{"id":317671,"date":"2025-11-25T09:01:38","date_gmt":"2025-11-25T09:01:38","guid":{"rendered":"https:\/\/peraltafinancing.com\/business\/internet-business\/websites-hosted-in-plesk-on-ubuntu-inaccessible-after-apache-update\/"},"modified":"2025-11-25T09:01:38","modified_gmt":"2025-11-25T09:01:38","slug":"websites-hosted-in-plesk-on-ubuntu-inaccessible-after-apache-update","status":"publish","type":"post","link":"https:\/\/fivemor.com\/?p=317671","title":{"rendered":"Websites Hosted in Plesk on Ubuntu Inaccessible After Apache Update"},"content":{"rendered":"<p> <br \/>\n<\/p>\n<div id=\"post-9398\">\n<header>\n<!--\n\n<div class=\"blogmeta\">\n    <span itemprop=\"publisher\" itemscope itemtype=\"http:\/\/schema.org\/Organization\">\n                <meta itemprop=\"name\" content=\"Easyspace\" \/>\n        \n\n<div itemprop=\"logo\" itemscope itemtype=\"https:\/\/schema.org\/ImageObject\">\n      <meta itemprop=\"url\" content=\"https:\/\/pbs.twimg.com\/profile_images\/900648899236552704\/hmN3a9jY_400x400.jpg\">\n      <meta itemprop=\"width\" content=\"40\">\n      <meta itemprop=\"height\" content=\"40\">\n    <\/div>\n\n\n\n    <\/span>\n    <img alt=\"\" src=\"https:\/\/secure.gravatar.com\/avatar\/bd584b2a228076f65a5a33a8faf145cf?s=128&r=pg\" srcset=\"https:\/\/secure.gravatar.com\/avatar\/bd584b2a228076f65a5a33a8faf145cf?s=256&r=pg 2x\" class=\"avatar avatar-128 photo\" height=\"128\" width=\"128\" loading='lazy' decoding='async'\/>    <span class=\"author vcard\" itemprop=\"uthor\" itemscope itemtype=\"http:\/\/schema.org\/Person\"><span itemprop=\"name\"><a href=\"https:\/\/www.easyspace.com\/blog\/author\/easyspace\/\" title=\"Posts by Easyspace\" rel=\"author\">Easyspace<\/a><\/span><\/span>\n    <span class=\"meta-sep\"> | <\/span>\n    <span class=\"entry-date\" itemprop=\"datePublished\">July 18, 2025<\/span>\n<\/div>\n\n--><\/header>\n<div itemprop=\"articleBody\">\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" style=\"border-radius: 5px\" src=\"https:\/\/www.easyspace.com\/blog\/wp-content\/uploads\/2025\/10\/20250718-pleskubuntu.png\" alt=\"Websites Hosted in Plesk on Ubuntu Inaccessible After Apache Update: Error 421 Misdirected Request\" class=\"wp-image-9413\"\/><\/figure>\n<h2 class=\"wp-block-heading\"><strong>Overview<\/strong><\/h2>\n<p>Following a recent update to Apache, websites hosted on Plesk with Ubuntu may become inaccessible, displaying the error:<\/p>\n<p style=\"font-size:1.8em; color:#bf080e;\"><strong>421 Misdirected Request<\/strong><\/p>\n<h2 class=\"wp-block-heading\"><strong>Symptoms<\/strong><\/h2>\n<h2 class=\"wp-block-heading\"><strong>Cause<\/strong><\/h2>\n<p>The latest Apache release includes security fixes for CVEs affecting Apache and nginx interoperability. These changes prevent Apache from processing requests from nginx that lack a server name. By default, nginx does not pass the server name via SNI (Server Name Indication) when connecting to a proxied HTTPS server.<\/p>\n<p>The Plesk team is currently preparing a custom fix for Plesk Obsidian versions 18.0.70 and 18.0.71. You can click \u201cFollow\u201d on the relevant Knowledge Base article to receive updates.<\/p>\n<h2 class=\"wp-block-heading\"><strong>Resolution<\/strong><\/h2>\n<p>To resolve the issue, update the nginx configuration to ensure the server name is passed to Apache via the TLS SNI extension.<\/p>\n<h2 class=\"wp-block-heading\"><strong>Steps:<\/strong><\/h2>\n<ol type=\"1\" start=\"1\">\n<li>Connect to your Plesk server using SSH.<\/li>\n<li>Run the following script without making any changes:\n<pre class=\"wp-block-code\"><code>echo\u00a0-e\u00a0\"proxy_ssl_server_name\u00a0on;\\nproxy_ssl_name\u00a0\\$host;\"\u00a0&gt;\u00a0<br\/>\/etc\/nginx\/conf.d\/fixssl.conf\u00a0&amp;&amp;\u00a0service\u00a0nginx\u00a0restart<\/code><\/pre>\n<\/li>\n<\/ol>\n<p>This will enable nginx to correctly forward the server name, restoring access to your hosted websites.<\/p>\n<p><!-- AddThis Advanced Settings above via filter on the_content --><!-- AddThis Advanced Settings below via filter on the_content --><!-- AddThis Advanced Settings generic via filter on the_content --><!-- AddThis Share Buttons above via filter on the_content --><!-- AddThis Share Buttons below via filter on the_content --><!-- AddThis Share Buttons generic via filter on the_content -->          <span itemprop=\"headline\"\/>\n<\/div>\n<\/p><\/div>\n\n","protected":false},"excerpt":{"rendered":"<p>Overview Following a recent update to Apache, websites hosted on Plesk with Ubuntu may become inaccessible, displaying the error: 421 Misdirected Request Symptoms Cause The latest Apache release includes security fixes for CVEs affecting Apache and nginx interoperability. These changes prevent Apache from processing requests from nginx that lack a server name. By default, nginx [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":110465,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[95],"tags":[35983,12565,146669,55992,50647,4238,13835],"dealstore":[],"offerexpiration":[],"class_list":["post-317671","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-internet-business","tag-apache","tag-hosted","tag-inaccessible","tag-plesk","tag-ubuntu","tag-update","tag-websites"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Websites Hosted in Plesk on Ubuntu Inaccessible After Apache Update - Som2ny Network<\/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:\/\/fivemor.com\/?p=317671\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Websites Hosted in Plesk on Ubuntu Inaccessible After Apache Update - Som2ny Network\" \/>\n<meta property=\"og:description\" content=\"Overview Following a recent update to Apache, websites hosted on Plesk with Ubuntu may become inaccessible, displaying the error: 421 Misdirected Request Symptoms Cause The latest Apache release includes security fixes for CVEs affecting Apache and nginx interoperability. These changes prevent Apache from processing requests from nginx that lack a server name. 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