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Why block incoming pings?
Authored by: Alrescha on Aug 26, '03 07:05:40PM

Ummn... I prefer to think of it in this way:

The Internet is not your local in-house LAN. Every bored script-kiddie will be running programs to attempt to break into every computer in sight.

No traffic should be allowed unless the system has a particular reason for turning it on. Allowing protocols without understanding why and how things work on a network is not secure at all.

Turning off ICMP will not harm anything. The chances of getting a real, valid, and useful ICMP message (a redirect, perhaps) are practically nil. The chances that a script tries to ping you before launching a full-fledged attack are much greater.

A.



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