Configuring a console for debugging using Netconsole
If we want to capture a kernel panic, it becomes hard once the system has been rebooted as there are no logs created for this. To solve this issue, we can use Netconsole.
A kernel module helps by logging kernel print messages over UDP. This becomes helpful with debugging problems when logging on to the disk fails.
Getting ready
Before starting the configuration of Netconsole, we need to know the MAC address of the system where the UDP packets will be sent. This system is referred to as a receiver, and it may be in the same subnet or a different one. These two cases are described here:
- The first case is when the receiver is in the same subnet.
- The IP address of the receiver in this example is
192.168.1.4 ...
Get Practical Linux Security Cookbook now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
