this does not map back to the address - POSSIBLE BREAK-IN ATTEMPT!

CentOS系统ssh连接远程服务器，报警信息 Address X.X.X.X maps to localhost, but this does not map back to the address - POSSIBLE BREAK-IN ATTEMPT! 如下所示:
[root@chenhp ~]# ssh root@192.168.0.203
Address 192.168.0.203 maps to localhost, but this does not map back to the address - POSSIBLE BREAK-IN ATTEMPT!
root@192.168.0.203's password:
Last login: Thu Feb 21 03:01:49 2013 from desktop100.example.com

解决方法：修改本机ssh_config文件
客户端进行如下修改：
[root@chenhp ~]# echo "GSSAPIAuthentication no" >> ~/.ssh/config

服务端进行如下修改：
[root@192.168.0.203 ~]# vim /etc/ssh/ssh_config
GSSAPIAuthentication no
然后重启sshd服务即可。
[root@192.168.0.203 ~]# service sshd restart

测试OK：
[root@chenhp ~]# ssh root@192.168.0.203
root@192.168.0.203's password:
Last login: Thu Feb 21 03:55:05 2013 from 192.168.0.11

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