Date: Tue, 12 Sep 2006 22:49:07 +0300 From: Odhiambo Washington <wash@wananchi.com> To: freebsd-questions@freebsd.org Subject: ipfw - bandwidth throttling (sanity check!) Message-ID: <20060912194907.GA44560@ns2.wananchi.com>
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Hello Security guy ;)
I have tried very hard to understand ipfw just for the purpose of
bandwidth throttling for smtp service.
Basically, I want to throttle the bandwidth used by my SMTP
server outbound to _anyone_ else except my ip blocks.
My Server is 1.2.3.4 and my ip blocks are a.b.c.d/19 and
e.f.g.h/20
Are the following rules sane enough?
ipfw pipe 1 config bw 256Kbit/s
ipfw add pipe 1 tcp from 1.2.3.4 to not a.b.c.d/19 25
ipfw add pipe 1 tcp from 1.2.3.4 to not e.f.g.h/20 25
Any smtp traffic not to these netblocks should be throttled.
By that, I am thinking it will match everything smtp outbound
only, not inbound.
Thank you for your time.
-Wash
http://www.netmeister.org/news/learn2quote.html
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