If you are using "ssh" with rsa you wiil need to copy your
"id_rsa.pub" to "authorized_keys"
i.e: to machine A execute commands on machine B without asking "password" after generating "rsa" keys on both hosts copy "id_rsa.pub" to "authorized_keys" on machine B, also you can use for testing "ssh" with "-v" flag, very usefull for debuging problems.
Hope it helps.
Carlos Almeida.