Shulou(Shulou.com)06/01 Report--

In this issue, the editor will bring you about the log logs in CentOS. The article is rich in content and analyzes and narrates it from a professional point of view. I hope you can get something after reading this article.

1) / var/log/secure: a file that records the data accessed by the login system

For example, pop3,ssh,telnet,ftp will be recorded here.

2) / ar/log/wtmp: record the log-in information record, which is encoded, so it must be parsed with last

3) / var/log/message:jihu all errors in the boot system will be recorded here

4) / var/log.boot.log: record the startup or shutdown information displayed by some services started by boot or shutdown

5) / var/log/maillog: record the access and flow of mail

6) / var/log/cron: used to record the content of the crontab service

7) / var/log/httpd,/var/log/mysqld.log, etc., to record the records of several different network services

8) / var/log/acpid, ACPI-Advanced Configuration and Power Interface, represents the advanced configuration and power management interface.

The following d stands for deamon. Acpid is also called the ACPI event daemon. That is, the acpi message process. A service program that controls, acquires, and manages the status of an acpi.

9) / var/run/utmp records users who are logged in now

10) / var/log/lastlog records each user's last login information

11) / var/log/btmp logs incorrect login attempts

12) / var/log/dmesg kernel log

13) processing information of / var/log/cpus CPU

14) / var/log/syslog event logging Monitor Log

15) / var/log/auth.log user authentication log

16) / var/log/daemon.log system process log

17) / var/log/mail.err email error message

18) / var/log/mail.info email message

19) / var/log/mail.warn email warning message

20) / information generated by the var/log/daemon.log system monitor

21) / information generated by the var/log/kern kernel

22) Information generated by the spooling system of the var/log/lpr line printer

These are the CentOS logs shared by the editor. If you happen to have similar doubts, you might as well refer to the above analysis to understand. If you want to know more about it, you are welcome to follow the industry information channel.

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