{"id":1240,"date":"2021-09-21T09:38:49","date_gmt":"2021-09-21T14:38:49","guid":{"rendered":"http:\/\/zewwy.ca\/?p=1240"},"modified":"2021-09-21T16:24:50","modified_gmt":"2021-09-21T21:24:50","slug":"fixing-400-an-error-occurred-while-sending-an-authentication-request-to-the-vcenter-single-sign-on-server","status":"publish","type":"post","link":"https:\/\/zewwy.ca\/index.php\/2021\/09\/21\/fixing-400-an-error-occurred-while-sending-an-authentication-request-to-the-vcenter-single-sign-on-server\/","title":{"rendered":"Fixing [400] An\u00a0error occurred while sending an authentication request to the vCenter Single Sign-On server"},"content":{"rendered":"<p>So After the last two blog posts about fixing vCenter7&#8217;s access issues due to it&#8217;s due certificate monument work flows. I was greeted with this error when trying to sign into the web UI on vCenter.<\/p>\n<pre>[400] An\u00a0error occurred while sending an authentication request to the vCenter Single Sign-On server- An error occurred when processing meta data during\u00a0vCenter Single Sign-On setup:the service provider validation failed. Verify that the server URL is correct and is in FQDN format, or that the hostname is a trusted service provider alias.<\/pre>\n<p>After a a quick google search I found <a href=\"https:\/\/kb.vmware.com\/s\/article\/71387\">yet another VMware KB<\/a> discussing it.<\/p>\n<div class=\"header section_header slds-p-top_large slds-p-bottom_xx-small\"><span id=\"chevronContainer\">\u00a0<\/span>Resolution<\/div>\n<div class=\"content\">This is an expected behavior.<br \/>\nVMware vSphere 7.0 enforce FQDN or IP address reverse resolvable to FQDN to allow authentication for Single-Sign on.<\/div>\n<div><\/div>\n<div>Greeeeeeeeeeeeeeaaaaaaaaat! Thanks VMware, just another example of security destroying functionality.<\/div>\n<div><\/div>\n<div>What did I do? Exactly what it stated, I navigated to the WebUI URL using the hostnames Fully Qualified Domain Name E.G: Hostname.domain.end<\/div>\n<div><\/div>\n<div>Cause I was attempting to access it just by just the hostname as domain info was being auto resolved by the domain suffix during queries.<\/div>\n","protected":false},"excerpt":{"rendered":"<p>So After the last two blog posts about fixing vCenter7&#8217;s access issues due to it&#8217;s due certificate monument work flows. I was greeted with this error when trying to sign into the web UI on vCenter. [400] An\u00a0error occurred while sending an authentication request to the vCenter Single Sign-On server- An error occurred when processing &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/zewwy.ca\/index.php\/2021\/09\/21\/fixing-400-an-error-occurred-while-sending-an-authentication-request-to-the-vcenter-single-sign-on-server\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Fixing [400] An\u00a0error occurred while sending an authentication request to the vCenter Single Sign-On server&#8221;<\/span><\/a><\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"sfsi_plus_gutenberg_text_before_share":"","sfsi_plus_gutenberg_show_text_before_share":"","sfsi_plus_gutenberg_icon_type":"","sfsi_plus_gutenberg_icon_alignemt":"","sfsi_plus_gutenburg_max_per_row":"","footnotes":""},"categories":[5,8],"tags":[376,105,377],"class_list":["post-1240","post","type-post","status-publish","format-standard","hentry","category-hypervisors","category-server-administration","tag-376","tag-error","tag-sso-setup-failed"],"_links":{"self":[{"href":"https:\/\/zewwy.ca\/index.php\/wp-json\/wp\/v2\/posts\/1240","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/zewwy.ca\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/zewwy.ca\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/zewwy.ca\/index.php\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/zewwy.ca\/index.php\/wp-json\/wp\/v2\/comments?post=1240"}],"version-history":[{"count":2,"href":"https:\/\/zewwy.ca\/index.php\/wp-json\/wp\/v2\/posts\/1240\/revisions"}],"predecessor-version":[{"id":1244,"href":"https:\/\/zewwy.ca\/index.php\/wp-json\/wp\/v2\/posts\/1240\/revisions\/1244"}],"wp:attachment":[{"href":"https:\/\/zewwy.ca\/index.php\/wp-json\/wp\/v2\/media?parent=1240"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/zewwy.ca\/index.php\/wp-json\/wp\/v2\/categories?post=1240"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/zewwy.ca\/index.php\/wp-json\/wp\/v2\/tags?post=1240"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}