where are linux logs

Log files in Linux systems are usually saved in the /var/log directory.

The following are several important log files:

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/var/log/messages: including overall system information, It also contains logs during system startup.

/var/log/syslog: It is different from the /etc/log/messages log file. It only records warning information, which is often information about system problems.

/var/log/user.log: Log that records user information of all levels. /var/log/auth.log: Contains system authorization information, including user login and permission mechanisms used, etc.

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