>>>>> "Juergen" == Juergen Schoenwaelder <[EMAIL PROTECTED]> writes:
Juergen> 2) It is important to talk about ssh and to not reduce the problem
to
Juergen> just TCP. As far as I understand ssh, authentication is not
Juergen> symmetric because ssh has a clear buildin client/server role
Juergen> (servers authenticated via host keys while clients are
Juergen> authenticated via passwords or publickey mechanisms).
Juergen> So in the context of ssh, it does have quite some impact who
Juergen> establishes the transport connection. (Unless there is a "turn"
Juergen> feature in _ssh_. I am not aware of such a mechanism, but I am
Juergen> happy to learn.)
Authentication is sometimes symmetric; it is not in the case of
passwords. For authentication methods like public key or GSS, it is reasonably
symmetric.
--Sam
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