----- Original Dear All Squid box is implemented to uses ncsa_auth for user authentication. I want to restrict user so that only one session can be server by SQUID at a time. E.g ig user one has been authenticated from one desktop at the same time he could not use same user name on another desktop? Can we do that - if first session is half an hour older then permit secon session and terminate first one? Any suggession or url is appreciated. acl FOO max_user_ip 2 acl BAR proxy_auth REQUIRED http_access deny FOO http_access allow BAR Regards, Komal