Dear all, is it possible to block MSN sessions from my LAN's users using only a SQUID proxy connected to Internet ??? Any idea ???? Thanks a lot Jeronimox

You can block a few sites with squid by either adding them to squid.conf or creating another file containing a list of restricted sites. Editing /etc/squid/squid.conf; add lines similar to the following: acl msn url_regex messenger.hotmail.com http_access deny msn That should deny all access to messenger.hotmail.com which is what MSN uses. Creating an ACL list; create a file called /etc/squid/squid-block.acl and put in it what you want to deny access to, eg: messenger.hotmail.com .msn.com microsoft The above will deny access to messenger.hotmail.com, anything..msn.com and any URL with microsoft in it. Then in your squid.conf file: acl bad url_regex "/etc/squid/squid-block.acl" http_access deny bad NB If you start blocking sites with words like "sex" in them you may have to create another file of accepted URLs like www.middleSEXuniversity.edu.uk. PS The above methods will only work if your users are using MSN through your proxy. If they are going straight out through a gateway you will have to use firewall rules instead.