When your server fails to resolve domain names, services relying on the internet may stop working. This is often due to incorrect nameserver settings or missing dependencies. Here\u2019s how to diagnose and fix the issue.<\/p>\n
A missing or misconfigured If this command times out, your server lacks valid nameservers. To fix it, edit Add the following lines:<\/p>\n Save the file and restart the networking service:<\/p>\n If your cPanel server is missing required Perl modules, scripts may fail. Run these commands to install missing modules:<\/p>\n If you’re running a mix of cPanel versions, stability issues may occur. To keep using cPanel 10.x, lock it in the stable release channel:<\/p>\n If you’re still experiencing DNS resolution failures, reach out to UnderHost Support<\/a> for professional troubleshooting. Our hosting solutions, including dedicated servers<\/a> and cloud VPS<\/a>, come with expert-managed services to ensure reliability.<\/p>\n","protected":false},"excerpt":{"rendered":" DNS resolution failures can cause serious connectivity issues on your server. If your system can\u2019t resolve domain names, it could be due to a misconfigured \/etc\/resolv.conf or missing Perl modules. This guide walks you through troubleshooting steps to restore DNS functionality efficiently.<\/p>\n","protected":false},"author":1,"featured_media":4853,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3517","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"_links":{"self":[{"href":"https:\/\/underhost.com\/blog\/wp-json\/wp\/v2\/posts\/3517","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/underhost.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/underhost.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/underhost.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/underhost.com\/blog\/wp-json\/wp\/v2\/comments?post=3517"}],"version-history":[{"count":2,"href":"https:\/\/underhost.com\/blog\/wp-json\/wp\/v2\/posts\/3517\/revisions"}],"predecessor-version":[{"id":5141,"href":"https:\/\/underhost.com\/blog\/wp-json\/wp\/v2\/posts\/3517\/revisions\/5141"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/underhost.com\/blog\/wp-json\/wp\/v2\/media\/4853"}],"wp:attachment":[{"href":"https:\/\/underhost.com\/blog\/wp-json\/wp\/v2\/media?parent=3517"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/underhost.com\/blog\/wp-json\/wp\/v2\/categories?post=3517"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/underhost.com\/blog\/wp-json\/wp\/v2\/tags?post=3517"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}\/etc\/resolv.conf<\/code> file can prevent DNS lookups. To verify, run the following command:<\/p>\ndig . NS<\/code><\/pre>\n\/etc\/resolv.conf<\/code> and add proper nameservers. For example:<\/p>\n\r\nnano \/etc\/resolv.conf\r\n<\/code><\/pre>\n\r\nnameserver 8.8.8.8\r\nnameserver 8.8.4.4\r\n<\/code><\/pre>\nsystemctl restart networking<\/code><\/pre>\n2. Ensure Your Server Has the Necessary Perl Modules<\/h3>\n
\r\n\/scripts\/perlinstaller File::Copy::Recursive\r\n\/usr\/local\/cpanel\/bin\/checkperlmodules --bootstrap\r\n\/usr\/local\/cpanel\/bin\/checkperlmodules --full\r\n<\/code><\/pre>\n3. Fix Version Conflicts Between cPanel 10.x and 11.x<\/h3>\n
\r\necho \"CPANEL=stable\" >> \/etc\/cpupdate.conf\r\n\/scripts\/upcp --force\r\n<\/code><\/pre>\nNeed Expert Assistance? @CustomerPanel Can Help<\/h3>\n