Passwordless SSH login
I have three systems, two running CentOS5.2, 32-bit and the third running CentOS5.2, 64-bit. I am trying to set up passwordless SSH logins between the three systems. Using SSH-KEYGEN I created a public and private rsa key on each system. I copied the public keys to a master AUTHORIZED_KEYS file and then distributed that file to all three machines in /home/<user>/.ssh/authorized_keys. The two CentOS5.2 32-bit systems can ssh into each other without having to enter a password. I can also ssh into the 32-bit CentOS systems from the 64-bit CentOS system without having to enter a password. However, when I try to ssh into the 64-bit system from either 32-bit system, I am prompted for a password. All three systems are running ssh protocol 2 and the sshd_config files are identical. SELinux is enabled, but it is enabled on all three systems. IPtables is disabled on all three systems. Any thoughts on why I keep getting prompted for a password? Thanks.