Hi, Please be more specific about type of authentication you want to use. Describe your environment like: i have windows 2003 ads, my clients a using msie or firefox want ldap authentication or ntlm, or basic- squid-cache.org faq 23 is very helpfull. my example will be like this: installing samba with ntlm and wbinfo_group support adding machine on which you want to put squid in domain as member server. installing squid with basic and ntlm and wbinfo_group support. after that putting acl list for authentication, with wbinfo_group.pl you can make groups(from domain) authentication. and after that restrict access according to user in group with appropiate acl and http_access. Regards, Nikolay tbullock@xxxxxxxx@inet 08.02.2005 23:44 To squid-users@xxxxxxxxxxxxxxx cc Subject [squid-users] http access Hello all: Here is what I want to do: Limit certain users or groups of users to accessing only certain sites that are preapproved by management. I however just cannot wrap my head around the SQUID HOWTO that deals with this type of control. Does anyone have any examples of how this can be accomplished? I currently control who can access the internet by either giving or withholding a username and password via htpasswd.... Cheers, Travis Bullock