Disable root login and add new user under Linux

One, add and root permissions of the same user

1.

AddUser Admin

passwd Admin (change password)

Then enter the password (the password is easy to pass)

You are prompted to enter a confirmation password and then enter it again. OK to add success.

2. Modify the/etc/sudoers file, locate the following line, and add a line below root as follows:

Vim/etc/sudoers
# allow ROOT to run any commands anywhereroot all    =(All All = ( all

Second, prohibit root telnet

Need to edit/etc/ssh/sshd_config.

Vim/etc/ssh/sshd_config found Permitrootlogin.

Change to Permitrootlogin no

Restart Service sshd Restart

Conclusion:

This will prohibit the root user login with admin login. To be so complicated is to be safe.

You only prohibit the root user login, no other users, first logged in with another user, in Su root to cut back the root user

Switch to the root user and lose the password

Disable root login and add new user under Linux