Problems with naming resolution

[Michael Voight]

It indicates either a problem with the zones not being delegated
properly or the servers queried not reaching root successfully.
It could also indicate a problem with a secondary not getting updated.
The message "No address (A) records available for www6.internet.gov.sg."
indicates there is a record of some kind for www6, but it isn't an
address record. You could query the authoritative servers and see if
they have the same information (SOA serial, etc)

Michael Voight


John Tan wrote:
> 
> Ok. Some of the hosts that I have trouble resolving include :
> 
> www6.internet.gov.sg.
> maillist.internet.gov.sg.
> www.env.gov.sg.
> 
> Some of them can be resolved but cannot be resolved at other sites.
> (see below) At other times I can resolve it. IS this normal or a symptom of
> some problem ? Appreciate if anyone
> could help.
> 
> thanks
> 
> >www6.internet.gov.sg.
> Server:  pridns.gov.sg
> Address:  160.96.179.4
> 
> Name:    www6.internet.gov.sg
> Address:  160.96.179.42
> 
> >server pridns.cyberway.com.sg.
> Default Server:  pridns.cyberway.com.sg
> Address:  203.116.1.78
> 
> >www6.internet.gov.sg.
> Server:  pridns.cyberway.com.sg
> Address:  203.116.1.78
> 
> Non-authoritative answer:
> Name:    www6.internet.gov.sg
> Address:  160.96.179.42
> 
> >server pridns.pacific.net.sg.
> Default Server:  pridns.pacific.net.sg
> Address:  203.120.90.60
> 
> >www6.internet.gov.sg.
> Server:  pridns.pacific.net.sg
> Address:  203.120.90.60
> 
> *** No address (A) records available for www6.internet.gov.sg.
> >server dnscache1.singnet.com.sg.
> Default Server:  dnscache1.singnet.com.sg
> Address:  165.21.83.88
> 
> >www6.internet.gov.sg.
> Server:  dnscache1.singnet.com.sg
> Address:  165.21.83.88
> 
> *** No address (A) records available for www6.internet.gov.sg.
> >^C
> 
> >From: Barry Margolin <barmar at bbnplanet.com>
> >To: comp-protocols-dns-bind at moderators.uu.net
> >Subject: Re: Problems with naming resolution
> >Date: Wed, 09 Jun 1999 13:55:22 GMT
> >
> >In article <19990609122857.46138.qmail at hotmail.com>,
> >John Tan  <d_name at hotmail.com> wrote:
> > >Other people seem to be having problems accessing / resolving names via
> >my
> > >name server. For example, if I try ls -d internet.gov.sg. from
> > >other name servers I get an unspecified error. But I seem to be able
> > >to query correctly. Intermittently users complain that they cannot
> > >resolve the DNS names. The DNS is pridns.gov.sg. appreciate any
> >assistance.
> >
> >The "ls" command uses zone transfers, and you can only do zone transfers
> >from an authoritative nameserver.  You should not expect it to work when
> >using other name servers.  Ordinary queries should work, though.  I tried a
> >few with my name server and they worked fine.  If you still think there's a
> >problem, please be more specific than "havig problems accessing / resolving
> >names"; give some examples that don't involve zone transfers, since they're
> >normally only used by slave servers, not ordinary resolving.
> >
> >--
> >Barry Margolin, barmar at bbnplanet.com
> >GTE Internetworking, Powered by BBN, Burlington, MA
> >*** DON'T SEND TECHNICAL QUESTIONS DIRECTLY TO ME, post them to newsgroups.
> >Please DON'T copy followups to me -- I'll assume it wasn't posted to the
> >group.
> >
> 
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