{"id":4699,"date":"2019-05-22T22:19:26","date_gmt":"2019-05-22T16:49:26","guid":{"rendered":"https:\/\/pheonixsolutions.com\/blog\/?p=4699"},"modified":"2019-05-22T22:27:31","modified_gmt":"2019-05-22T16:57:31","slug":"installation-guide-openvz-setup-in-centos-6","status":"publish","type":"post","link":"https:\/\/pheonixsolutions.com\/blog\/installation-guide-openvz-setup-in-centos-6\/","title":{"rendered":"Installation Guide &#8211; Openvz setup in centos 6"},"content":{"rendered":"\n<h4 class=\"wp-block-heading\">Installation Guide &#8211; Openvz setup in centos 6<\/h4>\n\n\n\n<h4 class=\"wp-block-heading\">Date Posted: 22\/ 05\/2019<\/h4>\n\n\n\n<h4 class=\"wp-block-heading\">Introduction<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">This article will guide you in installation of openvz on centos 6.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">OpenVZ is an OS level virtualization technology for Linux. Most importantly, it allows a physical server to run multiple operating systems on it. <\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Prior &#8211; Requirements<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Moreover,  use CentOS 6, Scientific Linux on your system.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For instance,  to use a separate partition for containers by default  \/<strong>vz<\/strong>  directory path.<\/p>\n\n\n\n<figure class=\"wp-block-image is-resized\"><img decoding=\"async\" src=\"https:\/\/encrypted-tbn0.gstatic.com\/images?q=tbn:ANd9GcRqFj2AN40kGwbImTLrR5RwG7eqgX-BZifBh5FeTmkNCGILBDkZ\" alt=\"Related image\" width=\"190\" height=\"189\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Step by step procedure to setup openvz<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">In addition, download openvz.repo file and put it to your<strong> \/etc\/yum.repos.d\/ <\/strong>repository <\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">wget -P \/etc\/yum.repos.d\/ https:\/\/download.openvz.org\/openvz.repo<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Therefore, import OpenVZ GPG key used for signing RPM packages, as shown below<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">rpm --import http:\/\/download.openvz.org\/RPM-GPG-Key-OpenVZ<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Similarly, the signed packages you should verify the fingerprint of the key you imported into the rpm key database as described on the Package signatures page.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Kernel installation<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">On the other hand OpenVZ containers have no kernel, so it uses VZkernel as common and OpenVZ containers cannot be operated using Linux kernel <\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># yum install vzkernel<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\">sysctl clarification<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">As a result, number of kernel parameters that should be set for OpenVZ to work correctly. Therefore parameters are stored in <strong>\/etc\/sysctl.conf file. <\/strong><\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">On Hardware Node we generally need\n packet forwarding enabled and proxy arp disabled\n net.ipv4.ip_forward = 1\n net.ipv6.conf.default.forwarding = 1\n net.ipv6.conf.all.forwarding = 1\n net.ipv4.conf.default.proxy_arp = 0\n Enables source route verification\n net.ipv4.conf.all.rp_filter = 1\n Enables the magic-sysrq key\n kernel.sysrq = 1\n We do not want all our interfaces to send redirects\n net.ipv4.conf.default.send_redirects = 1\n net.ipv4.conf.all.send_redirects = 0<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\">Disable SELinux<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">SELinux should be disabled. That is to say,\u00a0put <strong>SELINUX=disabled<\/strong> to \/<strong>etc\/sysconfig\/selinux<\/strong><\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Tools implementation<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Above all, it needs some user-level tools installed.<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># yum install vzctl vzquota ploop<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Further, reboot the machine and therefore choose \u201cOpenVZ\u201d on the boot loader menu.<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\n# reboot<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\">OS templates<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">To sum up, download precreated template caches from <strong>Downloads \u00bb Templates \u00bb Precreated<\/strong> or directly from <strong>download.openvz.org\/template\/precreated<\/strong>, or from one of the mirrors.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"> In short, Place those tar files  to the <strong>\/vz\/template\/cache\/<\/strong> directory.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Thanks for using&nbsp;<a href=\"https:\/\/pheonixsolutions.com\/\">pheonix solutions<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">You find this tutorial helpful? Share with your friends to keep it alive.<br><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Installation Guide &#8211; Openvz setup in centos 6 Date Posted: 22\/ 05\/2019 Introduction This article will guide you in installation 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