On Sat, Sep 23, 2000 at 06:50:08PM +0000, Tomasz Luchowski wrote:
> Hello,
> 
> On FreeBSD there is log_in_vain feature.
> 
> zuntum@zunix:~> grep vain /etc/rc.conf
> log_in_vain="YES"               # YES to log connects to ports w/o listeners.
> 
> zuntum@zunix:~> tail -1 /var/log/all.log
> Sep 23 16:54:49 zunix /kernel: Connection attempt to TCP 10.0.0.1:80 from 10.0.0.2:1529
> 
> Is something simmilar available on NetBSD? I'd like to log connections to ports
> w/o listeners.

Yes' it's controlled by the net.inet.tcp.log_refused sysctl:
sysctl -w net.inet.tcp.log_refused=1

--
Manuel Bouyer, LIP6, Universite Paris VI.           Manuel.Bouyer@lip6.fr
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