Re: squid.conf (udp_incoming/outgoing_address)

From: Henrik Nordstrom <>
Date: Sat, 28 Feb 1998 02:18:08 +0100

You don't need to configure any of them.

The primary use is if you want to run more than one Squid on the same
host (on different IP addresses).

A secondary use (althougt not recommended) is if you want to shield off
your Squid by forcing it to only listen on a internal interface.

The comments on udp_xxx_address is a bit misleading. If
udp_incoming_address is set then the same address is used as outgoing,
unless udp_outgoind_address is set.

Simplest configuration:
None of them set

Shielded configuration (assuming your OS shields the internal interface)
If you have external siblings (caches fetching cache hits from you) then
you can't use this to shield Squid.

Recommendation for shielding: Use a firewall instead of telling Squid
which interfaces to use. Binding Squid to a internal interface is NOT a
reliable security measure on many OS:es.

Henrik Nordström
Sparetime Squid Hacker
Received on Fri Feb 27 1998 - 17:35:02 MST

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