11/16   Do we want to copy over the old ssh host key?  Or is it a feature?
        \_ The host key has not changed.  ssh has.  We're now using OpenSSH.
                \_ Oh course the host key has been changed. Otherwise I
                   wouldn't get this when trying to login:
                   \_ Due to a bug, old ssh created a 1023bit key instead of
                      a 1024 bit key.  It advertized it as 1024bits.  OpenSSH
                      tells the truth that it's 1023, which makes your ssh
                      client unhappy.
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@       WARNING: HOST IDENTIFICATION HAS CHANGED!         @
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!
                                               \_ ooh!
Someone could be eavesdropping on you right now (man-in-the-middle attack)!
.....
        \_ you can fix this by editing your ~/.ssh/known_hosts file. next to
           the csua key, change the length from 1024 to 1023.