ssh-keygen - authentication key generation

Client side :

% ssh-keygen -t rsa
[enter]
[enter]
[enter]
% cat << END > ~/.ssh/config
Protocol 1,2
END


Server side :

# Copy and paste ~/.ssh/identity.pub on client
# to ~/.ssh/authorized_keys on server
# /etc/sshd_config 에 다음의 항이 선택되어져 있는지 확인
PubkeyAuthentication yes
AuthorizedKeysFile .ssh/authorized_keys