Rsyslog not logging kern messages [SOLVED]

Submitted by richb-hanover on Fri, 02/19/2021 - 16:34 Pro Licensee

Operating system: Ubuntu OS version: 20.04.1

I recently upgraded my VPS from 14.04 to 20.04, Webmin to 1.962, and Virtualmin from an ancient version to 6.14. (All at once, I know that could cause a problem. And it did.)

In the process, logging got screwed up.

  • I log certain messages from iptables ... -j LOG --log-prefix "iptables: info..."
  • I can see those messages with dmesg -x or in the System Logs > Output from dmesg page
  • Those messages never appear in files in /var/log/...

I posted more information on a StackExchange post [1], but wonder if you have any thoughts on troubleshooting this? Many thanks!

Rich

[1] https://unix.stackexchange.com/questions/634781/rsyslog-not-logging-dmes...

Status: 
Active
Virtualmin version: 
6.14
Webmin version: 
1.962

Comments

Submitted by richb-hanover on Sat, 02/27/2021 - 07:18 Pro Licensee

Title: Rsyslog not logging dmesg messages ยป Rsyslog not logging kern messages [SOLVED]

Submitted by richb-hanover on Sat, 02/27/2021 - 07:19 Pro Licensee

Update: It's working now. While troubleshooting this, I made a huge number of changes, but I believe the problem was that the line below was commented out in /etc/rsyslog.conf Uncommenting it causes the log entries to appear as expected.

#module(load="imklog" permitnonkernelfacility="on")

For a much longer discussion of what I learned, check my StackExchange post