解决mac os下连接github出现 ‘Failed to connect to github.com port 443: Connection refused’

最近两天push项目代码到github，突然出现Failed to connect to github.com port 443: Connection refused错误，一直无法正常push

期间升级git版本，Google，度娘各种问，均未能解决问题

猛然想起为了翻越长城曾经修改过host文件，一看，果然如此，解决方法也很简单，将host文件恢复到默认即可

以下为命令行和原版的host，操作host文件需要root权限, 将host内容粘贴进去然后wq退出即可

[code lang=”shell”]
$ sudo -i
$ cd /etc
$ rm hosts
$ vi hosts
[/code]

[code lang=”shell”]
##
# Host Database
#
# localhost is used to configure the loopback interface
# when the system is booting. Do not change this entry.
##
127.0.0.1 localhost
255.255.255.255 broadcasthost
::1 localhost
[/code]