In a linux system it is a problem when anyone trying to login as root from a remote terminal. There is an easy way to disable a person to login into system using a remote terminal as root.
1. login to the system
2.open terminal
3. su – or sudo
4 vim /etc/ssh/sshd_config
or open the file sshd_config in the /etc/sshd directory
5 .find line PermitRootLogin yes
change it to PermitRootLogin no
6 . Restart the service
/etc/init.d/sshd restart
this will ensure a little more security to your server .
Nice !!
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