How to disable root access from ssh

By default, usually ssh allow us to login as root. If we are concerned a lot about security, we'll want to disable root access from ssh. Belows are steps to disable direct root access from ssh:

1. login to your server, and gain root access (by sudo or su - )


2. Edit ssh configuration file. Usually the file is located at /etc/ssh/sshd_config


3. Find the line: PermitRootLogin yes, then replace the line into: PermitRootLogin no


4. If you'd like to only enable protocol version 2, find the line: Protocol 2,1 then replace it into: Protocol 2


5. Save the files


6. restart ssh:

   /etc/rc.d/init.d/sshd restart

That's all :)