Re: iptables log target logs everything to tty*. Why?
On Fri, 2006-06-23 at 00:18 +0200, Erik Persson wrote:
> Hey!
>
> I'm running a debian sarge as a router for a network, and I'm using
> iptables. I need to log certain stuff from iptables, and I thus have
> rules like:
> ${PROG} -A FORWARD -i eth1 -o eth0 -p tcp --dport 135 -m limit
> --limit 1/s -j LOG --log-prefix "Blaster portscan "
>
> This however has the not so desirable side effect of writing every log
> message from iptables to all tty:s as well as to /var/log/messages. And
> I can tell you it is very annoying!
>
> First I just thought it had something to do with syslogd and checked
> syslogd.conf. I could not find any rule that would generate this
> behavior, but to be on the safe side I stopped syslogd.
> The messages kept on coming.
>
> Then I thought it might be klogd and I killed it off as well. The
> messages kept on coming on the ttys. Then I tried klogd -c 0 whithout
> any luck.
>
> Does anyone know how to get rid of this other than just removing the log
> rules from iptables?
>
> /Erik Persson.
>
>
Another option is to make the action in the rules ULOG and change
--log-prefix to --ulog-prefix. This needs the ulog-daemon for logging
though, but it's available on debian. Install it and all your messages
will be sent to ulog.
Philippe De Ryck
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