在.ssh/config（或者/etc/ssh/ssh_config）中配置：
Host xxxxx HostName xxxx User xxxx Port 2222 IdentityFile ~/.ssh/id_rsa StrictHostKeyChecking no UserKnownHostsFile /dev/null
Mac 连接ssh 需要配置下面的信息
原文：https://www.cnblogs.com/securitybob/p/14866389.html
