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On Mon, Feb 05, 2007 at 05:51:38PM -0800, Arone Silimantia wrote:
>=20
> I am going to be replacing system X with system Y (which is much
> faster, newer).
>
> I will load up the new system from scratch, and then just copy over
> the user data from the old system. Then I will turn off the old
> system for good, and set the IP and hostname of the new system to
> match the old one.
>
> Easy. Except everyones ssh connections will complain loudly about
> potential MITM attacks, etc. ...
>
> So, am I correct that I can just tar up /etc/ssh on the old system and
> use it to overwrite /etc/ssh on the new system, and that's that ? No
> warning message or other problems ?
Yes. Actually, the files you need are "/etc/ssh/*_key /etc/ssh/*_key.pub".
The others may contain settings you want to move, but don't effect the
machine's ssh identity.
> ALSO, am I correct that if I copy over their home directories that
> contain their ~/.ssh/authorized_keys that those will continue to work
> just fine even though they are on a new server ?
Yes, they contain no knowledge of the server they are on.
-- Brooks
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