Ssh removes the authentication host for the first time
New hosts establish ssh connections all the time
The authenticity of host '222.185.x.x (222.185.x.x)' can't be established.RSA key fingerprint is 83:0c:88:96:a5:60:ba:6f:6b:6e:cb:16:16:c6:4c:23.Are you sure you want to continue connecting (yes/no)?
You need to enter yes to continue. Specify the parameter StrictHostKeyChecking value of no to solve the problem.
Ssh-o StrictHostKeyChecking=no-I RSA_key_file root@222.185.x.x
Solution once and for all, modify the configuration document
Modify the configuration of the / etc/ssh/ssh_config file, and this problem will not occur in the future
Add at the end:
StrictHostKeyChecking noUserKnownHostsFile / dev/null
Done. Done.