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Re: Suggestion for some network parameter defaults



On Mon, Nov 29, 2004 at 12:51:22PM +0100, Troels Arvin wrote:
> > net.ipv4.icmp_echo_ignore_broadcasts       (current: 0, proposed: 1)
> 
> I actually find it useful that ping broadcasts are allowed, to be able to
> quickly see which hosts are up.

It can get used as a DDoS amplifier however so in general its only safe if 
it is behind a firewall


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