Setting up SSH key authentication on Unix

setting-up-ssh-unix.sh

# generate ssh key
ssh-keygen -t dsa 
# (Don’t enter a passphrase unless you want to type it every time you want to use the key)

# set permissions
chmod 700 ~/.ssh
chmod 600 ~/.ssh/id_dsa
chmod 644 ~/.ssh/id_dsa.pub


# if exist
cat ~/.ssh/id_rsa.pub | ssh YOUR_USER@SERVER_IP "cat - >> ~/.ssh/authorized_keys"
# if do not exist
scp ~/.ssh/id_rsa.pub YOUR_USER@SERVER_IP:~/.ssh/authorized_keys

# maybe need connect to server and set right permissions to authorized_keys
# chmod 0600 ~/.ssh/authorized_keys

# try connect to server
ssh YOUR_USER@SERVER_IP