Troubleshooting Log Files
The only real unique entity for logging on Cumulus RMP compared to any
other Linux distribution is
switchd.log, which logs the HAL (hardware
abstraction layer) from hardware like the Broadcom ASIC.
This guide on
is amazing for understanding how
/var/log works. The green highlighted
rows below are the most important logs and usually looked at first when
Information from the update-alternatives are logged into this log file.
Contains log information stored by the Linux audit daemon,
Contains information that is logged when the system boots.
This file contains information about failed login attempts. Use the
Contains information logged by the various background daemons that run on the system.
Contains kernel ring buffer information. When the system boots up, it prints number of messages on the screen that display information about the hardware devices that the kernel detects during boot process. These messages are available in the kernel ring buffer and whenever a new message arrives, the old message gets overwritten. You can also view the content of this file using the
Contains information that is logged when a package is installed or removed using the
Contains failed user login attempts. Use the
Mail server logs.
General messages and system related information.
Logs for network configuration protocol.
The HAL log for Cumulus RMP.
The main system log, which logs everything except auth-related messages.
Login records file.