On Thu, Aug 24, 2000 at 04:48:52PM +1000, Howard Lowndes wrote:
> ssh version 1, ssh version 2, openssh.
> 
> What are ppls opinions on which one should be used, and more
> importantly, why?

The author(s) of ssh recently changed the licence for v1 to be similar
to that of v2 -- basically no commercial use without money being pushed
in their direction. So, while not an outstanding technical reason, this
is certainly *a* reason for preferring openssh -- it's Open Source.

Apologies for not having a direct reference to hand about the licence
change, but this modem link is painfully slow at the moment, so web
browsing is not an option. :-(

> I have noticed that there is an incompatibility between ssh 1.2.27 and
> openssh (the old signal 11 that I queried the other day - and it is
> definitely not hardware as it occurred on two separate pairs of machines)
> 
> Could that incompatability be because I have built ssh 1.2.27 from source
> without RSA, but the openssh *may* be built _with_ RSA?

I would suspect that this is not the reason. Openssh is meant to be
compatibale with ssh1 and ssh2 and if the sshd (or client) you were
connecting to did not support some sort of encryptions requiring RSA
then it would use an alternative encryption method.

What happens when you run in verbose mode (ssh -v)? And which way are
you connecting (openssh client -> sshd, or ssh client -> opensshd)?

Cheers,
Malcolm

-- 
Malcolm Tredinnick            email: [EMAIL PROTECTED]
CommSecure Pty Ltd

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