Re: [squid-users] TCP_MISS/503 0 CONNECT errors

From: Amos Jeffries <>
Date: Tue, 03 Jul 2012 00:51:26 +1200

On 2/07/2012 8:28 p.m., Bruno Santos wrote:
> Hi Amos,
> thank you for the reply.
> I don't have IPV6 on my network and i've disabled CentOS IPv6 :
> cat /etc/sysconfig/network:
> I'm using CentOS 5.8 and the last squid i can find using yum is this one i'm using: squid- - although yum (when trying to upgrade) says i've installed squid-2.6.STABLE21-6.el6.

That is probably the problem then. 3.1 initial IPv6 support did NOT do
failure very well at all.

> I'm going to further study and try to solve this issues with yum and squid.
> In my DNS (bind-9.3.6) i've disabled IPv6 name resolution... (i was getting a lot of errors in /var/log/messages). Can this have something to do? Should i enable IPv6 in bind ?

This would cause slowness, ppossibly NXDOMAIN for IPv6-enabled domains.
But you need to see the error page to know whether it even is DNS or TCP

Received on Mon Jul 02 2012 - 12:51:34 MDT

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