logwatch
Summarizes many different logs for common services (e.g. apache, pam_unix, sshd, etc.) in a single report. More information: https://manned.org/logwatch.
- Analyze logs for a range of dates at a certain level of detail:
logwatch --range
yesterday|today|all|help --detail
low|medium|others'
- Restrict report to only include information for a selected service:
logwatch --range
all --service
apache|pam_unix|etc