Ideas on Detecting Proxy Use?

Von Elm, William J billve at bnl.gov
Wed Apr 24 23:48:16 GMT 2002


Hi All,
   Does anybody have any insight or references on how to determine if the
traffic inbound to a webserver is coming from a proxy such as AnalogX or
Squid?  Do these proxies use a predictable range of source ports or are
there any other characteristics that can serve to 'fingerprint' them?
Thanks in advance for your thoughts.

--
Bill Von Elm
Brookhaven Nat'l Laboratory
billve at bnl.gov



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