Watch Logs

It is important to read logs periodically.

Here are some important logs to read:

• /var/log/messages - The main system logs or current activity logs are available.
• /var/log/auth.log - Authentication logs
• /var/log/kern.log - Kernel logs
• /var/log/cron.log - Crond logs (cron job)
• /var/log/maillog - Mail server logs
• /var/log/boot.log - System boot log
• /var/log/mysqld.log - MySQL database server log file
• /var/log/secure - Authentication log
• /var/log/ufw.log - Firewall log
• /var/log/utmp or /var/log/wtmp - Login records file.