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How to Install and Configure Nextcloud on CentOS 7 / RHEL 7

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<span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif; font-size: large;"><u>Install and Configure Nextcloud on CentOS / RHEL 7</u></span><br />
<span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif; font-size: large;"><u><br /></u></span>
<span style="font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;">Nextcloud is functionally very similar to the widely used Dropbox, with the primary functional difference being that Nextcloud is free and open-source, and thereby allowing anyone to install and operate it without charge on a private server. </span></span><br />
<span style="font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;"><br /></span></span>
<span style="font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;">In contrast to proprietary services like Dropbox, the open architecture allows adding additional functionality to the server in form of so-called applications.</span></span><br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjcCnuhnD5JV7hXxzNrLUGJBFH-PKLY7ZsM2-1VbEkPN_eAeh9DL0cSL4wpvR78lvHl1wFC8KR1fH0IwRLrfsBqb6u3mCUK7-MlaOt4jbni9Rbg1Rvt6BX4HXeBR_sC6ljsCd2TwTqxoi3l/s1600/nextcloud-hackthesec.co.in.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjcCnuhnD5JV7hXxzNrLUGJBFH-PKLY7ZsM2-1VbEkPN_eAeh9DL0cSL4wpvR78lvHl1wFC8KR1fH0IwRLrfsBqb6u3mCUK7-MlaOt4jbni9Rbg1Rvt6BX4HXeBR_sC6ljsCd2TwTqxoi3l/s1600/nextcloud-hackthesec.co.in.jpg" /></a></div>
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<span style="font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;">Nextcloud is an actively maintained fork of ownCloud.</span></span><br />
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<span style="font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;"><br /></span></span>
<span style="font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;"><b><u>Some of the Key features of Nextcloud are listed below:</u></b></span></span><br />
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<ul style="text-align: left;">
<li><span style="font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;">File access & sharing </span></span></li>
<li><span style="font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;">Security & control </span></span></li>
<li><span style="font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;">Mobile & desktop clients  </span></span></li>
<li><span style="font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;">External storage </span></span></li>
<li><span style="font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;">Calendar & Contacts  </span></span></li>
<li><span style="font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;">Secure audio & video calls</span></span></li>
<li><span style="font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;">Collabora Online Office</span></span></li>
<li><span style="font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;">Videos of Nextcloud in action</span></span></li>
</ul>
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<span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;"><b><u>Requirement to Install NextCloud on RHEL AND CENTOS</u></b></span></span></div>
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<span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;"><b><u><br /></u></b></span></span></div>
<span style="font-family: "verdana" , "geneva" , sans-serif; font-size: 15px;">Minimum of 512 MB RAM</span><br />
<span style="font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;">Web Server : Apache (httpd) / Nginx</span></span><br />
<span style="font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;">Database Server : MariaDB / MySQL / PostgreSQL</span></span><br />
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<span style="font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;">PHP 5.4 +</span></span><br />
<span style="font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;"><br /></span></span>
<span style="font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;">Installation</span></span><br />
<span style="font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;">========</span></span><br />
<span style="font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;">Use the below yum command to install Apache Web Server (httpd), PHP packages and its other dependent packages.</span></span><br />
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<span style="font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;">In the default CentOS and RHEL repositories PHP 5.4 packages are available</span></span><br />
<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;">yum install httpd php php-mysql sqlite php-dom php-mbstring php-gd php-pdo php-json php-xml php-zip php-gd curl php-curl php-mcrypt php-pear</pre>
<span style="font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;">Start and startup enable apache web service using this command</span></span><br />
<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;"><span style="color: white; font-family: monospace , serif;"><span style="font-size: 14px;">systemctl start httpd ; systemctl enable httpd</span></span></pre>
<span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;"><b><u>MariaDB database for Nextcloud</u></b></span></span><br />
<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;"><span style="color: white; font-family: monospace , serif;"><span style="font-size: 14px;">yum install -y mariadb-server mariadb</span></span></pre>
<span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;"><span style="background-color: white; font-size: 15px;"></span></span><br />
<span style="font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;">Start and startup enable MariaDB service using this command</span></span><br />
<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;"><span style="color: white; font-family: monospace , serif;"><span style="font-size: 14px;">systemctl start mariadb; systemctl enable mariadb</span></span></pre>
<span style="background-color: white; font-size: 15px;"><span style="font-family: "verdana" , "geneva" , sans-serif;">For set MariaDB root password use the following command</span></span><br />
<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;"><span style="color: white; font-family: monospace , serif;"><span style="font-size: 14px;">mysql_secure_installation</span></span></pre>
<span style="background-color: white;"><span style="font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;">After completed the MariaDB installation just create a database for next-cloud application for me my database name is "</span></span></span><span style="font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;"><b>nextcloud_db</b>".</span></span><br />
<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;"><span style="color: white; font-family: monospace , serif;"><span style="font-size: 14px;">[root@nextcloud ~]# mysql -u root -p
Enter password:
Welcome to the MariaDB monitor. Commands end with ; or \g.
Your MariaDB connection id is 10
Server version: 5.5.47-MariaDB MariaDB Server
Copyright (c) 2000, 2015, Oracle, MariaDB Corporation Ab and others.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
MariaDB [(none)]> create database nextcloud_db;
Query OK, 1 row affected (0.00 sec)
MariaDB [(none)]></span></span></pre>
<span style="background-color: white; font-size: 15px;"><span style="font-family: "verdana" , "geneva" , sans-serif;">Create a database user (<b>nxtuser</b>) and grant all the privileges to the user on the database "<b>nextcloud_db</b>"</span></span><br />
<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;"><span style="color: white; font-family: monospace , serif;"><span style="font-size: 14px;">MariaDB [(none)]> grant all on nextcloud_db.* to 'nxtuser'@'localhost' identified by 'Nextcloud@123#';
Query OK, 0 rows affected (0.00 sec)
MariaDB [(none)]> FLUSH PRIVILEGES;
Query OK, 0 rows affected (0.00 sec)
MariaDB [(none)]> exit
Bye
[root@nextcloud ~]#</span></span></pre>
<span style="background-color: white; font-size: 15px;"><span style="font-family: "verdana" , "geneva" , sans-serif;"><b><u>Download the latest version of NextCloud</u></b></span></span><br />
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<span style="font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;">First Install two packges on your server using bellow command</span></span><br />
<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;"><span style="color: white; font-family: monospace , serif;"><span style="font-size: 14px;">yum install wget bzip2 -y</span></span></pre>
<span style="font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;">After that download the file from nextcloud official website - <a href="https://download.nextcloud.com/server/releases/">ClickHere</a></span></span><br />
<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;"><span style="color: white; font-family: monospace , serif;"><span style="font-size: 14px;">wget https://download.nextcloud.com/server/releases/nextcloud-9.0.53.tar.bz2</span></span></pre>
<span style="background-color: white;"><span style="font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;">When your download is complete just extract the downloaded "<b>nextcloud-9.0.53.tar.bz2</b>" file to Web Server document root (/var/www/html) using bellow command.</span></span></span><br />
<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;"><span style="color: white; font-family: monospace , serif;"><span style="font-size: 14px;">tar -jxpvf nextcloud-9.0.53.tar.bz2 -C /var/www/html/</span></span></pre>
<span style="background-color: white; font-size: 15px;"><span style="font-family: "verdana" , "geneva" , sans-serif;">Set the required permissions on nextcloud directory and its sub directories and files</span></span><br />
<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;"><span style="color: white; font-family: monospace , serif;"><span style="font-size: 14px;">chown -R apache:apache nextcloud /var/www/html/nextcloud</span></span></pre>
<span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;">Open the ports in firewall for nextcloud (or you can stop the firewall) using bellow command.</span></span><br />
<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;"><span style="color: white; font-family: monospace , serif;"><span style="font-size: 14px;">[root@nextcloud ~]# firewall-cmd --permanent --zone=public --add-service=http
[root@nextcloud ~]# firewall-cmd --permanent --zone=public --add-service=https
[root@nextcloud ~]# firewall-cmd --reload</span></span></pre>
<span style="background-color: white; font-size: 15px;"><span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;">In my Case I am putting selinux in disabled mod  using below command you can use it as </span></span><span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;">permissive mod</span></span><br />
<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;"><span style="color: white; font-family: monospace , serif;"><span style="font-size: 14px;">setenforce 0</span></span></pre>
<span style="background-color: white;"><span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;">For Permanently disabled edit the following line and find this line"</span></span></span><span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;">SELINUX=enforcing" to disabled</span></span><br />
<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;"><span style="color: white; font-family: monospace , serif;"><span style="font-size: 14px;">vi /etc/sysconfig/selinux</span></span></pre>
<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;"><span style="color: white; font-family: monospace , serif;"><span style="font-size: 14px;"># This file controls the state of SELinux on the system.
# SELINUX= can take one of these three values:
#     enforcing - SELinux security policy is enforced.
#     permissive - SELinux prints warnings instead of enforcing.
#     disabled - No SELinux policy is loaded.
SELINUX=disabled
# SELINUXTYPE= can take one of these two values:
#     targeted - Targeted processes are protected,
#     mls - Multi Level Security protection.
SELINUXTYPE=targeted
</span></span></pre>
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<span style="font-family: monospace , serif;"><span style="font-size: 14px;"><b><u><br /></u></b></span></span></div>
<span style="font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;"><b><u>Now Access nextCloud portal from Web Browser</u></b></span></span><br />
<span style="font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;"><b><u><br /></u></b></span></span>
<span style="background-color: white; font-size: 15px;"><span style="font-family: "verdana" , "geneva" , sans-serif;">After Complete the nextcloud installation you can access it from your web browser using your system ip or server ip</span></span><br />
<span style="background-color: white; font-size: 15px;"><span style="font-family: "verdana" , "geneva" , sans-serif;"><br /></span></span>
<span style="background-color: white; font-size: 15px;"><span style="font-family: "verdana" , "geneva" , sans-serif;">In my case my server ip is - 192.168.2.251</span></span><br />
<span style="background-color: white; font-size: 15px;"><span style="font-family: "verdana" , "geneva" , sans-serif;"><br /></span></span>
<span style="background-color: white; font-size: 15px;"><span style="font-family: "verdana" , "geneva" , sans-serif;">Specify the user name as admin and password that you want to set, Select the Database type as MariaDB and mentioned the database name, database user and its credentials. Once you’re are done with settings then click on finish Setup.</span></span><br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjdUrqikKS0fdC9vlvzf9cX3bWfHm71ek6WelCDrecpcoLHugEpivoFl-Qhw5vVh5XP2fAWp0YrzONCRJrGDdgCfp03W2YewPc2SzHQ_CZwyyXnekMxKGxBGYZh94QRMM4Ns1uniGvdNm3P/s1600/nextcloud-gui-installation.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjdUrqikKS0fdC9vlvzf9cX3bWfHm71ek6WelCDrecpcoLHugEpivoFl-Qhw5vVh5XP2fAWp0YrzONCRJrGDdgCfp03W2YewPc2SzHQ_CZwyyXnekMxKGxBGYZh94QRMM4Ns1uniGvdNm3P/s1600/nextcloud-gui-installation.jpg" /></a></div>
<span style="background-color: white; color: #333333; font-family: "verdana" , "geneva" , sans-serif; font-size: 15px;"><br /></span>
<span style="background-color: white; font-size: 15px;"><span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;">Change the upload file size limit for nextcloud and restart the apache service</span></span><br />
<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;"><span style="color: white; font-family: monospace , serif;"><span style="font-size: 14px;">vi /etc/php.ini
============================
post_max_size = 30M
upload_max_filesize = 30M</span></span></pre>
<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;"><span style="color: white; font-family: monospace , serif;"><span style="font-size: 14px;">systemctl restart httpd</span></span></pre>
<span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;">Now start uploading the files and share with your contacts and whatever you want</span></span><br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg2PxEvhX1ArtRP5Fdy3pFhPQ8HeBKSsjGmEkn_A5A__-5WpoUcVJyaRfNioIJeS2gOK56ZBrqgZtA6oCilfDIimiMbdvu7ethxJtJXahn6xLwSeUsd7hiRGlNXTBIglUxhh9kh-QGR4n8N/s1600/nextcloud.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg2PxEvhX1ArtRP5Fdy3pFhPQ8HeBKSsjGmEkn_A5A__-5WpoUcVJyaRfNioIJeS2gOK56ZBrqgZtA6oCilfDIimiMbdvu7ethxJtJXahn6xLwSeUsd7hiRGlNXTBIglUxhh9kh-QGR4n8N/s1600/nextcloud.png" /></a></div>
<span style="background-color: white; color: #333333; font-family: "verdana" , "geneva" , sans-serif; font-size: 15px;"><br /></span>
<a class="g-profile" href="https://plus.google.com/113492055880844042777" target="_blank">+Linux Tutorial</a><br />
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How to Install and Configure Nextcloud on CentOS 7 / RHEL 7

Install and Configure Nextcloud on CentOS / RHEL 7 Nextcloud is functionally very similar to the widely used Dropbox, with the primary fu...

How Install OpenXenManager on Ubuntu 14.04 LTS

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<h1 class="entry-title" itemprop="headline" style="background-color: white; box-sizing: border-box; font-family: Raleway, sans-serif; font-size: 36px; line-height: 1; margin: 0px 0px 16px;">
<u><span style="color: #990000;">OpenXenManager on Ubuntu</span></u></h1>
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<span style="color: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">OpenXenManager is a graphical interface to manage XenServer / Xen Cloud Platform (XCP) hosts through the network. <b>OpenXenManager </b>is an open-source multiplatform clone of <b>XenCenter </b>(Citrix).</span></span></div>
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<span style="color: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><b><u>Features</u></b></span></span></div>
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<ul style="text-align: left;">
<li><span style="color: #333333; font-family: verdana, geneva, sans-serif; font-size: 15px; line-height: 26px;">xen console linux</span></li>
<li><span style="color: #333333; font-family: verdana, geneva, sans-serif; font-size: 15px; line-height: 26px;">xencenter linux</span></li>
<li><span style="color: #333333; font-family: verdana, geneva, sans-serif; font-size: 15px; line-height: 26px;">openxencenter</span></li>
<li><span style="color: #333333; font-family: verdana, geneva, sans-serif; font-size: 15px; line-height: 26px;">xencenter macosx</span></li>
<li><span style="color: #333333; font-family: verdana, geneva, sans-serif; font-size: 15px; line-height: 26px;">xcp gui</span></li>
<li><span style="color: #333333; font-family: verdana, geneva, sans-serif; font-size: 15px; line-height: 26px;">xcp frontend</span></li>
<li><span style="color: #333333; font-family: verdana, geneva, sans-serif; font-size: 15px; line-height: 26px;">xenserver frontend</span></li>
</ul>
<div>
<div style="color: #333333; font-family: verdana, geneva, sans-serif; font-size: 15px; line-height: 26px;">
<b><u>Requirements For OpenXenManager</u></b></div>
<div style="color: #333333; font-family: verdana, geneva, sans-serif; font-size: 15px; line-height: 26px;">
Following packages are required to run awesome OpenXenManager in your system. Keep make a note also, its script name is "<b>openxenmanager</b>" by which you will open the OpenXenManager in your system.</div>
<div style="font-family: verdana, geneva, sans-serif;">
<ul style="color: #333333; font-size: 15px; line-height: 26px; text-align: left;">
<li>Python 2.7</li>
<li>pyGTK 2.16</li>
<li>ConfigObj</li>
<li>GTK-VNC (<a href="http://www.hackthesec.co.in/search/label/Linux%20Tutorial">Linux </a>only)</li>
</ul>
<div>
<div style="color: #333333;">
<span style="font-size: 15px; line-height: 26px;"><b><u>Install OpenXenManager on Ubuntu 14.04 LTS</u></b></span></div>
<div style="color: #333333;">
<span style="font-size: 15px; line-height: 26px;">In this section we will do the installation of OpenXenManager on <a href="http://www.hackthesec.co.in/search/label/Ubuntu">Ubuntu</a> 14.04 LTS. Follow the given below steps –</span></div>
<div>
<span style="font-size: 15px; line-height: 26px;"><b><u><span style="color: #0b5394;">1. Update the repo</span></u></b></span></div>
</div>
</div>
<div>
<pre style="background-attachment: scroll; background-clip: initial; background-color: #3c3c3c; background-image: none; background-origin: initial; background-position: 0px 0px; background-repeat: repeat; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 4px; border: 1px solid rgb(229, 229, 229); margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: white; font-size: large;"><span style="line-height: 20.8px;">sudo apt-get update</span></span></pre>
</div>
<div>
<span style="color: #0b5394; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><b><u>2. Install Git</u></b></span></span></div>
<div>
<pre style="background-attachment: scroll; background-clip: initial; background-color: #3c3c3c; background-image: none; background-origin: initial; background-position: 0px 0px; background-repeat: repeat; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 4px; border: 1px solid rgb(229, 229, 229); margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: white; font-size: large;"><span style="line-height: 20.8px;">sudo apt-get install git</span></span></pre>
</div>
<div>
<span style="color: #0b5394; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><b><u>3. Install package dependences</u></b></span></span></div>
<div>
<pre style="background-attachment: scroll; background-clip: initial; background-color: #3c3c3c; background-image: none; background-origin: initial; background-position: 0px 0px; background-repeat: repeat; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 4px; border: 1px solid rgb(229, 229, 229); margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: white; font-size: large;"><span style="line-height: 20.8px;">sudo apt-get install python-gtk2 glade python-gtk-vnc python-glade2 python-configobj</span></span></pre>
</div>
<div>
<div>
<span style="color: #0b5394; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><b><u>4. Clone the repo from GitHub and install</u></b></span></span></div>
<div>
<span style="color: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">Clone the git repo by given below command</span></span></div>
</div>
<div>
<pre style="background-attachment: scroll; background-clip: initial; background-color: #3c3c3c; background-image: none; background-origin: initial; background-position: 0px 0px; background-repeat: repeat; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 4px; border: 1px solid rgb(229, 229, 229); margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: white;"><span style="font-size: 15px; line-height: 20.8px;">git clone https://github.com/OpenXenManager/openxenmanager.git</span></span></pre>
</div>
<div>
<span style="color: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">Now change to cloned repo directory</span></span></div>
<div>
<pre style="background-attachment: scroll; background-clip: initial; background-color: #3c3c3c; background-image: none; background-origin: initial; background-position: 0px 0px; background-repeat: repeat; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 4px; border: 1px solid rgb(229, 229, 229); margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: white;"><span style="font-size: 15px; line-height: 20.8px;">cd openxenmanager</span></span></pre>
</div>
<div>
<span style="color: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">Now install the package by running below given command. This will install the OpenXenManager in your system.</span></span></div>
<div>
<pre style="background-attachment: scroll; background-clip: initial; background-color: #3c3c3c; background-image: none; background-origin: initial; background-position: 0px 0px; background-repeat: repeat; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 4px; border: 1px solid rgb(229, 229, 229); margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: white;"><span style="font-size: 15px; line-height: 20.8px;">sudo python setup.py install</span></span></pre>
</div>
<div>
<div>
<span style="color: #0b5394; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><b><u>5. Run the OpenXenManager</u></b></span></span></div>
<div>
<span style="color: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">To open the GUI of OpenXenManager, simply run the command</span></span></div>
</div>
<div>
<pre style="background-attachment: scroll; background-clip: initial; background-color: #3c3c3c; background-image: none; background-origin: initial; background-position: 0px 0px; background-repeat: repeat; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 4px; border: 1px solid rgb(229, 229, 229); margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: white;"><span style="font-size: 15px; line-height: 20.8px;">openxenmanager</span></span></pre>
</div>
<div>
<span style="color: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">The OpenXenManager GUI will open. And now you can start working on. Connect with XenServer with the help of <b>OpenXenManager</b>.</span></span></div>
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How Install OpenXenManager on Ubuntu 14.04 LTS

OpenXenManager on Ubuntu OpenXenManager is a graphical interface to manage XenServer / Xen Cloud Platform (XCP) hosts through the netwo...

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>
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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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<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; text-align: justify; vertical-align: baseline;">
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>
</ul>
<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: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>
<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 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>
<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: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>
<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: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>
<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;">
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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<br /></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>
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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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