Errore su connessione in ssh

[Giovanni trovato <g.trovato@kelinformatica.it>]

Salve, il mio problema è questo:
quando mi connetto ad un client in ssh

#ssh root@192.168.16.105

ho questo errore:

@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@    WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!     @
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!
Someone could be eavesdropping on you right now (man-in-the-middle attack)!
It is also possible that the RSA host key has just been changed.
The fingerprint for the RSA key sent by the remote host is
03:36:f6:a3:dd:a2:a4:c2:a2:a1:54:da:e0:b4:0c:6f.
Please contact your system administrator.
Add correct host key in /root/.ssh/known_hosts to get rid of this message.
Offending key in /root/.ssh/known_hosts:1
RSA host key for 192.168.16.105 has changed and you have requested 
strict checking.
Host key verification failed.
#############################

Come posso risolvere?

Grazie in anticipo

Giovanni