Logging
From Hackepedia
Logging is meant that some data is passed to the syslog daemon for writing down data for later inspection.
It may be helpful to create a logfile that collects all information for all facilities and levels. On an opensuse system this looks like so:
# # enable this, if you want to keep all messages # in one file *.* -/var/log/all
When viewing this file then one can use tools like grep to filter a keyword.