Multiple PTRs for an in-addr

[Alan Shackelford]

Well said, Paul. I make my users choose between the various names for a server, and generally publish the name that the machine actually knows itself as, rather than any of the application names that reside there. In my opinion, the RFC is fairly clear. And my users don't know you have added this capability to BIND. So I agree this should never become the expected behavior, even if it begins to appear in great DNS software around the world.

73 Paul  de NG3B   Alan



Alan V. Shackelford                   Sr. Systems Software Engineer
The Johns Hopkins University and Johns Hopkins Medical Institutions
Baltimore, Maryland USA       410-735-4773        ashackel at jhmi.edu


-----Original Message-----
From: bind-users-bounces+ashackel=jhmi.edu at lists.isc.org [mailto:bind-users-bounces+ashackel=jhmi.edu at lists.isc.org] On Behalf Of Paul Vixie
Sent: Wednesday, June 02, 2010 11:41 AM
To: bind-users at isc.org
Subject: 

Chris Thompson <cet1 at cam.ac.uk> writes:

> Nothing that I can see. Maybe dnsviz can't cope with multiple PTR
> records in an RRset, as your first case has? (On the other hand it
> handles multiple A records in forward zones OK.)

to be fair, multiple PTR RRs is something we added in BIND gethostbyaddr()
in more or less direct contravention to RFC 1034. if dnsviz doesn't handle
it (and i don't know if it doesn't) then it's not dnsviz's fault at all
since the DNS RFC's say that there will only be one PTR RR at an in-addr.
-- 
Paul Vixie
KI6YSY
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