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Blocking Imesh and other P2p

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Folks I need help on trying to block these programs...Any Ideas..I have block ports 1214
ports 4000-5000 to no avail.

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by carlos.nino

Since p2p software can use various port numbers, the best solution is to block all ports except the ones you really trust (for you normal applications). Find out which ones you really need and block the rest. If you get an error in an application, you'll know what port to open if you forgot it.
I think it's worth it security likewise.

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