RE: [Nolug] DNS Server Problem with TCP

Hi Dustin.

I should add that restarting named doesn't help.

John

   John Souvestre - Southern Star & Integrated Data Systems - (504) 355-0609

> -----Original Message-----
> From: John Souvestre [mailto:johns@sstar.com]
> Sent: Saturday, October 25, 2008 11:26 AM
> To: 'nolug@nolug.org'
> Subject: RE: [Nolug] DNS Server Problem with TCP
>
> Hi Dustin.
>
> redhat-release-4ES-8.0.el4_7.1 is the version on both ns1 and ns2.
>
> bind-9.2.4-30.el4 on both. But I don't think that bind is part of the
> problem since TCP pings to the box fail also when the problem starts.
>
> Thanks,
>
> John
>
> John Souvestre - Southern Star & Integrated Data Systems - (504) 355-0609
>
> > -----Original Message-----
> > From: owner-nolug@stoney.redfishnetworks.com [mailto:owner-
> > nolug@stoney.redfishnetworks.com] On Behalf Of Dustin Puryear
> > Sent: Saturday, October 25, 2008 10:38 AM
> > To: nolug@nolug.org
> > Subject: Re: [Nolug] DNS Server Problem with TCP
> >
> > The exact same version of RH? And what is the kernel version on both?
> > And the version of bind on both?
> >
> > --
> > Dustin Puryear
> > President and Sr. Consultant
> > Puryear Information Technology, LLC
> > 225-706-8414 x112
> > http://www.puryear-it.com
> >
> > Author, "Best Practices for Managing Linux and UNIX Servers"
> > http://www.puryear-it.com/pubs/linux-unix-best-practices/
> >
> >
> > John Souvestre wrote:
> > > Hi all.
> > >
> > > I'm having a strange problem with one of our DNS servers
> (ns1.idsno.net).
> > Our
> > > ns2.idsno.net server is set up almost identically and it has no problem.
> > >
> > > The problem is with the ability to do DNS TCP transfers. What makes
> this
> > really
> > > strange is that TCP works just fine when the box is rebooted. But a few
> > days
> > > later, it stops responding to TCP. I've seen this happen a half dozen
> > times.
> > >
> > > We're running RH. As far as I can tell, IPTables is not being used on
> the
> > box.
> > >
> > > I don't see anything interesting in /var/log/messages.
> > >
> > > The box is behind a PIX but so is the other one. Port 53 UDP and TCP
> are
> > both
> > > enabled.
> > >
> > > Does anyone have any ideas?
> > >
> > > Thanks!
> > >
> > > John
> > >
> > > John Souvestre - Southern Star & Integrated Data Systems - (504) 355-
> > 0609
> > >
> > >
> > > ___________________
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> > > nolug@nolug.org
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> > >
> > >
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Received on 10/25/08