RE: [Nolug] DNS Server Problem with TCP

Hi Dustin.

Ns1 is set up as master and ns2 is a slave. The bind config is the same,
otherwise.

The /etc/services file is the same on both systems. It includes

  domain 53/tcp # name-domain server
  domain 53/udp

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 10:40 AM
> To: nolug@nolug.org
> Subject: Re: [Nolug] DNS Server Problem with TCP
>
> Also, you say "setup almost identically". What running network services
> are on the two DNS servers?
>
> --
> 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/
>
>
> Dustin Puryear wrote:
> > 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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Received on 10/25/08