From: Dancer <>
Date: Mon, 19 Apr 1999 12:12:48 +1000

Henrik Nordstrom wrote:
> Marc van Selm wrote:
> > Squid - per default - has a limited set of ports it allows for https. 443 and
> > 563. All other ports are denied.
> I would say per specification. The CONNECT method specification strongly
> recommends limiting which ports the method may connect to due to the
> obvious security implications of having a method for establishing a
> unfiltered TCP tunnel.

I agree. Having seen what people will try to do with an unrestricted IP
tunnel (I'm as guilty as anyone...I ran SSH connections through a
squid-hierarchy via a fast backbone to a server in the USA. I only had
to write a couple of lines of shell-scripts at each end to make this
work. Had I done something improper with the connection (more improper
than shouldering interactive traffic on what was supposed to be a fast
back-to-back HTTP backbone) I seriously doubt that it could have been
effectively tracked, and at some point, someone will surely point the
finger at a cache-administrator for permitting the misuse)

A legacy of my misspent youth.

Received on Sun Apr 18 1999 - 19:59:03 MDT

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