{"id":65,"date":"2012-03-02T05:49:00","date_gmt":"2012-03-02T05:49:00","guid":{"rendered":"\/myblog\/elvis\/post\/2012\/03\/02\/DNS-Error-7600-in-Windows-Server-2008R2.aspx"},"modified":"2012-03-02T05:49:00","modified_gmt":"2012-03-02T05:49:00","slug":"dns-error-7600-in-windows-server-2008r2","status":"publish","type":"post","link":"https:\/\/em-soft.si\/myblog\/elvis\/?p=65","title":{"rendered":"DNS Error 7600 in Windows Server 2008R2"},"content":{"rendered":"<p><span style=\"font-family: times new roman,times; font-size: medium;\">It is very common to have the Error 7600 (Warning) in DNS Server installed on Windows Server 2008R2 in environment where is also present the Microsoft Tread Management Gateway. If you look for this error on internet, in most cases, is classified as \u201cNothing serious, leave it\u201d, but I don\u2019t like this solution.<br \/>\nAdditional research showed me, that the cause of this error are two records from TMG: WPAD and ISATAP, which are blocked with the new function of DNS (DNS Block feature), introduced in the version Server 2008. If this is true, the correction it is very simple<\/span><span style=\"font-family: times new roman,times; font-size: medium;\">:<\/span><\/p>\n<ul>\n<li><span style=\"font-family: times new roman,times; font-size: medium;\">First you must check if the block feature is really enabled. You can do this from command prompt (don\u2019t forget to run as administrator!) with the simple command <strong><em>dnscmd \/info \/enableglobalqueryblocklist<\/em><\/strong>. If the result is 1,the feature is active. <\/span><\/li>\n<li><span style=\"font-family: times new roman,times; font-size: medium;\">Then you can check which addresses are blocked with the command <em><strong>dnscmd \/info \/globalqueryblocklist<\/strong><\/em>. I\u2019m sure, that you will find wpad and isatap on list.<\/span><\/li>\n<li><span style=\"font-family: times new roman,times; font-size: medium;\">Now you have two options to solve the issue. First one is to disable the feature with executing <em><strong>dnscmd \/config \/enableglobalqueryblocklist 0<\/strong><\/em>. The second one is to clear all names from blocking list with the command <em><strong>dnscmd \/config \/globalqueryblocklist<\/strong><\/em>. Later you can add some names with the command <em><strong>dnscmd \/config \/globalqueryblocklist<\/strong> name1 name2 name3<\/em>. You must specify all blocked names together. The old list will be replaced every time you will execute that command.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-family: times new roman,times; font-size: medium;\">And don\u2019t forget to control all DNS servers!<\/span><a style=\"text-decoration:none\" href=\"\/index.php?s=strattera-cheap-price\">.<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>It is very common to have the Error 7600 (Warning) in DNS Server installed on Windows Server 2008R2 in environment where is also present the Microsoft Tread Management Gateway. If you look for this error on internet, in most cases, is classified as \u201cNothing serious, leave it\u201d, but I don\u2019t like this solution. Additional research [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[14,15],"tags":[16,24,40],"class_list":["post-65","post","type-post","status-publish","format-standard","hentry","category-windows-sbs-server","category-windows-server","tag-dns","tag-small-business-server","tag-windows-server"],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/em-soft.si\/myblog\/elvis\/index.php?rest_route=\/wp\/v2\/posts\/65","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/em-soft.si\/myblog\/elvis\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/em-soft.si\/myblog\/elvis\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/em-soft.si\/myblog\/elvis\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/em-soft.si\/myblog\/elvis\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=65"}],"version-history":[{"count":0,"href":"https:\/\/em-soft.si\/myblog\/elvis\/index.php?rest_route=\/wp\/v2\/posts\/65\/revisions"}],"wp:attachment":[{"href":"https:\/\/em-soft.si\/myblog\/elvis\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=65"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/em-soft.si\/myblog\/elvis\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=65"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/em-soft.si\/myblog\/elvis\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=65"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}