In most of the cases we need to login our server using 2 steps authentication by disabling direct root login.

Below are the steps which we can used.

1. adduser support
2. passwd support
>> create strong password for support user as per request.

Please keep support password
3. vi /etc/group

Make sure admin user wheel settings

1. Copy and paste this line to edit the file for SSH logins
# vi /etc/ssh/sshd_config

2. check for the next line
Protocol 2, 1

3. Uncomment it and change it to look like
Protocol 2

4. Next, find the below line and change “Yes” to “No” (This will disable direct root login)
PermitRootLogin yes

5. Save the file and exit

7. Now you can restart SSH
# /etc/rc.d/init.d/sshd restart


Try to login then using user support

ssh support@ That is all.