IT Answers » OpenDNS http://itknowledgeexchange.techtarget.com/itanswers Sat, 18 May 2013 00:58:41 +0000 en-US hourly 1 Why is this computer using secondary dns server instead of primary? http://itknowledgeexchange.techtarget.com/itanswers/why-is-this-computer-using-secondary-dns-server-instead-of-primary/ http://itknowledgeexchange.techtarget.com/itanswers/why-is-this-computer-using-secondary-dns-server-instead-of-primary/#comments Thu, 31 Mar 2011 22:13:31 +0000 Ingram87 I have a company that is using OpenDNS to filter ceartain web sites. The way I beleive it works is you set the workstations to use a OpenDNS servers. If you no longer wish for them to use OpenDNS filtering, then you use a different DNS server, such as 4.2.2.1.

Our domain controller has forwarders setup with only OpenDNS servers. So if I set a computer’s primary dns server to 4.2.2.1 with no secondary server, then OpenDNS does not effect this computer. If i set the primary dns server to 4.2.2.1, and the secondary dns server to 192.168.1.200 (our DC, this way all internet traffic will use the primary dns server, and local stuff will fall back to the secondary dns server), then OpenDNS blocks stuff. This means that it’s not using the primary dns server. Does anybody know why this is?
]]> http://itknowledgeexchange.techtarget.com/itanswers/why-is-this-computer-using-secondary-dns-server-instead-of-primary/feed/ 4