Linux Logs/Backlog

when troubleshooting, be sure to develop the habit of looking at the log, the system is the core of a log/var/log/messages.
#cat/etc/logrotate.conf This is a log-cut profile.
Kill-hup is a new configuration file from the freshman.

Killall process name, kill service. or killall-9 process name.

#tail/var/log/messages Look at some of the system kernel logs, the longest view of a log.
#ls/var/log/wtmp This log is to view the log login history, with last view, can not use cat.
# Ls/var/log/btmp This log is to view the history of invalid logins, viewed with LASTB.
#ls/var/log/maillog This log is a log that is related to the message.
#/var/log/secure Verify that the relevant normal or failed logs are recorded in this file,
#/VAR/LOG/DMESG is a number of hardware-related logs during system 1 startup.
# DMESG View some real-time updates to the log.

Linux Logs/Backlog