linux之ssh连接时提示“The authenticity of host xx can’t be established”

描述:

集群已经配置了ssh免密钥登陆,然后出现“The authenticity of host xx can’t be established”,输入yes后可以正常操作。

解决办法:

修改/etc/ssh/ssh_config:

StrictHostKeyChecking no
UserKnownHostsFile /dev/null

重启:

/etc/rc.d/init.d/sshd restart