correct way to do CNAME's on server with no recursion

[David Nedved]

Hi All,

I am in the process of splitting our DNS servers from 2 servers to do 
everything, to a cluster of 2 to do recursion for access users, and a
cluster of 2 to provide nonrecursive DNS for zones we host.

Currently have an issue where on the server with recursion turned off,
if the customer wants to have a CNAME pointing to outside of their
zone, it doesn't work.

For example:

www	1h	IN	CNAME	www.foo.com.

With this config, apparently people who are not our customers are
not able to resolve the CNAME all the way back to an IP address.

Right now we've turned recursion back on, and this has fixed it
temporarily, but what is the correct way to do this?

Do I need to put in glue NS records for the foo.com zone?
Are glue records for other zones even valid within a zone file?

Thanks in advance for any help.

David
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Unix Systems Engineer              VOICE: +1 864 331 8181
NuVox Communications, Inc.         FAX:   +1 864 331 1466
301 North Main Street, Ste 5000    EMAIL: dnedved at nuvox.net
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