From owner-freebsd-questions@FreeBSD.ORG  Sat Nov 29 19:39:47 2008
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Date: Sat, 29 Nov 2008 20:39:47 +0100
From: Jos Chrispijn <kernel@webrz.net>
Organization: Koudekerke (NL)
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Subject: Temporarily blocking ports
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Can someone hint me how I can block ports for let's say 30 minutes if 
someone repeatedly tries to do a SSH login?
I use ipfw as firewall...

regards,
Jos Chrispijn