Snort mailing list archives

Re: Log HTTP(S) URLs


From: "Paul Melson" <pmelson () gmail com>
Date: Mon, 19 Mar 2007 11:22:08 -0400

a search for terminating proxy brought up the fact that since version 2.5
squid is capable of proxying 
transparent https connections. 

http://wiki.squid-cache.org/SquidFaq/CompleteFaq#head-593dae4b6b740816917a6c
c2ce5854d3d43624ee

Using Squid's --enable-ssl switch does not act as a transparent proxy via
NAT port redirection*, and will cause browser warnings for every browser I
can think of.  Squid's certificate will fail to match the intended
destination domain and/or CA certificate, forcing your users to click "Yes"
a bunch of times in order to use the web.  Seriously, you'd be better off
blocking SSL altogether.

Using Squid's support for the CONNECT method is neither transparent, nor
does it terminate SSL.  It will not tell you what URL the browser visits,
only the destination IP address and port.

* Making Squid into a transparent proxy (or making any transparent proxy)
requires that you put a NAT device in your network path that redirects
traffic to the proxy.  It's not a trivial change to your border
architecture.

PaulM


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