Disable Password from Server

• sudo nano /etc/ssh/sshd_config
• Find PasswordAuthentication and set that to no
• Turn on PubkeyAuthentication yes
• Turn off ChallengeResponseAuthentication no
• Reload the SSH service sudo systemctl reload sshd
• Test new user in a new tab to prevent getting locked out

Copy file/folder from server to server via ssh

• scp -r from_server to_server

scp -r [email protected]:/var/www/file.zip [email protected]:/var/www/

• if you want to copy file from server to your pc you can replace the distination

scp -r [email protected]:/var/www/file.zip .