How to Setup SSH Key in InterServer VPS – Secure your VPS Server

Here are the commands that are required to run to secure VPS server on InterServer. Run these commands one by one.

mkdir -p ~/.ssh

chmod 700 ~/.ssh

nano ~/.ssh/authorized_keys

chmod 600 ~/.ssh/authorized_keys

nano /etc/ssh/sshd_config

Remove # from PubkeyAuthentication.

PubkeyAuthentication yes

Make passwordAuthentication from YES to NO.

PasswordAuthentication no

systemctl restart ssh