Re: [squid-users] icp port problem

Hi,

On Tue, 17 Apr 2001, TomC wrote:

> Hi,
> The fllowing is some config entries of squid in my company:
> # TAG: icp_port
> # The port number where Squid sends and receives ICP queries to
> # and from neighbor caches. Default is 3130. To disable use
> # "0". May be overridden with -u on the command line.
> #
> icp_port 0
> cache_peer hostname sibling 8080 3130 proxy-only no-query
>
> I have some question. The squid is compiled with enable cache digest so
> I think the cache peer will communicate with cache digest. But I don't
> know why another system engineer use "3130" instead of "7" in the entry
> "cache peer" as I read the doc of squid that they say that we should use
> "7" if we are not using icp. Why?

Port 3130 is typically where an ICP-aware proxy listens for ICP packets.
Port 7 is the "echo" port (see /etc/services). It is typicall handled by
inetd as an internal process and simply "echoes" back what you send it.
Since you have specified "no-query" I am guessing that "7" is there so
that if you query it you'll get an answer and not declare it dead and
therefore stop using it.

Colin
Received on Mon Apr 16 2001 - 22:03:16 MDT