Has anyone out there had any real success in Blocking access to external Instant Messenger programs?
I have written outbound filters to block all but the standard ports, and that seemed to work temporarily, but of course these programs seem to do a port scan and connect again. I have the CyberNOT option on my GB-Flash if there is anyway to incorporate it in that. Otherwise does anyone know of a list of IP addresses that can be blocked for MSN, AIM, and Yahoo IM? I realize that this should be a policy issue and that Manager's should be held accountable for the actions of their employees, but unfortunately our organization doesn't seem to want to make an issue of it and thinks I should find a technical solution. Thanks for any assistance anyone can provide! Bob Reasoner Harris County Public Health & Environmental Services
