Did you try something like
http://squidkerbauth.cvs.sourceforge.net/viewvc/squidkerbauth/squid_kerberizer/ ?
It is a local proxy which uses the credentials of the logged in user to
authenticate to the next proxy (e.g. squid). It is a POC and works on Unix
and Windows.
Markus
"Bucci, David
Ok, Amos, now I finally understand in detail what you suggested below ... and
cool as it is, it won't work for us.
To review, what you outlined is an approach to having client software on the PC
authenticate to the local squid (forcing the authentication with an
"http_access allow !all"). Then
