Re: Cannot authenticate from RedHat 7.1
From: Richard Silverman (res@des.jhy.us.ml.com)Date: 12/12/01
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From: Richard Silverman <res@des.jhy.us.ml.com> Date: 12 Dec 2001 16:11:12 -0500
>>>>> "JK" == Jacob Kjelstrup <jacob@iicnet.com> writes:
JK> I think the issue is that I'm going through the AT&T Broadband
JK> network and sshd is trying to do a reverse DNS lookup on the IP
JK> address and not finding anything. Apparently this additional
JK> check only takes place for protocol 1 and not for protocol 2. Is
JK> this true or am I confused?
Neither protocol requires DNS lookups; some implementations may be
configured to. SSH2 can have RequireReverseMapping set -- however, it
doesn't give the behavior you're seeing; you would just get "permission
denied."
JK> In any event, by forcing the protocol to 1 I was able to use both
JK> password authentication and public key authentication.
I would troubleshoot this further and get it fixed -- protocol 1 has known
security weaknesses and is deprecated.
-- Richard Silverman slade@shore.net
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