CentOS Enable Sudo method

CentOS does not enable sudo by default, and you can log on to the server directly as a super administrator. Ubuntu is doing a good job in this area, and it is recommended that sudo be enabled in order to be safe and reduce the damage caused by misoperation.

1. Add sudo users
Execute Visudo command to find:

Root all= (All)

Add the following:

CentOS all= (All)

2, prohibit the root user login
Edit/etc/ssh/sshd_config
Will

Permitrootlogin Yes

To

Permitrootlogin No

3, restart sshd:

Service sshd Reload