CNAME records coexistence with other RR's

Barry Margolin barmar at
Tue Nov 30 15:20:54 UTC 1999

In article <38438CC7.C6D1FED0 at>,
Edmund  <c990077 at> wrote:
>Well, might be multiple-cnames in

The multiple-cnames option has nothing to do with this.  He doesn't want
multiple CNAME records, he wants a CNAME with other data.  This is
expressly forbidden by the DNS specification, and BIND no longer allows it.

>Yusuf G wrote:
>> Hi, I have a situation where I want to create a CNAME record
>> pointed to machine1.some.other.domain
>> Also, I want a MX record to pointing to machine1.some.other.domain
>> Basically, I want to setup a test web-based email system. According to
>> RFC 2181 and RFC 1912 A CNAME record is not allowed to coexist with any other
>> +data. Does any body have any suggestion as to a workaround for this. I don't
>> +want to add a A record for to allow for flexibiltiy in moving its
>> +target machine

Sorry, that's the way it is.  If a name has a CNAME record, it means that
it's simply a synonym for the target name.  What you're asking for would be
like creating a symbolic link on Unix and then trying to have different
data in the link versus the target file.

Barry Margolin, barmar at
GTE Internetworking, Powered by BBN, Burlington, MA
Please DON'T copy followups to me -- I'll assume it wasn't posted to the group.

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