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> It is virtually impossible to block them with a firewall. Maybe a firewall is the wrong way. How about using an IDS? The basic idea: - - Define and publish a company wide policy outlawing the use of Instant Messengers. - - Use an IDS to monitor if the policy if violated. The other problem you are having is users installing software. Something that has to be eliminated if you try to run a secure network. - -- - ------- [EMAIL PROTECTED] Join http://www.DShield.org Distributed Intrusion Detection System -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.6 (GNU/Linux) Comment: For info see http://www.gnupg.org iD8DBQE8jp9twWQP+4im9DYRAuDmAJ9OxsNEcPxhFz/9JHqnuYycBswtXgCePWax V/cQWxnRCGalv/w8koQ7+48= =+IpE -----END PGP SIGNATURE-----
