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Date:      Thu, 01 Nov 2001 14:14:35 +0200
From:      Sheldon Hearn <sheldonh@starjuice.net>
To:        freebsd-questions@FreeBSD.org, ru@FreeBSD.org
Subject:   Re: Protocol-specific dynamic IPFW rule lifetimes? 
Message-ID:  <76269.1004616875@axl.seasidesoftware.co.za>
In-Reply-To: Your message of "Thu, 01 Nov 2001 13:49:26 %2B0200." <76018.1004615366@axl.seasidesoftware.co.za> 

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On Thu, 01 Nov 2001 13:49:26 +0200, Sheldon Hearn wrote:

> > I'm happy with the defaults for HTTP, SMTP and others.  However, I'd
> > like the dynamic rules used to service SSH, pcAnywhere and Microsoft
> > Terminal Services to live _much_ longer.
> 
> Just before people shoot the question down, I _do_ know about OpenSSH's
> ClientAliveInterval and ClientAliveCountMax.

Also, I've noticed that my SSH sessions time out after just 20 seconds
of inactivity.  Howcome they're not triggering fw.dyn_ack_lifetime,
which is the default 300?  Here are the relevant rules:

add fwd 216.123.49.33 tcp from 216.123.49.36 22 to any established
...
add allow tcp from any to 216.123.49.32/28 22 setup keep-state

Ciao,
Sheldon.

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