On Apr 20, 2011, at 2:19 AM, Adam Goodall wrote: > However if a client queries server A for mail.testdomain.com (type any) the > request is not answered. From the logs on server B i can see that server A is > only forwarding on a request of type A. As an A record for > mail.testdomain.com does not exist on server B it does not resolve. > > If i then specifically query Server A for mail.testdomain.com of type CNAME, > it resolves as expected. Subsequent requests against server A for > mail.testdomain.com of type any then resolve, presumably because it is > already in the cache. > > Hopefully that makes sense! Has anyone had a similar issue and did you come > up with a work around? Is this expected behaviour or a bug?
This is an excellent example of why you should not forward to an auth-only server. Use a stub zone instead. You might need to give it an empty forwarders list, to override forwarding set in either the options or view statements. For example: zone "testdomain.com" { type stub; masters { 192.168.1.1; }; forwarders { }; }; Try it, you'll like it. Chris Buxton BlueCat Networks
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