{"id":24181,"date":"2017-11-14T07:00:49","date_gmt":"2017-11-14T13:00:49","guid":{"rendered":"https:\/\/www.rosehosting.com\/blog\/?p=24181"},"modified":"2022-12-12T07:00:49","modified_gmt":"2022-12-12T13:00:49","slug":"how-to-install-openvpn-on-centos-7","status":"publish","type":"post","link":"https:\/\/www.rosehosting.com\/blog\/how-to-install-openvpn-on-centos-7\/","title":{"rendered":"How to Install OpenVPN on CentOS 7"},"content":{"rendered":"<div id=\"bsf_rt_marker\"><\/div><p><img decoding=\"async\" class=\"alignnone wp-image-24275 size-full\" src=\"https:\/\/www.rosehosting.com\/blog\/wp-content\/uploads\/2017\/11\/How-to-install-openVPN-on-CentOS-7.jpg\" alt=\"How to install openVPN on CentOS 7\" width=\"1200\" height=\"600\" srcset=\"https:\/\/www.rosehosting.com\/blog\/wp-content\/uploads\/2017\/11\/How-to-install-openVPN-on-CentOS-7.jpg 1200w, https:\/\/www.rosehosting.com\/blog\/wp-content\/uploads\/2017\/11\/How-to-install-openVPN-on-CentOS-7-150x75.jpg 150w, https:\/\/www.rosehosting.com\/blog\/wp-content\/uploads\/2017\/11\/How-to-install-openVPN-on-CentOS-7-300x150.jpg 300w, https:\/\/www.rosehosting.com\/blog\/wp-content\/uploads\/2017\/11\/How-to-install-openVPN-on-CentOS-7-768x384.jpg 768w, https:\/\/www.rosehosting.com\/blog\/wp-content\/uploads\/2017\/11\/How-to-install-openVPN-on-CentOS-7-1024x512.jpg 1024w, https:\/\/www.rosehosting.com\/blog\/wp-content\/uploads\/2017\/11\/How-to-install-openVPN-on-CentOS-7-860x430.jpg 860w, https:\/\/www.rosehosting.com\/blog\/wp-content\/uploads\/2017\/11\/How-to-install-openVPN-on-CentOS-7-680x340.jpg 680w, https:\/\/www.rosehosting.com\/blog\/wp-content\/uploads\/2017\/11\/How-to-install-openVPN-on-CentOS-7-500x250.jpg 500w, https:\/\/www.rosehosting.com\/blog\/wp-content\/uploads\/2017\/11\/How-to-install-openVPN-on-CentOS-7-400x200.jpg 400w, https:\/\/www.rosehosting.com\/blog\/wp-content\/uploads\/2017\/11\/How-to-install-openVPN-on-CentOS-7-200x100.jpg 200w, https:\/\/www.rosehosting.com\/blog\/wp-content\/uploads\/2017\/11\/How-to-install-openVPN-on-CentOS-7-50x25.jpg 50w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/p>\n<p>In this tutorial, we will show you how to install and configure an OpenVPN server on\u00a0 CentOS 7. OpenVPN is one of the most popular VPN software solutions that implements virtual private network techniques for creating secure point-to-point or site-to-site connections. This guide should work on other <a title=\"Linux VPS\" href=\"https:\/\/www.rosehosting.com\/\" target=\"_blank\" rel=\"noopener noreferrer\">Linux VPS<\/a> systems as well but was tested and written for an <a title=\"CentOS VPS Hosting\" href=\"https:\/\/www.rosehosting.com\/centos-hosting.html\" target=\"_blank\" rel=\"noopener noreferrer\">CentOS 7<\/a>. Installing openVPN on CentOS7 is an easy task, just carefully follow the steps bellow and you should have it done in less than 10 minutes.<\/p>\n<p><!--more--><\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-hierarchy ez-toc-counter ez-toc-transparent ez-toc-container-direction\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-69f0ee60f418d\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"ez-toc-cssicon\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-69f0ee60f418d\"  aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.rosehosting.com\/blog\/how-to-install-openvpn-on-centos-7\/#1-Login-to-your-VPS-via-SSH\" >1. Login to your VPS via SSH<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.rosehosting.com\/blog\/how-to-install-openvpn-on-centos-7\/#2-Update-the-system\" >2. Update the system<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.rosehosting.com\/blog\/how-to-install-openvpn-on-centos-7\/#3-Install-OpenVPN-on-CentOS-7\" >3. Install OpenVPN on CentOS 7<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.rosehosting.com\/blog\/how-to-install-openvpn-on-centos-7\/#4-Generate-local-certificate-authority\" >4. Generate local certificate authority<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.rosehosting.com\/blog\/how-to-install-openvpn-on-centos-7\/#5-Configure-OpenVPN-server\" >5. Configure OpenVPN server<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.rosehosting.com\/blog\/how-to-install-openvpn-on-centos-7\/#6-Create-OpenVPN-server-configuration-file\" >6. Create OpenVPN server configuration file<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.rosehosting.com\/blog\/how-to-install-openvpn-on-centos-7\/#7-Create-client-certificate-and-key\" >7. Create client certificate and key<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.rosehosting.com\/blog\/how-to-install-openvpn-on-centos-7\/#8-Start-OpenVPN-on-CentOS-7\" >8. Start OpenVPN on CentOS 7<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"1-Login-to-your-VPS-via-SSH\"><\/span>1. Login to your VPS via SSH<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<pre><code>ssh user@vps_IP<\/code><\/pre>\n<h2><span class=\"ez-toc-section\" id=\"2-Update-the-system\"><\/span>2. Update the system<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<pre><code>yum update<\/code><\/pre>\n<h2><span class=\"ez-toc-section\" id=\"3-Install-OpenVPN-on-CentOS-7\"><\/span>3. Install OpenVPN on CentOS 7<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>OpenVPN is not available in the official CentOS 7 repositories so first we need to add the EPEL repository and then install the package:<\/p>\n<p>To enable the Epel repository run the following command:<\/p>\n<pre><code>yum install epel-release<\/code><\/pre>\n<p>Once the repository is enabled install the openvpn and openssl packages:<\/p>\n<pre>yum install openvpn openssl<\/pre>\n<h2><span class=\"ez-toc-section\" id=\"4-Generate-local-certificate-authority\"><\/span>4. Generate local certificate authority<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>First, generate the Diffie-Hellman parameters (DH file) which is used to secure the key exchange between the server and the client. This command can take a while to run depending on the server.<\/p>\n<pre><code>openssl dhparam -out \/etc\/openvpn\/dh.pem 2048<\/code><\/pre>\n<p>Generate <code>ca.crt<\/code>\u00a0 (certificate authority) file:<\/p>\n<pre><code>openssl genrsa -out \/etc\/openvpn\/ca.key 2048\r\nchmod 600 \/etc\/openvpn\/ca.key\r\nopenssl req -new -key \/etc\/openvpn\/ca.key -out \/etc\/openvpn\/ca.csr -subj \/CN=OpenVPN-CA\/\r\nopenssl x509 -req -in \/etc\/openvpn\/ca.csr -out \/etc\/openvpn\/ca.crt -signkey \/etc\/openvpn\/ca.key -days 365\r\necho 01 &gt; \/etc\/openvpn\/ca.srl\r\n<\/code><\/pre>\n<h2><span class=\"ez-toc-section\" id=\"5-Configure-OpenVPN-server\"><\/span>5. Configure OpenVPN server<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Create server certificate and key with the following commands will generate a server certificate and key:<\/p>\n<pre><code>openssl genrsa -out \/etc\/openvpn\/server.key 2048\r\nchmod 600 \/etc\/openvpn\/server.key\r\nopenssl req -new -key \/etc\/openvpn\/server.key -out \/etc\/openvpn\/server.csr -subj \/CN=OpenVPN\/\r\nopenssl x509 -req -in \/etc\/openvpn\/server.csr -out \/etc\/openvpn\/server.crt -CA \/etc\/openvpn\/ca.crt -CAkey \/etc\/openvpn\/ca.key -days 365\r\n<\/code><\/pre>\n<h2><span class=\"ez-toc-section\" id=\"6-Create-OpenVPN-server-configuration-file\"><\/span>6. Create OpenVPN server configuration file<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>You can either copy and edit the default OpenVPN configuration or create a new one from scratch.<\/p>\n<pre><code>nano \/etc\/openvpn\/server.conf<\/code><\/pre>\n<pre><code>server 10.8.0.0 255.255.255.0\r\nverb 3\r\nkey \/etc\/openvpn\/server.key\r\nca \/etc\/openvpn\/ca.crt\r\ncert \/etc\/openvpn\/server.crt\r\ndh \/etc\/openvpn\/dh.pem\r\nkeepalive 10 120\r\npersist-key\r\npersist-tun\r\ncomp-lzo\r\npush \"redirect-gateway def1 bypass-dhcp\"\r\npush \"dhcp-option DNS 8.8.8.8\"\r\npush \"dhcp-option DNS 8.8.4.4\"\r\n\r\nuser nobody\r\ngroup nogroup\r\n\r\nproto udp\r\nport 1194\r\ndev tun1194\r\nstatus openvpn-status.log\r\n<\/code><\/pre>\n<p>save the file and enable and start the OpenVPN service with:<\/p>\n<pre><code>systemctl enable openvpn@server\r\nsystemctl start openvpn@server<\/code><\/pre>\n<p>Add the following <code>iptables<\/code> rule so that traffic can leave the VPN. Change the <code>eth0<\/code> with the public network interface of your server.<\/p>\n<pre>iptables -t nat -A POSTROUTING -s 10.8.0.0\/24 -o eth0 -j MASQUERADE<\/pre>\n<p><em>Note: If you are running an openvz based VPS<br \/>\ninstead of the rule above add: <code>iptables -t nat -A POSTROUTING -s 10.8.0.0\/24 -j SNAT --to-source YOUR_SERVER_IP<\/code>&gt;<br \/>\n<\/em><\/p>\n<p>Finally, we also need to allow IP forwarding:<\/p>\n<pre><code>sysctl -w net.ipv4.ip_forward=1<\/code><\/pre>\n<h2><span class=\"ez-toc-section\" id=\"7-Create-client-certificate-and-key\"><\/span>7. Create client certificate and key<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The following commands will generate a client certificate and key:<\/p>\n<pre><code>openssl genrsa -out \/etc\/openvpn\/client.key 2048\r\nchmod 600 \/etc\/openvpn\/client.key\r\nopenssl req -new -key \/etc\/openvpn\/client.key -out \/etc\/openvpn\/client.csr -subj \/CN=OpenVPN-Client\/\r\nopenssl x509 -req -in \/etc\/openvpn\/client.csr -out \/etc\/openvpn\/client.crt -CA \/etc\/openvpn\/ca.crt -CAkey \/etc\/openvpn\/ca.key -days 36525<\/code><\/pre>\n<p>Next, copy the following files to your client machine<\/p>\n<pre><code>\/etc\/openvpn\/ca.crt\r\n\/etc\/openvpn\/client.crt\r\n\/etc\/openvpn\/client.key\r\n<\/code><\/pre>\n<h2><span class=\"ez-toc-section\" id=\"8-Start-OpenVPN-on-CentOS-7\"><\/span>8. Start OpenVPN on CentOS 7<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>start your OpenVPN client with the following configuration.<\/p>\n<pre><code>client\r\nnobind\r\ndev tun\r\nredirect-gateway def1 bypass-dhcp\r\nremote YOUR_SERVER_IP 1194 udp\r\ncomp-lzo yes\r\nduplicate-cn\r\n\r\nkey \/etc\/openvpn\/client.key\r\ncert \/etc\/openvpn\/client.crt\r\nca \/etc\/openvpn\/ca.crt<\/code><\/pre>\n<p>Do not forget to change <code>YOUR_SERVER_IP\u00a0<\/code>with your OpenVPN server IP address.<\/p>\n<p>That\u2019s it. You have successfully installed a configured an OpenVPN server on your CentOS 7 VPS.<\/p>\n<hr \/>\n<p><img decoding=\"async\" class=\"alignleft size-full wp-image-26579\" src=\"https:\/\/www.rosehosting.com\/blog\/wp-content\/uploads\/2017\/11\/Install-OpenVPN-on-CentOS-7.png\" alt=\"Install OpenVPN on CentOS 7\" width=\"208\" height=\"54\" srcset=\"https:\/\/www.rosehosting.com\/blog\/wp-content\/uploads\/2017\/11\/Install-OpenVPN-on-CentOS-7.png 208w, https:\/\/www.rosehosting.com\/blog\/wp-content\/uploads\/2017\/11\/Install-OpenVPN-on-CentOS-7-150x39.png 150w, https:\/\/www.rosehosting.com\/blog\/wp-content\/uploads\/2017\/11\/Install-OpenVPN-on-CentOS-7-200x52.png 200w, https:\/\/www.rosehosting.com\/blog\/wp-content\/uploads\/2017\/11\/Install-OpenVPN-on-CentOS-7-50x13.png 50w\" sizes=\"(max-width: 208px) 100vw, 208px\" \/>Of course, you don\u2019t have to\u00a0install OpenVPN on CentOS 7, if you use one of our <a href=\"https:\/\/www.rosehosting.com\/centos-hosting.html\">CentOS 7\u00a0Linux VPS Hosting services<\/a>, in which case you can simply ask our expert Linux admins to\u00a0install OpenVPN on CentOS 7,\u00a0 for you. They are available 24&#215;7 and will take care of your request immediately.<\/p>\n<p><span style=\"color: #ff0000;\"><strong>PS<\/strong><\/span>. If you liked this post, on how to install OpenVPN on CentOS 7,\u00a0 please share it with your friends on the social networks using the buttons on the left or simply leave a reply below. Thanks.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In this tutorial, we will show you how to install and configure an OpenVPN server on\u00a0 CentOS 7. OpenVPN is &#8230; <\/p>\n<p class=\"read-more-container\"><a title=\"How to Install OpenVPN on CentOS 7\" class=\"read-more button\" href=\"https:\/\/www.rosehosting.com\/blog\/how-to-install-openvpn-on-centos-7\/#more-24181\" aria-label=\"Read more about How to Install OpenVPN on CentOS 7\">Read More<\/a><\/p>\n","protected":false},"author":4,"featured_media":24275,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1699,1701],"tags":[541,404],"class_list":["post-24181","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-centos","category-networking-and-domains","tag-centos-7","tag-openvpn","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-33"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.4 (Yoast SEO v27.5) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>How to Install OpenVPN on CentOS 7<\/title>\n<meta name=\"description\" content=\"How to Install OpenVPN on CentOS 7 in few steps. Installing OpenVPN on CentOS 7 is an easy task, just follow the steps below on how to install VPN on CentOS 7.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.rosehosting.com\/blog\/how-to-install-openvpn-on-centos-7\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How to Install OpenVPN on CentOS 7\" \/>\n<meta property=\"og:description\" content=\"How to Install OpenVPN on CentOS 7 | RoseHosting\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.rosehosting.com\/blog\/how-to-install-openvpn-on-centos-7\/\" \/>\n<meta property=\"og:site_name\" content=\"RoseHosting\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/RoseHosting\" \/>\n<meta property=\"article:author\" content=\"https:\/\/www.facebook.com\/rosehosting.helpdesk\" \/>\n<meta property=\"article:published_time\" content=\"2017-11-14T13:00:49+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2022-12-12T13:00:49+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.rosehosting.com\/blog\/wp-content\/uploads\/2017\/11\/How-to-install-openVPN-on-CentOS-7.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"600\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Jeff Wilson\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@rosehosting\" \/>\n<meta name=\"twitter:site\" content=\"@rosehosting\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Jeff Wilson\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.rosehosting.com\\\/blog\\\/how-to-install-openvpn-on-centos-7\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.rosehosting.com\\\/blog\\\/how-to-install-openvpn-on-centos-7\\\/\"},\"author\":{\"name\":\"Jeff Wilson\",\"@id\":\"https:\\\/\\\/www.rosehosting.com\\\/blog\\\/#\\\/schema\\\/person\\\/7ce77a842fa6a9a7f8efa186f2353713\"},\"headline\":\"How to Install OpenVPN on CentOS 7\",\"datePublished\":\"2017-11-14T13:00:49+00:00\",\"dateModified\":\"2022-12-12T13:00:49+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.rosehosting.com\\\/blog\\\/how-to-install-openvpn-on-centos-7\\\/\"},\"wordCount\":434,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/www.rosehosting.com\\\/blog\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.rosehosting.com\\\/blog\\\/how-to-install-openvpn-on-centos-7\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.rosehosting.com\\\/blog\\\/wp-content\\\/uploads\\\/2017\\\/11\\\/How-to-install-openVPN-on-CentOS-7.jpg\",\"keywords\":[\"centos 7\",\"openvpn\"],\"articleSection\":[\"CentOS\",\"Networking and Domains\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.rosehosting.com\\\/blog\\\/how-to-install-openvpn-on-centos-7\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.rosehosting.com\\\/blog\\\/how-to-install-openvpn-on-centos-7\\\/\",\"url\":\"https:\\\/\\\/www.rosehosting.com\\\/blog\\\/how-to-install-openvpn-on-centos-7\\\/\",\"name\":\"How to Install OpenVPN on CentOS 7\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.rosehosting.com\\\/blog\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.rosehosting.com\\\/blog\\\/how-to-install-openvpn-on-centos-7\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.rosehosting.com\\\/blog\\\/how-to-install-openvpn-on-centos-7\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.rosehosting.com\\\/blog\\\/wp-content\\\/uploads\\\/2017\\\/11\\\/How-to-install-openVPN-on-CentOS-7.jpg\",\"datePublished\":\"2017-11-14T13:00:49+00:00\",\"dateModified\":\"2022-12-12T13:00:49+00:00\",\"description\":\"How to Install OpenVPN on CentOS 7 in few steps. 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