NetConsole

To set up a network console, add the following command to /etc/rc.d/rc.local:

/sbin/modprobe netconsole netconsole=@/eth0,12345@10.0.0.1/00:E0:81:2B:0C:C1

Where the mac address is the destination nc listener and 12345 is the port number for listenning.

To run the log client, issue the command:

nc -dul 12345

on the client machine, 12345 is the port number from above.

It also helps to disable sync logging by changing /etc/syslog.conf from:

*.info;mail.none;authpriv.none;cron.none                /var/log/messages

to

*.info;mail.none;authpriv.none;cron.none                -/var/log/messages

and to add

echo 9 > /proc/sysrq-trigger

to /etc/rc.d/rc.local