Erro no SSH

De uma máquina com Conectiva 7.0 estou tentando fazer ssh numa outra com Conectiva 8.0, tudo configurado certinho, como em outros servidores que já configurei. É algum problema de versão??

[root@proxy suporte]# ssh 192.168.1.1 -l suporte
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@ 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 DSA host key has just been changed.
The fingerprint for the DSA key sent by the remote host is
51:b1:3b:3c:3f:bd:3c:c7:40:75:01:e3:d9:de:78:b5.
Please contact your system administrator.
Add correct host key in /root/.ssh/known_hosts2 to get rid of this message.
Offending key in /root/.ssh/known_hosts2:3
DSA host key for 192.168.1.1 has changed and you have requested strict checking.