9.3.1 problem/question

[Barry Margolin]

In article <d42494$2nu1$1 at sf1.isc.org>, Pavel Urban <urbanp at mlp.cz> 
wrote:

> Barry Margolin wrote:
> > In article <d40sqi$2ush$1 at sf1.isc.org>, Pavel Urban <urbanp at mlp.cz> 
> > wrote:
> > 
> > 
> >>Hello,
> >>
> >>our newly installed Bind 9.3.1 is having a problem resolving 
> >>'www.silis.cz'. It resolves to CNAME pointing to 'silis.cz' - strange, 
> >>but I dont's see anything wrong with it. But Bind fails to resolve 
> >>'silis.cz' - while other DNS servers seem to have no problem with it. 
> >>Can anybody tell me a reason/give me a hint what to do? Thanks!
> > 
> > 
> > The delegation records for silis.cz all point to aliases.  This can 
> > cause problems.
> > 
> 
> Is it prohibited/discouraged somewhere in RFCs? I'm not an administrator 
> for this domain, I just want to explain to our customers why they are 
> having problem resolving this domain using our nameservers...

Yes, RFC 1034 says: "Domain names in RRs which point at another name 
should always point at the primary name and not the alias."

-- 
Barry Margolin, barmar at alum.mit.edu
Arlington, MA
*** PLEASE post questions in newsgroups, not directly to me ***