I am trying to use RSA authentication between different machines, but
I'm running into trouble between machines running different versions of
ssh.
Machine A is running unstable with OpenSSH 3.0.2p1, and it is trying to
connect to machine B running stable, with a compiled from source ssh,
version 3.2.3p1.
On machine A, I run ssh-keygen, and generate an identity and
identity.pub. I copy identity.pub to ~/.ssh/authorized_keys on Machine
B, but it still prompts for the system password, not my keyphrase. I
notice that B's more recent ssh-keygen insists I use the -t flag to
specificy key type, so I then generate another key on machine A with
'ssh-keygen -t rsa', creating id_rsa and id_rsa.pub, and proceed to copy
id_rsa.pub to Machine B's authorized_keys file. Still no luck, same
regular password prompt.
To convince myself that I'm not doing something completely wrong, I
generate keys on Machine B ('ssh-keygen -t rsa'), and copy the public
key to Machine C (virtually identical machine running same version of
OpenSSH) and the key authentication works as expected. :-\
Any ideas as to how to make the different versions understand each
other?
Thanks,
Rob
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