geelyMacBook-Pro:~ imooc$ ping 120.78.229.212
PING 120.78.229.212 (120.78.229.212): 56 data bytes
64 bytes from 120.78.229.212: icmp_seq=0 ttl=49 time=44.818 ms
64 bytes from 120.78.229.212: icmp_seq=1 ttl=49 time=44.814 ms
64 bytes from 120.78.229.212: icmp_seq=2 ttl=49 time=45.348 ms
^C
--- 120.78.229.212 ping statistics ---
3 packets transmitted, 3 packets received, 0.0% packet loss
round-trip min/avg/max/stddev = 44.814/44.993/45.348/0.251 ms
geelyMacBook-Pro:~ imooc$ ssh root@120.78.229.212
The authenticity of host '120.78.229.212 (120.78.229.212)' can't be established.
RSA key fingerprint is SHA256:IFGlWNKPfr5rSD9BJijn7pXGFE74AIKexqw06td30hU.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added '120.78.229.212' (RSA) to the list of known hosts.
root@120.78.229.212's password: