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From: ArkanoiD <ark@paranoid.convey.ru>
Message-Id: <199709041217.QAA00831@paranoid.convey.ru>
Subject: Re: log connection attempts?
To: phk@critter.freebsd.dk (Poul-Henning Kamp)
Date: Thu, 4 Sep 1997 16:17:51 +0400 (MSD)
Cc: firewalls@greatcircle.com, freebsd-security@freebsd.org,
        freebsd-hackers@freebsd.org
In-Reply-To: <4926.873280349@critter.freebsd.dk> from "Poul-Henning Kamp" at Sep 3, 97 11:52:29 am
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nuqneH,

> 
> In message <203609030840.MAA14571@paranoid.convey.ru>, ArkanoiD writes:
> >nuqneH,
> >
> >Did anyone try to patch the kernel to log connection attempts for ports
> >(tcp and maybe udp) where no program accepts connection? (2.1.7)
> 
> Set these two sysctl variables to non-zero:
> 	net.inet.tcp.log_in_vain: 0
> 	net.inet.udp.log_in_vain: 0
> 
fourth level name log_in_vain in net.inet.tcp.log_in_vain is invalid

..and i don't remember smth like that when browsing the sources.


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