Tech Tips

The root user is enabled by default on most Linux servers, and hackers frequently attempt to get access to it by guessing its password. As a result, it’s a good idea to turn off the root account. First, make sure you have an admin user account so you can use the sudo special privileges access command to run root-level commands later. The Enable root login SSH can then be safely disabled.

$ vi /etc/ssh/sshd_config

PermitRootLogin no

Also, instead of using a password, you can use a safe mechanism like Enable root login SSH public-private key authentication.

$ vi /etc/ssh/sshd_config

PasswordAuthentication no

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