Hai All, i was trying to setup a squid proxy server with the wb_group authentication. in my windows 2003 ADS i am having a group called "internet" i need to give internet access for the ppl belongs to that group in my corrent configuration all users in my domain can authenticate to squid... I am using following configuration..and i wish to stop that.. ============================================= auth_param basic program /usr/bin/ntlm_auth --helper-protocol=squid-2.5-basic auth_param basic children 5 auth_param basic realm Squid proxy-caching web server auth_param basic credentialsttl 2 hours acl password proxy_auth REQUIRED acl mynet src 172.16.0.0/255.255.0.0 http_access allow mynet password ============================================== can anyone help me.. how i can provide the proxy only for the users in ADS group "internet" Samba version is.. samba-3.0.21b-3 Squid Version is... squid-2.5.STABLE6-3.4E.11 Using RHEL 4 Please help me.. to find some valuable docuents to do this.. also can i use 2 authentication system in same time.... like.. mac_address (arp) + wb_group if possible i wish to go for this Only.... so please Help thank you in advance.. jerrynikky.