{"id":1573,"date":"2022-07-22T13:05:23","date_gmt":"2022-07-22T13:05:23","guid":{"rendered":"https:\/\/pheonixsolutions.com\/knowledge-base\/?p=1573"},"modified":"2026-06-05T05:00:41","modified_gmt":"2026-06-05T05:00:41","slug":"how-to-install-cpanel-dns-only","status":"publish","type":"post","link":"https:\/\/pheonixsolutions.com\/knowledge-base\/2022\/07\/22\/how-to-install-cpanel-dns-only\/","title":{"rendered":"How to Install cPanel DNSOnly"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">Introduction<\/h2>\n\n\n\n<p>cPanel DNSOnly is a lightweight version of cPanel designed specifically for DNS clustering and DNS management. Unlike a full cPanel &amp; WHM installation, DNSOnly does not provide web hosting, email, database, or account management features. Instead, it allows administrators to create dedicated DNS servers that synchronize DNS zones with one or more cPanel servers.<\/p>\n\n\n\n<p>Deploying cPanel DNSOnly on separate servers improves DNS redundancy, availability, and performance by distributing DNS records across multiple geographically diverse locations. This setup ensures continued DNS resolution even if the primary hosting server becomes unavailable.<\/p>\n\n\n\n<p>This article explains how to install cPanel DNSOnly, access its management interface, and restart the DNSOnly service when required.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Prerequisites<\/h2>\n\n\n\n<p>Before proceeding, ensure the following requirements are met:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Server Requirements<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-black-color has-text-color has-link-color wp-elements-da658f8cd9214e716acfe6e92e4680c7\">A fresh installation of a supported operating system (AlmaLinux, Rocky Linux, CloudLinux, or supported CentOS versions).<\/li>\n\n\n\n<li class=\"has-black-color has-text-color has-link-color wp-elements-b06ea754f0ce282d8e26425eb627e757\">Minimum 1 GB RAM (2 GB or higher recommended).<\/li>\n\n\n\n<li class=\"has-black-color has-text-color has-link-color wp-elements-eaa44fd00b98ac036367abe6dea680b0\">At least 20 GB of available disk space.<\/li>\n\n\n\n<li class=\"has-black-color has-text-color has-link-color wp-elements-bdc114baa3b3fa1f880dc96784a155dc\">A fully qualified domain name (FQDN) configured for the server.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Access Requirements<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-black-color has-text-color has-link-color wp-elements-ac396ec66fd2268d0627f1fe3983eaec\">Root or sudo privileged access to the server.<\/li>\n\n\n\n<li class=\"has-black-color has-text-color has-link-color wp-elements-57ad7afa67b6924c4989cf4e3cd50e80\">SSH access to the server.<\/li>\n\n\n\n<li class=\"has-black-color has-text-color has-link-color wp-elements-b959945b7ed71e870d5d9a007f2377c9\">Administrative access to the network firewall.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Network Requirements<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-black-color has-text-color has-link-color wp-elements-6a93b8a32a64e8e41393e5d30523f7a1\">A static public IP address.<\/li>\n\n\n\n<li class=\"has-black-color has-text-color has-link-color wp-elements-af7a82445bd34874be873c2a14d0e100\">Internet connectivity to download installation packages.<\/li>\n\n\n\n<li class=\"has-black-color has-text-color has-link-color wp-elements-c6103fdb230cec20239f6c9cbf9eb8f4\">Required ports opened in the firewall, including:\n<ul class=\"wp-block-list\">\n<li>TCP 53 (DNS)<\/li>\n\n\n\n<li>UDP 53 (DNS)<\/li>\n\n\n\n<li>TCP 2087 (WHM\/DNSOnly Interface)<\/li>\n\n\n\n<li>TCP 2089 (Secure DNS Cluster Communication)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Recommended Preparations<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-black-color has-text-color has-link-color wp-elements-42f94e00f23abcce3d5469411e395be7\">Update the operating system before installation.<\/li>\n\n\n\n<li class=\"has-black-color has-text-color has-link-color wp-elements-ff336ec09b9c5d508d3a30182f4ba219\">Set a valid hostname:<code>hostnamectl set-hostname dns1.example.com<\/code><\/li>\n\n\n\n<li class=\"has-black-color has-text-color has-link-color wp-elements-aae03156d87be3f7b969d87b00d44e45\">Disable unsupported package repositories that may interfere with installation.<\/li>\n\n\n\n<li class=\"has-black-color has-text-color has-link-color wp-elements-fe5df7ab6391317340a809f05eab706f\">Verify that no conflicting DNS services are already running on the server.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Conclusion<\/h2>\n\n\n\n<p>By installing cPanel DNSOnly, administrators can create dedicated DNS servers that participate in a DNS cluster and provide highly available DNS services for hosted domains. DNSOnly servers help improve redundancy, reduce dependency on a single hosting server, and ensure reliable DNS resolution across multiple locations.<\/p>\n\n\n\n<p>After installation, it is recommended to configure DNS clustering, verify zone synchronization, test DNS resolution, and monitor the DNSOnly server regularly to ensure optimal performance and availability. Proper DNS cluster configuration and periodic validation of synchronized zones will help maintain a stable and resilient DNS infrastructure.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Introduction cPanel DNSOnly is a lightweight version of cPanel designed specifically for DNS clustering and DNS management. Unlike a full cPanel &amp; WHM installation, DNSOnly does not provide web hosting, email, database, or account management features. Instead, it allows administrators to create dedicated DNS servers that synchronize DNS zones with one or more cPanel servers. ..<\/p>\n<div class=\"clear-fix\"><\/div>\n<p><a href=\"https:\/\/pheonixsolutions.com\/knowledge-base\/2022\/07\/22\/how-to-install-cpanel-dns-only\/\" title=\"read more...\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[33],"tags":[5,36],"class_list":["post-1573","post","type-post","status-publish","format-standard","hentry","category-whm","tag-cpanel","tag-dns"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How to Install cPanel DNSOnly - PheonixSolutions Knowledge-Base<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/pheonixsolutions.com\/knowledge-base\/2022\/07\/22\/how-to-install-cpanel-dns-only\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How to Install cPanel DNSOnly - PheonixSolutions Knowledge-Base\" \/>\n<meta property=\"og:description\" content=\"Introduction cPanel DNSOnly is a lightweight version of cPanel designed specifically for DNS clustering and DNS management. 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