Push to GitHub：could not resolve host: github.com

系统：Mac os x 10.11.3

操作：Push to GitHub

错误如下： 
git push origin 
ssh: Could not resolve hostname ssh.github.com: Name or service not known 
fatal: Could not read from remote repository.

Please make sure you have the correct access rights 
and the repository exists. 
make: * [deploy] 错误 128

解决方式1： 
step1. ping github.com 
获取到github.com的ip为192.30.252.128 
step2. 在/etc/hosts（可以通过shift＋command＋g快速跳转）中添加一行如下: 
192.30.252.128 github.com

解决方式2： 
以root权限执行如下python代码

 #!/usr/bin/python

 #coding=utf8

 import socket

 host = 'github.com'

 try:

     with open('/etc/hosts', 'a+') as fp:

         ip = socket.gethostbyname(host)

         fp.write(' '.join([ip, host, '\n']))

 except BaseException as e:

     print(e)

 else:

     print('sucess')

特别的：部分朋友找不到/etc/hosts

参考办法：

向原者致敬，我刚才碰到这个问题，整理分享给大家。

http://blog.csdn.net/piaotiejun/article/details/48734175