Bad configuration option: gssapikeyexchange

MAC升级后，用iterm ssh远程登录公司服务器报错，如标题

解决方法：

For Unix neophytes here are steps to edit the ssh_config file using the vi editor on Mac:

1、sudo vi /etc/ssh/ssh_config

2、Press i key for vi editor insert mode.

3、Use arrow keys to navigate to lines you want to delete or comment.

      For example, to comment the offending line in an ssh_config script:

      # GSSAPIKeyExchange yes