We have to be honest, logs are often an after thought to most developers. Many logs are pretty cryptic unless you can look at the code and see what is going on. In this section, we will share what we think of a specific log: - the cryptic ones, the fun ones and some of the ones we see more often.
type=USER_START msg=audit(1719517182.019:16496658): pid=12425 uid=0 auid=0 ses=2317238 msg='op=PAM:session_open grantors=pam_loginuid,pam_keyinit,pam_limits,pam_systemd acct='root' exe='/usr/sbin/crond' hostname=? addr=? terminal=cron res=success'ID: audit-log-cron
For: Linux audit log
Meaning: This log happens whenever a user session is started. This log often comes after a type=LOGIN or type=USER_LOGIN audit event. In this case, it is from cron and will be triggered whenever cron runs.
What to do: None. Informational only.