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WPAD CNAME

Posted on 2013-06-24
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Last Modified: 2013-06-25
Hi - We have a WPAD CNAME that will only resolve on our original DC's around the globe.  ANy new DC's full or RODC, the CNAME for WPAD will not resolve.  Very strange issue.  Please help.

Server 2008 R2 across the board - combination of VPN site to site links and MPLS.
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Question by:stowyo
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Expert Comment

by:Will Szymkowski
ID: 39273385
The DC's you are deploying have DNS? I would assume yes, if this is true, can you open the DNS console on one of the new DC's and see if that CNAME record exists? Also, have you checked your firewall settings on these machines to ensure they are correct?

Also, instead of pointing the DC to itself for DNS, if you point it to one of the old DC's do and ipconfig /flushdns and try pinging the cname again does it work?
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irweazelwallis earned 2000 total points
ID: 39274234
have you made sure that WPAD is allowed on via the blocklist and that setting is on all the DC's

http://technet.microsoft.com/en-us/library/cc995158.aspx
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Author Closing Comment

by:stowyo
ID: 39274619
Good answer.  The command is:

run
dnscmd /config /enableglobalqueryblocklist  0
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