After the upgrade and reboot I notice my ELK server did not get any new records. I stopped and started the syslog-ng service and still nothing. Did tcpdump on the target server and do not see anything for the port I am sending udp log packets on. Then did tcpdump on the opnsense server (tcpdump -Q out udp port 5140) No traffic is going to the ELK server.
I also have Sensi installed with remote ELK (same elk cluster) and it is still fine (TCP port 9200).
Any logs or setting that may help troubleshooting?
There were updates to syslog-ng so you should take a look at System: Settings: Logging / targets and verify that everything is configured correctly.
From x to 21.1.3. What was x? :)
Cheers,
Franco
@Franco, from 21.1.1 to 21.1.3.
Resolved - deleted the existing target and created a new one.