> Authentication credentials represent and verify the identity of your > proxy. That is a fixed thing so why would the credentials used to > verify > that static identity need to change? I'm only speaking about users identities, not something like cache_peer login=XXX So each user must have is own ID > > NP: Proxy-auth is not related to the message itelf, but to the > transport > mechanism. Do not confuse the identity of the proxy/sender with the > traffic flowing through it from other sources. Yes > > That said, you can use request_header_add to add whatever headers you > like to upstream requests. Even proxy-auth headers. You just cant > easily > handle any 407 which result from that when the credentials are not > accepted. So the ACL you use better be 100% accurate when it matches. Ah ok great, so maybe we can imagine something like this If an acl match a specific address (eg 10.1.1.1) I put Authorization: BASIC Z3Vlc3Q6Z3Vlc3QxMjM= ? It's what I was talking about helper, maybe a separate program should be better for matching IP=USERNAME If there is many users the ACL will be very long and complex ... Thanks for your help _______________________________________________ squid-users mailing list squid-users@xxxxxxxxxxxxxxxxxxxxx http://lists.squid-cache.org/listinfo/squid-users