What is system logs location in Linux?

In Linux, system logs are typically located in the /var/log directory. This directory contains a variety of log files that record system activity, including kernel messages, system boot logs, and application logs. Some important log files found in this directory include:

  • /var/log/syslog - General system activity logs.
  • /var/log/auth.log - Authentication logs (for login attempts and sudo commands).
  • /var/log/kern.log - Kernel messages.
  • /var/log/boot.log - Boot process logs.
  • /var/log/dmesg - Kernel ring buffer information.
  • /var/log/messages - General system messages (may vary by distribution).

Accessing these logs can help administrators diagnose issues, monitor system performance, and ensure security compliance.


Linux system logs /var/log directory authentication logs kernel messages system activity logs