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}}