Re: DNS and Squid

John,

I suppose that your database servers are not registered in DNS or the DNS
containing addresses of your DB servers is not properly registered in your
parent domain DNS.

Regards,
M.

John Hammer:
>
> I am a newbie so please be kind. I did search part of the archive and
> didn't find what I needed, so here goes.
>
> We are a college library running Squid 2.1.PATCH1 on Slackware. We use
> Squid to provide access to our licensed databases for authenticated
> off-campus users. After running without a problem for several months, a
> few days ago we started having problems with people accessing Squid. I
> found out our college's IS department had changed the address of our DNS
> server. After changing the entry in the resolv.conf file, our users could
> now access Squid but could not go on to the databases. The following
> screen is returned:
>
> >The requested URL could not be retrieved
> >
> >
> >
> >While trying to retrieve the URL:
> http://xxxxxxxx.xxxxxxxxx.com/itxxx/sanaxxx
> >
> >The following error was encountered:
> >
> > Unable to determine IP address from host name for
> xxxxxxxx.xxxxxxxxx.com
> >
> >The dnsserver returned:
> >
> > Name Server for domain 'xxxxxxxx.xxxxxxxxx.com' is unavailable.
> >
> >This means that:
> >
> > The cache was not able to resolve the hostname presented in the URL.
> > Check if the address is correct.
> >
> >
> >
> >Generated Tue, 14 Sep 1999 22:34:12 GMT by hermes.sac.accd.edu
> (Squid/2.1.PATCH1)
> >
>
> However, when I access these databases from the campus, using the same
> address but not going through the proxy server, I get connected. Using the
> proxy from on-campus also gets the error message.
>
> Do I need to change something in the squid.conf or in squid.sh? Any
> suggestions will be accepted.
>
> Thanks in advance for your help.
>
> *******************************************************
> John C. Hammer
> Cataloging/Automation Librarian
> San Antonio College LRC 210/733-2669 (voice)
> 1001 Howard St. 210/733-2597 (fax)
> San Antonio, TX 78212 jhammer@accdvm.accd.edu
> *******************************************************
>

-- 
           Maciej Kozinski         http://www.uck.uni.torun.pl/~maciek/ 
	   Remember: Un*x _IS_ user friendly... It's just selective about
		     who it's friends are.