How to view system log files in CentOS?

To view the system log files, you can use the following command:

1. Viewing system log files:

cat /var/log/messages

1. View the starting log file:

cat /var/log/boot.log

1. View the security log files.

cat /var/log/secure

1. View the kernel log file:

dmesg | less

1. View the log files for a specific service (using the sshd service as an example):

cat /var/log/secure | grep sshd

The above commands can be used to view various log files in the system, assisting in troubleshooting system issues and understanding the system’s operation status.