[ale] another DNS question == [ale] DNS lookups slooowwww.....

[John Wells]

Chris,

I read this the first time and considered it.  The
problem I run into is that our internal DNS is on an
NT box that I have no control over.  I'm one of the
more fortunate in that I don't have to go through the
firewall to get to the external net (yet)....rather, I
have a connection to a T1 running into one of my NICs.
 So, what I want to do is have the best of both
worlds...using the internal NT dns (which doesn't do
forwarding) to lookup internal sites, and the external
dns to hit up external sites.

Thanks!

John
--- Christopher Bergeron <christopher at bergeron.com>
wrote:
> John, this might help:
> 
> 
> 
> -----Original Message-----
> From: John Wells [mailto:jbwellsiv at yahoo.com]
> Sent: Monday, October 22, 2001 1:58 PM
> To: Cleveland Flowe
> Cc: ale at ale.org
> Subject: Re: [ale] DNS lookups slooowwww.....
> 
> 
> Did as you said and it seems to be working.  I have
> named running and added my machine's url to
> /etc/resolv.conf so lookups will try to query my
> DNS.
> I can nslookup and dig hosts on both internal and
> external nets, but both ping and netscape fail to
> resolve.
> 
> What am I missing?
> 
> Thanks,
> 
> John
> 
> --- Cleveland Flowe <flowe at innoverse.com> wrote:
> > John Wells wrote:
> > >
> > > I'm setting up a machine with two
> interfaces...one
> > to
> > > a T1 line and the other to a private network.
> > >
> > > My /etc/resolv.conf looks like:
> > >
> > > search foobar.com
> > > nameserver 198.153.233.2 # private network DNS
> > server
> > > nameserver 38.3.3.3 # external DNS
> > > nameserver 38.3.3.2 # external DNS
> > >
> > > This configuration allows both machines on the
> > > internal and external networks to be looked up.
> > > However, when I do a look up on an external site
> > (like
> > > www.linuxdoc.org), it takes about 15-20 seconds
> to
> > > resolve.  Internal addresses resolve
> immediately.
> > >
> > > If I move the external entries to the top of the
> > list,
> > > the external address lookups have no delay, but
> > the
> > > internal lookups fail.  Is there a way to
> > configure
> > > this so that both lookups perform efficiently?
> >
> > John, remove references of the external DNS in
> > resolv.conf, and setup
> > your private DNS server to forward queries to the
> > external DNS. In
> > /etc/named.conf, for bind versions 8 or 9, include
> a
> > forwards
> > sub-statement in the options statement like so:
> >
> > options {
> >   forwarders {38.3.3.3; 38.3.3.2;};
> > };
> >
> > ---
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> > See http://www.ale.org/mailing-lists.shtml for
> more
> > info. Problems should be
> > sent to listmaster at ale dot org.
> >
> 
> 
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