I'm reposting this because apparently my problem is not solved.
I have 2 linux computers. I am trying to ssh from one to the other w/o passwords. I can ssh from computer A to computer C, but not from A to B. I can't see where the difference is. On computer A, I ran ssh-keygen which created ~/.ssh/id_rsa.pub.
I copied the contents of that id_rsa.pub file. Then, logged into computer B and appended the contents of A's id_rsa.pub to B's ~/.ssh/authorized_keys. I did the same with computer C.
When ssh'ing from A to C I get logged in, no password prompt. When ssh'ing from A to B it prompts me for a password. What am I doing wrong?