How do you block IRC sessions at workstation (NT4.) level? We need to block the Lab (student) workstations from ?Chatting? but need to ensure Internet availability for student research. We need to allow admin-staff to use the chat services.
We have tried to enable ?configure security? in the advanced section of the TCP/IP properties thus allowing only certain HTTP, TCP/IP and UDP ports gain Internet only access.
We performed a capture and found 53, 80 (of course) 1136, 1091, 1152, 1156, 1161, 1163, 1166, 1167 (?) being used but the internet will not work only using these port.
We want to stop AOL, MSN, Yahoo, chats (messengers), etc?at a High School. Our firewall server doesn?t block chats sessions and these company?s have way too many I.Ps to track down. Any ideas???
Lee Maris
Administrative Technologist