Re: Primary & Secondary DNS Server Problem

From: Brian (bhanley72_at_yahoo.com)
Date: 01/13/05


Date: Thu, 13 Jan 2005 16:21:52 -0600

I set the timeout to 20 seconds and it still fails. Looks like it's OUT.
Also, that DNS server fails the Recursive test when I do it in the DNS gui
interface. I'm wondering if I remove DNS from this server and re-add it that
will take care of the problem.
Thanks for your help!

"Herb Martin" <news@LearnQuick.com> wrote in message
news:%23LIMuQb%23EHA.2016@TK2MSFTNGP15.phx.gbl...
> "Brian" <bhanley72@yahoo.com> wrote in message
> news:#1Hpnka#EHA.2076@TK2MSFTNGP15.phx.gbl...
> > When I do an NSLookup from DNS2, it fails with DNS timeout.
> >
>
> What happens if you increase the timeout? Is it just slow,
> or really broken?
>
> nslookup -time=10 NAME dns.server.IP.address
>
> -time=10 can be 20 or whatever until you convince yourself
> it is OUT (or works slow.)
>
> If it is out, then it is one of:
>
> 1) DNS server not working
> 2) DNS server not on
> 3) DNS server with firewall
> 4) Client set to wrong DNS server address
> 5) Firewall or other filter BETWEEN them
>
> And remember to ignore any INITIAL error from
> NSLookup (on the first few lines) IF you get the
> answer sought down below before the command
> output completes.
>
> --
> Herb Martin
>
>
> >
> > "Mark Renoden [MSFT]" <markreno@online.microsoft.com> wrote in message
> > news:eVVlFbD%23EHA.1300@TK2MSFTNGP14.phx.gbl...
> > > Hi Brian
> > >
> > > What happens if you do an NSLookup from DNS2 using one of the servers
> > you're
> > > forwarding to?
> > >
> > > Kind regards
> > > --
> > > Mark Renoden [MSFT]
> > > Windows Platform Support Team
> > > Email: markreno@online.microsoft.com
> > >
> > > Please note you'll need to strip ".online" from my email address to
> email
> > > me; I'll post a response back to the group.
> > >
> > > This posting is provided "AS IS" with no warranties, and confers no
> > rights.
> > >
> > > "Brian" <bhanley72@yahoo.com> wrote in message
> > > news:uaQIJ8C%23EHA.3640@tk2msftngp13.phx.gbl...
> > > > I've got a Win2000 AD domain.
> > > > Two DNS servers configured.
> > > > All network clients have DNS1 as their primary and DNS2 as their
> > secondary
> > > > DNS servers (XP clients).
> > > >
> > > > The other day, DNS1 crashed. During that time, no clients could
> resolve
> > > > external addresses. I was shocked. I got DNS1 back up within a few
> > > > minutes,
> > > > but now I'm concerned as to why DNS2 is not resolving external
> > addresses!
> > > >
> > > > Here is output for each DNS server using nslookup for cnn.com:
> > > >
> > > > DNS1:
> > > >>cnn.com
> > > >>Server: DNS1.corp.us
> > > >>Address: 172.1.1.1
> > > >>
> > > >>Non-authoritative answer:
> > > >>Name: cnn.com
> > > >>Addresses: 64.236.24.12, 64.236.24.20, etc
> > > >
> > > >
> > > > DNS2:
> > > >>cnn.com
> > > >>Server: DNS2.corp.us
> > > >>Address: 172.1.1.2
> > > >>
> > > >>DNS request timed out.
> > > >> timeout was 2 seconds.
> > > >>*** Can't find address for server cnn.com: timed out
> > > >
> > > > Both servers have the same forwarders set up. Any ideas of what I
> should
> > > > be
> > > > looking for?
> > > >
> > > > Thanks!
> > > >
> > > >
> > > >
> > >
> > >
> >
> >
>
>



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