International Practice to Bolck Attacker IPs

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Attacker IP blocking
Does any one know about best practice to block attacker IP's? What commonly run's or install to block such activities in multinational companies regarding network security..... Please I need detail...
ASKED: January 19, 2010  5:39 PM
UPDATED: January 19, 2010  6:40 PM

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Hello,

We generally, as a US-only company, block APNIC subnets, AFRINIC subnets, and the like. This seems to clear up some of the security risks pretty well.

The listing of subnets can be found online by doing a google search.

Thanks!

Ryan

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