: 0px; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; line-height: inherit; list-style: square; margin: 0px; padding: 0px; vertical-align: baseline;"><b>Hostname = openstack.example.com</b></li>
<li style="border: 0px; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; line-height: inherit; list-style: square; margin: 0px; padding: 0px; vertical-align: baseline;"><b>IP address = 192.168.1.3</b></li>
<li style="border: 0px; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; line-height: inherit; list-style: square; margin: 0px; padding: 0px; vertical-align: baseline;"><b>netmask = 255.255.255.0</b></li>
<li style="border: 0px; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; line-height: inherit; list-style: square; margin: 0px; padding: 0px; vertical-align: baseline;"><b>Gateway = 192.168.1.1</b></li>
<li style="border: 0px; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; line-height: inherit; list-style: square; margin: 0px; padding: 0px; vertical-align: baseline;"><b>DNS = 192.168.1.254</b></li>
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<span style="border: 0px; 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;"><span style="color: #0b5394;">Step:1 Set the hostname.</span></span></h4>
<pre style="background: rgb(54, 54, 54); border-radius: 7px; border: 1px solid rgb(221, 221, 221); font-stretch: inherit; line-height: 19px; margin-bottom: 15px; margin-top: 15px; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: "trebuchet ms" , sans-serif;"><span style="color: white;">[root@localhost ~]# </span><span style="color: lime;">hostnamectl</span><span style="color: white;"> set-hostname "openstack.example.com"</span></span></pre>
<h4 style="background-color: white; border: 0px; font-family: 'PT Serif', serif; font-size: 24px; font-stretch: inherit; font-weight: 400; letter-spacing: -0.3px; line-height: 1.3em; margin: 0px 0px 14px; padding: 0px; vertical-align: baseline; word-wrap: break-word;">
<span style="border: 0px; 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;"><span style="color: #0b5394;">Step:2 Set the Selinux in Permissive Mode</span></span></h4>
<pre style="background: rgb(54, 54, 54); border-radius: 7px; border: 1px solid rgb(221, 221, 221); font-stretch: inherit; line-height: 19px; margin-bottom: 15px; margin-top: 15px; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: "verdana" , sans-serif;"><span style="color: white;">[root@localhost ~]# </span><span style="color: lime;">setenforce</span><span style="color: white;"> 0</span></span></pre>
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Edit the selinux config file ( <span style="border: 0px; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: 600; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;"><span style="color: red;">/etc/sysconfig/selinux</span></span> ) and set “<span style="border: 0px; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: 600; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;"><span style="color: red;">SELINUX=permissive</span></span>”</div>
<pre style="background: rgb(54, 54, 54); border-radius: 7px; border: 1px solid rgb(221, 221, 221); font-stretch: inherit; line-height: 19px; margin-bottom: 15px; margin-top: 15px; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: "verdana" , sans-serif;"><span style="color: white;">[root@localhost ~]# grep permissive /etc/sysconfig/selinux
</span><span style="color: lime;">SELINUX=permissive</span><span style="color: white;">
</span></span><span style="color: white; font-family: "monaco" , "courier new" , "dejavu sans mono" , "bitstream vera sans mono" , monospace; font-size: 12px;">
</span></pre>
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<span style="border: 0px; 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;"><span style="color: #0b5394;">Step:3 Disable firewalld & NetworkManager Service</span></span></h4>
<pre style="background: rgb(54, 54, 54); border-radius: 7px; border: 1px solid rgb(221, 221, 221); font-stretch: inherit; line-height: 19px; margin-bottom: 15px; margin-top: 15px; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: "verdana" , sans-serif;"><span style="color: white;">[root@openstack ~]# </span><span style="color: lime;">systemctl stop firewalld</span><span style="color: white;">
[root@openstack ~]# systemctl disable firewalld
Removed symlink /etc/systemd/system/dbus-org.fedoraproject.FirewallD1.service.
</span><span style="color: lime;">Removed symlink /etc/systemd/system/basic.target.wants/firewalld.service.
</span><span style="color: white;">[root@openstack ~]#
[root@openstack ~]# systemctl stop NetworkManager
[root@openstack ~]# systemctl disable NetworkManager
Removed symlink /etc/systemd/system/multi-user.target.wants/NetworkManager.service.
</span><span style="color: lime;">Removed symlink /etc/systemd/system/dbus-org.freedesktop.NetworkManager.service.
</span><span style="color: white;">Removed symlink /etc/systemd/system/dbus-org.freedesktop.nm-dispatcher.service.</span></span><span style="color: white; font-family: "monaco" , "courier new" , "dejavu sans mono" , "bitstream vera sans mono" , monospace; font-size: 12px;">
</span></pre>
<h4 style="background-color: white; border: 0px; font-family: 'PT Serif', serif; font-size: 24px; font-stretch: inherit; font-weight: 400; letter-spacing: -0.3px; line-height: 1.3em; margin: 0px 0px 14px; padding: 0px; vertical-align: baseline; word-wrap: break-word;">
<span style="border: 0px; 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;"><span style="color: #0b5394;">Step:4 Enable rdo repository for liberty packages.</span></span></h4>
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Use below commands to update the system and enable rdo repository</div>
<pre style="background: rgb(54, 54, 54); border-radius: 7px; border: 1px solid rgb(221, 221, 221); font-stretch: inherit; line-height: 19px; margin-bottom: 15px; margin-top: 15px; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: "verdana" , sans-serif;"><span style="color: white;">[root@openstack ~]# yum update -y
</span><span style="color: lime;">[root@openstack ~]# yum install -y https://www.rdoproject.org/repos/rdo-release.rpm</span></span></pre>
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<span style="border: 0px; 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;"><span style="color: #0b5394;">Step:5 Install OpenStack PackStack Package</span></span></h4>
<pre style="background: rgb(54, 54, 54); border-radius: 7px; border: 1px solid rgb(221, 221, 221); font-stretch: inherit; line-height: 19px; margin-bottom: 15px; margin-top: 15px; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: "verdana" , sans-serif;"><span style="color: white;">[root@openstack ~]# yum install -y </span><span style="color: lime;">openstack-packstack</span></span></pre>
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Generate the answer file using below command.</div>
<pre style="background: rgb(54, 54, 54); border-radius: 7px; border: 1px solid rgb(221, 221, 221); font-stretch: inherit; line-height: 19px; margin-bottom: 15px; margin-top: 15px; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: "verdana" , sans-serif;"><span style="color: lime;">[root@openstack ~]# packstack --gen-answer-file=/root/answer.txt
</span><span style="color: white;">Packstack changed given value to required value /root/.ssh/id_rsa.pub</span></span></pre>
<div style="background-color: white; border: 0px; font-family: 'PT Serif', serif; font-size: 16px; font-stretch: inherit; line-height: 22.3999996185303px; margin-bottom: 1em; padding: 0px; vertical-align: baseline;">
Edit the answer file <span style="color: red;">“<span style="border: 0px; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: 600; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;">/root/answer.txt</span>”</span> , set the following parameters and leave rest of parameters as it is.</div>
<pre style="background: rgb(54, 54, 54); border-radius: 7px; border: 1px solid rgb(221, 221, 221); font-stretch: inherit; line-height: 19px; margin-bottom: 15px; margin-top: 15px; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: "courier new" , "courier" , monospace;"><span style="color: white;"># NTP Server
CONFIG_NTP_SERVERS=<NTP_Server_IP>

# Disable Demo Version
CONFIG_PROVISION_DEMO=n

# Set KeyStone Admin Password or Admin user Password
</span><span style="color: lime;">CONFIG_KEYSTONE_ADMIN_PW=<password>
</span><span style="color: white;">
# Config Horizon over SSL
CONFIG_HORIZON_SSL=y

# Disable Nagios
</span><span style="color: lime;">CONFIG_NAGIOS_INSTALL=n</span></span></pre>
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Note : In case if you don’t have NTP server in your setup then you can leave NTP parameter as it is.</div>
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<span style="border: 0px; 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;"><span style="color: #0b5394;">Step:6 Start OpenStack installation using answer file.</span></span></h4>
<pre style="background: rgb(54, 54, 54); border-radius: 7px; border: 1px solid rgb(221, 221, 221); font-stretch: inherit; line-height: 19px; margin-bottom: 15px; margin-top: 15px; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: "verdana" , sans-serif;"><span style="color: white;">[root@openstack ~]# packstack --answer-file</span><span style="color: lime;"> /root/answer.txt</span></span></pre>
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Once the installation is completed , we will get below message.</div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiue_jPBMrg_YicaI62snWLpYKxRV-OUh2QUtS24dGna6mvCoy1pL_LnHp7dGPAnjhkjoweWMNX9buqZQpebTwCTcL5mLc1ngM32fTGkIdP3UGhqX-3n_w6Tm2945RLtvdbeOFMQavkcUDa/s1600/openstack-installation-packstack-www.hackthesec.co.in.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="299" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiue_jPBMrg_YicaI62snWLpYKxRV-OUh2QUtS24dGna6mvCoy1pL_LnHp7dGPAnjhkjoweWMNX9buqZQpebTwCTcL5mLc1ngM32fTGkIdP3UGhqX-3n_w6Tm2945RLtvdbeOFMQavkcUDa/s640/openstack-installation-packstack-www.hackthesec.co.in.jpg" width="640" /></a></div>
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After the installation a new interface <span style="color: red;">“<span style="border: 0px; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: 600; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;">br-ex</span>”</span> will be created and assign the IP addess of eth0 or enp0s3 to br-ex .</div>
<pre style="background: rgb(54, 54, 54); border-radius: 7px; border: 1px solid rgb(221, 221, 221); font-stretch: inherit; line-height: 19px; margin-bottom: 15px; margin-top: 15px; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: "verdana" , sans-serif;"><span style="color: white;">[root@openstack ~]# cd /etc/</span><span style="color: cyan;">sysconfig</span><span style="color: white;">/network-scripts/
[root@openstack network-scripts]# cp ifcfg-enp0s3 ifcfg-br-ex
[root@openstack network-scripts]# vi </span><span style="color: cyan;">ifcfg-enp0s3</span><span style="color: white;">
DEVICE=enp0s3
</span><span style="color: lime;">HWADDR="09:02:27:8E:EB:16"
</span><span style="color: white;">TYPE=OVSPort
DEVICETYPE=ovs
</span><span style="color: #cc0000;">OVS_BRIDGE=br-ex
</span><span style="color: white;">ONBOOT=yes

[root@openstack network-scripts]# </span><span style="color: lime;">vi ifcfg-br-ex</span><span style="color: white;">
DEVICE=br-ex
DEVICETYPE=ovs
TYPE=OVSBridge
</span><span style="color: lime;">BOOTPROTO=static
</span><span style="color: white;">IPADDR=192.168.1.3
NETMASK=255.255.255.0
GATEWAY=192.168.1.1
</span><span style="color: lime;">DNS1=192.168.1.254
</span><span style="color: white;">ONBOOT=yes</span></span></pre>
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In above files please change the IP details, Hardware address and Device name as per your setup.</div>
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When we restart the network service , it will add <span style="color: red;">“<span style="border: 0px; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: 600; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;">enp0s3</span>”</span> as a port in <span style="color: red;"><span style="border: 0px; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: 600; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;">br-ex OVS bridge</span>.</span></div>
<pre style="background: rgb(54, 54, 54); border-radius: 7px; border: 1px solid rgb(221, 221, 221); font-stretch: inherit; line-height: 19px; margin-bottom: 15px; margin-top: 15px; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: "verdana" , sans-serif;"><span style="color: white;">[root@openstack network-scripts]# </span><span style="color: red;">systemctl restart</span><span style="color: white;"> network
</span></span><span style="color: white;">
</span></pre>
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Please take a reboot and check whether settings are persistent or not.</div>
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<span style="border: 0px; 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;"><span style="color: #0b5394;">Step:7 Now Access OpenStack Dashboard.</span></span></h4>
<div style="background-color: white; border: 0px; font-family: 'PT Serif', serif; font-size: 16px; font-stretch: inherit; line-height: 22.3999996185303px; margin-bottom: 1em; padding: 0px; vertical-align: baseline;">
When the installation is completed a dashboard link was provided on the screen , in My Case it is <span style="color: red;"><b>“<span style="border: 0px; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;">https://192.168.1.3/dashboard”</span></b></span></div>
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Single Node OpenStack (Liberty) Installation Steps on CentOS 7/RHEL

OpenStack (Liberty) Installation Steps on CentOS 7/RHEL7 OpenStack is a Cloud Software that manage large pool of compute (hypervisors), storage ( block & swift ) and network resources of a data cente…

04 Feb 2016

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