Re: http://ip.address.not.hostname/

   Date: Fri, 30 Aug 1996 22:08:02 -0500
   From: Scott Lystig Fritchie <fritchie@MR.Net>
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   Perhaps this is a silly question and I should simply go home and get
   some sleep this holiday weekend. :-)

   Using Squid 1.1alpha11, I try to retrieve a file via
   http://137.192.245.217/ and I get a "DNS Domain '137.192.245.217' is
   invalid: Host not found (authoritative)" error from Squid. A search
   through the Squid config file doesn't seem to mention anything about
   that. Did I miss something? ... Harvest cached 1.4pl3's behaves
   well, though. {shrug}

I found that this occurs when there is no PTR record in the DNS for
the given IP address. There is code in dnsserver.c that tries to look
up the PTR record. To disable this behavior you can recompile with
-DNO_REVERSE_LOOKUP.

It was causing us lots of trouble because our users use Pointcast
through the proxy and the Pointcast servers, at least some of them, do
not have PTR records for their IP address. I saw disabling Pointcast
as a feature :-), but not everyone agreed with me.
Received on Sat Aug 31 1996 - 10:03:51 MDT