[SunHELP] DNS working oddly

[Bret Adams]

Lara:

Check the contents of your named.ca file and make sure it did not get 
erased.  It should have the references to the root servers.

Bret

At 10:31 AM 7/12/2005, you wrote:
>Hi Phil
>
>Phil Stracchino wrote:
> > Steve Sandau wrote:
> >
> >>Lara Matthews wrote:
> >>
> >>
> >>>Hi
> >>>
> >>>I wonder if someone can point me in the right direction.  My DNS server
> >>>is acting strangely.
> >>>
> >>>It can resolve itself and the other domains that it runs but does not
> >>>want to resolve anything outside.
> >
> > [...]
> >
> >>>bash-2.05# nslookup www.sun.com
> >>>Server:  ns.accesscomputing.co.uk
> >>>Address:  213.128.229.177
> >>>
> >>>*** ns.accesscomputing.co.uk can't find www.sun.com: Server failed
> >>>
> >>>Any thoughts why this might be happening?
> >>>
> >>
> >>Are you behind a firewall? Is it allowing port 53 tsp and udp in and
> >>out? Do you have a current hints file? What does 'dig' with no
> >>parameters tell you? (It ought to come back with a list of root servers.)
> >
> >
> >
> > This may be stupidly obvious, but it just bit me.  Is routing working
> > correctly on the machine?  One of my nameservers just stopped performing
> > external lookups, and I eventually found that something had overwritten
> > /etc/defaultrouter and deleted the default route.  When I fixed those
> > two, suddenly it all worked fine again.
> >
> >
>
>Thanks, good idea but no dice.  Routing seems to working fine. I can
>ping the outside world I just can't do an nslookup on it :(.
>
>Oh checked out the firewall too and it is allowing UDP and TCP on port 53.
>
>Lara
>
>[demime 1.01d removed an attachment of type application/x-pkcs7-signature 
>which had a name of smime.p7s]
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