When configured for logging, the Palo Alto Networks firewall records configuration changes, system events, security threats, traffic flows, and alarms generated by the device.
The following logs can be cleared on the Palo Alto Networks device:
To clear the logs through the WebGUI.
To clear the logs from the CLI, enter the following command:
> clear log <log name>
admin@PA-VM> clear log
> acc ACC database
> alarm Alarm logs
> auth Authentication logs
> config Configuration logs
> gtp Tunnel and GTP logs
> hipmatch Hipmatch database
> iptag Iptag logs
> sctp SCTP logs
> system System logs
> threat Threat logs
> traffic Traffic logs
> userid User-ID logs
Note: Clearing the threat log also clears the URL log.
admin@PA-VM> debug software restart process management-server
If that does not restore the logs, please contact support.