Hi, Looking at the configuration examples, I see there are several ways to authenticate against AD. If I don't make a mystake : - squid_kerb_auth http://wiki.squid-cache.org/ConfigExamples/Authenticate/Kerberos - ntml_auth with samba/winbind http://wiki.squid-cache.org/ConfigExamples/Authenticate/Ntlm Basically, what are the differences between both ? I guess they both provide SSO (but it doesn't work at least for IE6 with squid_kerb_auth), auth_ntml provides group management, and then what else ? Thanks for any input on this subject, Jeremy