Monitor login and logout events. The parameters below track changes to files associated with login/logout events. The file /var/log/faillog tracks failed events from login. The file /var/log/lastlog maintain records of the last time a user successfully logged in. The /var/run/failock directory maintains records of login failures via the pam_faillock module. Monitoring login/logout events could provide a system administrator with information associated with brute force attacks against user logins.