SSH login without password
CS/Linux 2011. 9. 8. 13:29원문 : http://linuxproblem.org/art_9.html
a@A:~> ssh-keygen -t rsa
a@A:~> ssh b@B mkdir -p .ssh
a@A:~> cat .ssh/id_rsa.pub | ssh b@B 'cat >> .ssh/authorized_keys'