Re: FreeBSD DDoS protection

Ian Smith <[email protected]> Wed, 13 Feb 2013 21:07:40 +1100 (EST)

Newsgroups	gmane.os.freebsd.isp,gmane.os.freebsd.security.general
Message-ID	<[email protected]>

On Wed, 13 Feb 2013 09:28:00 +0100, Dag-Erling Smørgrav wrote:
 > Ian Smith <[email protected]> writes:
 > > Dag-Erling Smørgrav <[email protected]> writes:
 > >  > Slight correction: dropping *all* ICMP is a bad idea.  You can get by 
 > >  > with just unreach.  Add timex, echoreq and echorep for troubleshooting.
 > > rc.firewall, phk@? has long recommended 3,4,11 as "essential" icmptypes.  
 > > Are there any negative security implications to including source quench?
 > 
 > See RFC 6633 (http://tools.ietf.org/html/rfc6633) and the literature it
 > references, particularly RFC 5927 (http://tools.ietf.org/html/rfc5927).
 > TL;DR: they were a bad idea to begin with, and nobody implements them
 > anyway.

Fair enough, thanks for the refs, I'm just so out of date .. still 
chewing on the second and I have a nice fresh icmp-parameters.txt

cheers, Ian

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