IN SOA format

Barry Margolin barmar at alum.mit.edu
Fri Sep 19 01:28:01 UTC 2008


In article <gau0bf$3u7$1 at sf1.isc.org>,
 Mark Andrews <Mark_Andrews at isc.org> wrote:

> In message <DAE2574A7F44F44ABE07381C36213DFA0592002B at exch.cdltd.co.uk>, "Paul 
> Cocker" writes:
> > If a computer has multiple names, say a regular hostname and a CNAME
> > "ns" which points at the hostname and is used as the first nameserver
> > for a domain, should the hostname or "ns" be used on the IN SOA line?
> 
> 	NS records cannot refer to CNAMES.  NS record have to refer
> 	directly to A or AAAA records.

But his question was about SOA records, not NS records.

In most cases the hostname in the SOA record is not used, so it's not 
important what it is.  The only common use of it is if dynamic DNS 
updates are in use, it tells the clients where to send their updates.  I 
expect that they will follow CNAMEs.

-- 
Barry Margolin, barmar at alum.mit.edu
Arlington, MA
*** PLEASE don't copy me on replies, I'll read them in the group ***


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