配置远程服务器的别名

cd .ssh/
vi config

#指定别名
Host mylinux2
#远程服务器IP
	HostName 10.12.45.12
#远程登录的用户名
	User root
#ssh端口
	Port 22

[[email protected] ~]# ssh mylinux2
Warning: Permanently added ‘10.12.45.12’ (ECDSA) to the list of known hosts.
[email protected]’s password:

配置成功，再配置互信免密登录就可以直接ssh 别名直接登录了