/var/

/var/log/
/var/spool/cron/crontabs/
/var/lib/

/var/lib/postgresql/10/main

/var/lib/mysql

See also

• Linux Logging: logger systemd-cat journalctl, syslog, rsyslogd logrotate, sshd logs, Logwatch, logcheck, Container logging, Journalctl logs, journald.conf, Docker logs, ts