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Date:      Fri, 22 Feb 2002 08:37:26 -0800
From:      Michael Sierchio <kudzu@tenebras.com>
To:        FreeBSD user <freebsd@XtremeDev.com>
Cc:        freebsd-ipfw@freebsd.org
Subject:   Re: ipfw, dummynet, weights, and ssh?
Message-ID:  <3C7673C6.9060706@tenebras.com>
References:  <20020222031809.M37938-100000@Amber.XtremeDev.com>

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FreeBSD user wrote:
> I'm trying to decipher ipfw syntax related to dummynet, and I'm not having
> much luck. Basically all I want to do is give priority to all ssh
> connections, both outbound and inbound. If the line is saturated I should
> still be able to ssh in and out of my server, hopefully without too much
> lag. Is this possible with ipfw/dummynet's WF2Q+ policies? And if so, any
> examples you can provide would greatly help. Thanks in advance.

Dummynet doesn't provide dynamic bandwidth limiting based on load
or traffic.  You can use a clever combination of bandwidth-limiting
pipes and masks to ensure that no one connection uses more that X%
of your (theoretical) bw.

You could make all non-ssh connections go through a bw-limiting
pipe (75-85%).



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