{"id":1773,"date":"2023-01-24T08:32:39","date_gmt":"2023-01-24T03:02:39","guid":{"rendered":"https:\/\/trysiteprice.com\/blog\/?p=1773"},"modified":"2023-01-24T08:32:39","modified_gmt":"2023-01-24T03:02:39","slug":"how-to-set-change-fqdn-on-ubuntu-20-04-linux-2","status":"publish","type":"post","link":"https:\/\/trysiteprice.com\/blog\/how-to-set-change-fqdn-on-ubuntu-20-04-linux-2\/","title":{"rendered":"How to set\/change FQDN on Ubuntu 20.04 Linux"},"content":{"rendered":"<p>In Ubuntu 20.04, you can set or change the Fully Qualified Domain Name (FQDN) by following these steps:<\/p>\n<ol>\n<li>First, open the <code>\/etc\/hosts<\/code> file by running the following command:<\/li>\n<\/ol>\n<div class=\"bg-black mb-4 rounded-md\">\n<div class=\"flex items-center relative text-gray-200 bg-gray-800 px-4 py-2 text-xs font-sans\"><\/div>\n<div class=\"p-4 overflow-y-auto\"><code class=\"!whitespace-pre-wrap hljs language-bash\">sudo nano \/etc\/hosts<br \/>\n<\/code><\/div>\n<\/div>\n<ol start=\"2\">\n<li>Locate the line that starts with <code>127.0.0.1<\/code> and change the hostname to your desired FQDN, for example:<\/li>\n<\/ol>\n<div class=\"bg-black mb-4 rounded-md\">\n<div class=\"flex items-center relative text-gray-200 bg-gray-800 px-4 py-2 text-xs font-sans\"><\/div>\n<div class=\"p-4 overflow-y-auto\"><code class=\"!whitespace-pre-wrap hljs\">127.0.0.1       localhost.localdomain mynewfqdn<br \/>\n<\/code><\/div>\n<\/div>\n<ol start=\"3\">\n<li>Next, you will need to change the hostname in the <code>\/etc\/hostname<\/code> file by running the following command:<\/li>\n<\/ol>\n<div class=\"bg-black mb-4 rounded-md\">\n<div class=\"flex items-center relative text-gray-200 bg-gray-800 px-4 py-2 text-xs font-sans\"><\/div>\n<div class=\"p-4 overflow-y-auto\"><code class=\"!whitespace-pre-wrap hljs language-bash\">sudo nano \/etc\/hostname<br \/>\n<\/code><\/div>\n<\/div>\n<p>In the file, change the hostname to your new desired FQDN<\/p>\n<ol start=\"4\">\n<li>Now, you need to tell the running system to update the hostname by running the following command:<\/li>\n<\/ol>\n<div class=\"bg-black mb-4 rounded-md\">\n<div class=\"flex items-center relative text-gray-200 bg-gray-800 px-4 py-2 text-xs font-sans\"><\/div>\n<div class=\"p-4 overflow-y-auto\"><code class=\"!whitespace-pre-wrap hljs language-python\">sudo hostnamectl <span class=\"hljs-built_in\">set<\/span>-hostname mynewfqdn<br \/>\n<\/code><\/div>\n<\/div>\n<ol start=\"5\">\n<li>Finally, you will need to reboot your machine for the changes to take effect.<\/li>\n<li>You can also use the <code>hostnamectl<\/code> command to check the current hostname, for example <code>hostnamectl status<\/code>.<\/li>\n<\/ol>\n<p>It&#8217;s important to keep in mind that the changes will only take effect after reboot the machine. Also, note that some applications may have hardcoded the old hostname, and will not work until they are updated or reconfigured.<\/p>\n<p>It&#8217;s also important to make sure that the FQDN is properly set up in your DNS server, so that other machines are able to resolve it.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In Ubuntu 20.04, you can set or change the Fully Qualified Domain Name (FQDN) by following these steps: First, open the \/etc\/hosts file by running the following command: sudo nano \/etc\/hosts Locate the line that starts with 127.0.0.1 and change the hostname to your desired FQDN, for example: 127.0.0.1 localhost.localdomain mynewfqdn Next, you will need &#8230; <a title=\"How to set\/change FQDN on Ubuntu 20.04 Linux\" class=\"read-more\" href=\"https:\/\/trysiteprice.com\/blog\/how-to-set-change-fqdn-on-ubuntu-20-04-linux-2\/\" aria-label=\"Read more about How to set\/change FQDN on Ubuntu 20.04 Linux\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1773","post","type-post","status-publish","format-standard","hentry","category-best-tutorial"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How to set\/change FQDN on Ubuntu 20.04 Linux - TrySitePrice<\/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:\/\/trysiteprice.com\/blog\/how-to-set-change-fqdn-on-ubuntu-20-04-linux-2\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How to set\/change FQDN on Ubuntu 20.04 Linux - TrySitePrice\" \/>\n<meta property=\"og:description\" content=\"In Ubuntu 20.04, you can set or change the Fully Qualified Domain Name (FQDN) by following these steps: First, open the \/etc\/hosts file by running the following command: sudo nano \/etc\/hosts Locate the line that starts with 127.0.0.1 and change the hostname to your desired FQDN, for example: 127.0.0.1 localhost.localdomain mynewfqdn Next, you will need ... Read more\" \/>\n<meta property=\"og:url\" content=\"https:\/\/trysiteprice.com\/blog\/how-to-set-change-fqdn-on-ubuntu-20-04-linux-2\/\" \/>\n<meta property=\"og:site_name\" content=\"TrySitePrice\" \/>\n<meta property=\"article:published_time\" content=\"2023-01-24T03:02:39+00:00\" \/>\n<meta name=\"author\" content=\"Rahul Sahu\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/trysiteprice.com\/blog\/how-to-set-change-fqdn-on-ubuntu-20-04-linux-2\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/trysiteprice.com\/blog\/how-to-set-change-fqdn-on-ubuntu-20-04-linux-2\/\"},\"author\":{\"name\":\"Rahul Sahu\",\"@id\":\"https:\/\/trysiteprice.com\/blog\/#\/schema\/person\/358e04eeea4281deacad2f30c58e67f4\"},\"headline\":\"How to set\/change FQDN on Ubuntu 20.04 Linux\",\"datePublished\":\"2023-01-24T03:02:39+00:00\",\"dateModified\":\"2023-01-24T03:02:39+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/trysiteprice.com\/blog\/how-to-set-change-fqdn-on-ubuntu-20-04-linux-2\/\"},\"wordCount\":185,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/trysiteprice.com\/blog\/#organization\"},\"articleSection\":[\"Best\/Tutorial\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/trysiteprice.com\/blog\/how-to-set-change-fqdn-on-ubuntu-20-04-linux-2\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/trysiteprice.com\/blog\/how-to-set-change-fqdn-on-ubuntu-20-04-linux-2\/\",\"url\":\"https:\/\/trysiteprice.com\/blog\/how-to-set-change-fqdn-on-ubuntu-20-04-linux-2\/\",\"name\":\"How to set\/change FQDN on Ubuntu 20.04 Linux - 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