Which log file should I check?
So many file here:
dir /var/discourse/shared/standalone/log/var-log
alternatives.log auth.log.4.gz dpkg.log.3.gz kern.log nginx syslog.3.gz
alternatives.log.1 cron.log dpkg.log.4.gz mail.log postgres syslog.4.gz
apt dpkg.log dpkg.log.5.gz messages postgresql syslog.6.gz
auth.log dpkg.log.1 dpkg.log.6.gz messages.1 redis syslog.7.gz
auth.log.1 dpkg.log.10.gz dpkg.log.7.gz messages.2.gz syslog unattended-upgrades
auth.log.2.gz dpkg.log.11.gz dpkg.log.8.gz messages.3.gz syslog.1 user.log
auth.log.3.gz dpkg.log.2.gz dpkg.log.9.gz messages.4.gz syslog.2.gz