[squid-users] Problems with IPC (inter process communications)

From: Luis Eduardo Cortes <luisc@dont-contact.us>
Date: Tue, 10 Feb 2004 10:08:35 -0300


I'm using Squid/2.3.STABLE4-hno.CVS in a server that is configured a packet
filtering with iptables. This server has two ethernet adapters, internal
with IP and external with IP The default policy
for packet filtering is drop everything, and for IPC to work, I was configured
this rules:

iptables --append OUTPUT --out-interface lo --source --destination --jump ACCEPT
iptables --append INPUT --in-interface lo --source --destination --jump ACCEPT

this means, traffic goes in/out from loopback-ip to loopback-ip for all
protocols through loopback adapter. I have other rules but for standard
internet services.

Suddenly, some day, after months in production, without doing any change
to iptables script, squid have no more response.

By debugging /var/log/messages, I modified iptables rules to accept traffic
from to, and from to, and now
everything it's OK.

My questions are why suddenly has changed this behavior ? is this a
bug ? can I restore the old behavior ?

See << messages >> attach for debugging details.

Thanks in advance.

Received on Tue Feb 10 2004 - 06:07:41 MST

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