RE: [squid-users] Squid and DNS

I'm not THE expert, but it looks as though your client is running W2K,
ME or XP and it is not in the be.com domain (in it's DNS tab under
TCP/IP properties it doesn't have be.com anywhere)
 
What gives me the clue is that the FQDN seems to resolve, but for one of
those above OS's to assume a domain (the domain) seems to have to be in
the clients DNS setup under TCP/IP.
 
aldo

-----Original Message-----
From: Fran Boudraux [mailto:squidlist@hotmail.com]
Sent: Wednesday, February 13, 2002 4:43 PM
To: squid-users@squid-cache.org
Subject: [squid-users] Squid and DNS

Squid 2.4.stable.
I need some clarification regarding how squid works with local dns
server.Here is the setup:
Squid configured to use the following name resolvers: (cat
/etc/resolv.conf)
search be.com # search local dns server first
nameserver 10.0.84.9 # local dns server
nameserver 207.181.102.5 # ISP dns sevrer
nameserver 207.181.102.6 # ISP secondary dns server
 
All workstation set to use this proxy server, have 'Bypass proxy for
local addresses' enabled, and have only one dns server setup in ip
properties (10.0.84.9)
 
What I don't undersand is the following:
Let's say local dns server holds be.com local domain name and it has
entry for ultra1which is:
ultra1 IN A 10.0.84.3 # running local intranet web server
 
When I ping ultra1 from Sqiod box I get the reply from 10.0.84.3
When I ping ultra1 from the dns server itself I get the reply from
10.0.84.3
When I ping ultra1 from the workstation I get the reply from 10.0.84.3
When I open the browser and type http://ultra1 I can get to the site.
Now I go to the IE browser and go to the proxy settings and unmark
Bypass proxy for local addresses and I receive error message from proxy
server that address cannot be found in local cache.(If I type
http://ultra1.be.com I can access it)
Questions:
1. How come proxy server can resolve the address, dns server can resolve
the address, workstation can resolve the address, but when I unmark
Bypass proxy for local addresses it doesn't work?
2. When browser is configured to use proxy then dns name resolution
request for the site isn't done on the workstation, but rather proxy
machine tries to resolve the name for the workstation, right? If this is
correct then why when I unmark Bypass proxy for local addresses on
browser it doesn't work?
 
Thanks.
 
 
 
Received on Wed Feb 13 2002 - 15:01:24 MST