RE: Re: DNS lookup problems after upgrade from Etch to Lenny

["Stackpole, Chris" <CStackpole@barbnet.com>]

> From: news [mailto:news@ger.gmane.org] On Behalf Of Jeffrey Cao
> Sent: Thursday, June 18, 2009 2:43 AM
> Subject: Re: DNS lookup problems after upgrade from Etch to Lenny
> 
> On 2009-06-16, Stackpole, Chris <CStackpole@barbnet.com> wrote:
> >> From: Adrian Levi [mailto:adrian.levi@gmail.com]
> >> Sent: Tuesday, June 16, 2009 1:19 AM
> >> Subject: Re: DNS lookup problems after upgrade from Etch to Lenny
> >>
> >> >> didn't have it before and on another system running a fresh
build
> > of
> >> >> Lenny running the exact same software handling a similar load
and
> > its
> >> >> DNS ask rate is just as low as it was on this system running
Etch.
> >> >>
> >> >> I am at a loss. I appreciate any help people can give.
> >>
> >> Silly question, did you check resolv.conf?
> >
> > I did. It is the same as the other machines
> >
> > Search my.domain
> > Nameserver ip.of.dns.1
> > Nameserver ip.of.dns.2
> >
> Are you sure all those DNS servers work? especially for the first one.
> Commented all others and leave only one to try one by one.
> 
> I met similar problem before. Some APPs just use the first DNS server.
> If it failed, it will not try others. And some other APPs try others
when
> the first one failed.
> So, maybe your first DNS does not work properly.

Thanks for the suggestion. I did verify that the DNS server is in proper
working condition. 

I still have not been able to figure out what caused the problem,
however, I did get the DBNDNS caching to work. This has at least gotten
the network guys off my back, but it has added an extra layer for me to
diagnose problems through in the future. :(

Thanks again for responding,
Chris Stackpole