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How do you block IRC sessions...workstat

By leemgeek ·
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, 10**, 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

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How do you block IRC sessions...workstat

by leemgeek In reply to How do you block IRC sess ...

Point value changed by question poster. Point will be given when:
1) Suggest ports are tried on a workstation here and we successfully block all chats at the workstation level yet have yet allow Internet availability on the workstation.
2) As soon as this test is sucessfull the point will be release.

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How do you block IRC sessions...workstat

by ChuckAB In reply to How do you block IRC sess ...

Here's a couple of odd thoughts:
1. The Chat clients should be an executable or use certain DLL's that can have their security attributes set so that only Admin's can access them.
2. Set folder access for the students to Read, Write, Change, Delete - but NOT Execute in their writeable directories (not sure this will work - but it sounds good :) ).

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How do you block IRC sessions...workstat

by leemgeek In reply to How do you block IRC sess ...

Appreciate your time to answer. Your dll block may have worlked but we just figured it out port 1080 was the one we were missing. This permits Students to view the internet text and pics but block all else at the workstation level. We image our computers so we installed this on the image and it works fine. We appreciate your taking the time to answer this question but we figured it out on our own. Who needs a firewall!!!?.a joke, not a challenge,.

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How do you block IRC sessions...workstat

by estebandelatorre In reply to How do you block IRC sess ...

NOT QUIETE SURE IF YOU CAN DO IT. THE REASON IS THAT MANY PORTS ARE INTERNET PORTS.
LIKE MUSICMATCH?S RADIO, IT'S WORK OVER HTTP DEFAULT PORTS. WHAT I HAD ACCOMPLISH IN THESE CASES IS "ADDRESS BLOCKING" NOT PORT BLOCKING.

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How do you block IRC sessions...workstat

by leemgeek In reply to How do you block IRC sess ...

Appreciate your time to answer. Microsoft set up the ?TCP/IP>>Properties>>Advanced setting>> Security? to do this and we just figured it out port 1080 was the one we were missing. This permits Students to view the internet text and pic but block all else at the workstation level. We image our computers so we installed this on the image and it works fine. We appreciate your taking the time to answer this question but we figured it out on our own. Who needs a firewall!!!?.a joke, not a challenge,.

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How do you block IRC sessions...workstat

by leemgeek In reply to How do you block IRC sess ...

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