DigitalOcean Ubuntu 14.04 User SSH Setup

ssh root@ip
adduser username
gpasswd -a username sudo
ssh-keygen
cat keyfilename.pub
Copy Public Key to Clipboard
su username
mkdir .ssh
sudo chmod 700 .ssh
nano /.ssh/authorized_keys/
Paste Public Key from Clipboard
chmod 600 /.ssh/authorized_keys/
exit
Return to Root User
nano /etc/ssh/sshd_config/
PermitRootLogin no
service ssh restart
exit
ssh username@ip