Fix "the ECDSA host key for 'your server' differs from the key for the IP address 'the ip'"

Cause： the change of remote git address
Platform：MAC

Warning Info：

Warning: the ECDSA host key for 'xx.xxx.com' differs from the key for the IP address 'xx.xx.xx.xx'
Offending key for IP in /Users/username/.ssh/known_hosts2:2 

Solution：

1) cd ~/.ssh
2) vim config
3) Then edit this config file：

Host xx.xxx.com
    StrictHostKeyChecking no
    UserKnownHostsFile=/dev/null
    LogLevel=quiet

4) :wq

Reference：

• https://serverfault.com/questions/423019/known-hosts-ecdsa-host-key-multiple-domains-on-one-ip
• http://blog.csdn.net/zhangp80/article/details/6889568
• http://stackoverflow.com/questions/9299651/git-says-warning-permanently-added-to-the-list-of-known-hosts

In summary：

This solution really save my day!
Also you can try this way : “ssh-keygen -R ”
Windows platform may refer to this workaround as well.