ssh登录提示 The authenticity of host ‘192.168.20.4 (192.168.xxx.xxx)‘ can‘t be established. 解决方案

ssh远程提示The authenticity of host '192.168.20.4 (192.168.20.4)' can't be established.

 修改/etc/ssh/ssh_config文件的配置，以后则不会再出现此问题

最后面添加：

StrictHostKeyChecking no

UserKnownHostsFile /dev/null