HI, I would like to authenticate my users to an Windows ADS. This is working fine with the following entrys in my squid.conf. auth_param ntlm program /usr/bin/ntlm_auth --helper-protocol=squid-2.5-ntlmssp --require-membership-of=CORPORIS\\domänen-benutzer auth_param ntlm children 5 auth_param ntlm use_ntlm_negotiate on auth_param basic program /usr/bin/ntlm_auth --helper-protocol=squid-2.5-basic --require-membership-of=CORPORIS\\domänen-benutzer auth_param basic children 5 auth_param basic realm ELIXIA Proxy Server auth_param basic credentialsttl 2 hours auth_param basic casesensitive off authenticate_cache_garbage_interval 10 seconds authenticate_ttl 0 seconds acl auth proxy_auth REQUIRED I was wondering if it is possible to identify more than just one group. I would like to authenticate several groups with different rights. Thanks for any help Christian