-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - --> I finally was able to control use of msn messenger adn yahoo messenger via squid. It not perfect but it works Please find below guides to allow msn messenger and yahoo messenger access on squid if iptables ports are closed and/or ipforwarding is diabled ( please note in yahoo messsenger select use option connection option -> firewall with no proxies) - --> Rules below allow ip 192.168.1.235 to access only yahoo messenger and yahoo subdomain sites acl yahoo_dst dstdomain .yahoo.com .imgag.com .llnwd.net .msads.net .yimg.com acl allow_yahoo_messenger src 192.168.1.235 http_access allow allow_yahoo_messenger yahoo_dst - --> Rules below allow ip 192.168.1.235 to access only msn messenger and msn subdomain sites acl MSN_SITE dstdomain .msn.com .hotmail.com acl MSN req_mime_type ^application/x-msn-messenger$ acl MSN_SITE2 dst 207.46.107.0/255.255.255.0 207.46.108.0/255.255.255.0 207.46.109.0/255.255.255.0 207.46.110.0/255.255.255.0 64.4.36.0/255.255.255.0 207.46 .26.0/255.255.255.0 207.46.111.0/255.255.255.0 acl allow_msn_only src 192.168.1.235 http_access allow allow_msn_only MSN http_access allow allow_msn_only MSN_SITE http_access allow allow_msn_only MSN_SITE2 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (GNU/Linux) Comment: Using GnuPG with Mandriva - http://enigmail.mozdev.org iD8DBQFGUcGd6d5U1aOiE/ARAtr3AJ9r/IjlEW/y1I3iOBXgU+HkapsncgCfYopz e1SyU22HEQAHoJw5Totb3X8= =Hy97 -----END PGP SIGNATURE----- -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.