RSA host key for 188.166.XXX.XXX has changed and you have requested strict checking. Host key verification failed.
So, I’v rebuild a droplet on DigitalOcean, and logically, when I tried to ssh it, SSH Keys were different…. Easy so solve it…
On a Mac OSX, on console, lets change to root
Lets edit known_hosts
Remove the entry of the respective host/ip.
Save and exit nano, exit root.. and ssh it! 🙂