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How can I block the Internet in an effective way leaving MSN working?

Last response: in Networking
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December 13, 2010 6:05:30 PM

Hello guys,

I need to block the Internet and leave the MSN working on a Windows XP computer in a small business network. Our router doesn't provide anything that could effectively do it.

I have tried blocking the Internet Explorer through content advisor.... They just bring a flash drive with firefox/chrome/opera portable and use the Internet. I have tried to block these applications but there are too many to keep track of.

I know I can totally block the Internet giving the computer a blind DNS or just change the gateway but I gotta leave MSN working. I thought about a proxy but we don't have a spare computer to serve this purpose.

Any ideas? I really appreciate it. Sadly we can't find employees who respect our company rules and we gotta do it.
December 13, 2010 6:29:38 PM

What router do you have?

On mine I can disable port 80 for everyone or a certain range of IPs.
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December 13, 2010 9:46:12 PM

We use an older speedstream router which can block websites and services but not by IP/Mac and we can't change this router because it's provided by our ISP.
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December 14, 2010 1:15:15 AM

how about putting a router after the speedsteam?

DSL >> SpeedStream >> router >> network

just make sure the LAN IPs of the Speedstream and the router are NOT the same
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December 15, 2010 4:45:51 AM

Is it just one computer you are trying to block internet?
I bet you can get a firewall program to do it for you. Just use windows built in firewall, and block outbound traffic port 80.
I do like Emerald idea of just adding a second router. You can get a cheap on for like 50-70. and that will mostly likely give you better security as well.
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