解决在hexo上github推送连接失败的问题

在国内，有时候使用 git clone 的速度实在太慢而让人难以承受，或者 git pull/git push 一点反应都没有，这里整理了一下解决方法，亲测有效。
总的来说，这是因为 github.global.ssl.fastly.net 域名被限制了。只要找到这个域名对应的 ip 地址，然后在 hosts 文件中加上 ip–>域名 的映射，刷新 DNS 缓存便可。

1.查找域名对应的 ip 地址

• 在网站 https://www.ipaddress.com/ 分别搜索 github.global.ssl.fastly.net 和 github.com

• 或者在本地的终端中如下键入：

  $ nslookup github.global.ssl.fastly.Net
  Server:  127.0.0.53
  Address: 127.0.0.53#53
  
  Non-authoritative answer:
  Name: github.global.ssl.fastly.Net
  Address: 151.101.229.194
  
  $ nslookup github.com
  Server:  127.0.0.53
  Address: 127.0.0.53#53
  
  Non-authoritative answer:
  Name: github.com
  Address: 13.229.188.59

2. 修改 hosts 文件

• Windows 上的 hosts 文件路径在: C:\Windows\System32\drivers\etc\hosts
  在 hosts 文件末尾添加两行

  # Copyright (c) 1993-2009 Microsoft Corp.
  #
  # This is a sample HOSTS file used by Microsoft TCP/IP for Windows.
  #
  # This file contains the mappings of IP addresses to host names. Each
  # entry should be kept on an individual line. The IP address should
  # be placed in the first column followed by the corresponding host name.
  # The IP address and the host name should be separated by at least one
  # space.
  #
  # Additionally, comments (such as these) may be inserted on individual
  # lines or following the machine name denoted by a '#' symbol.
  #
  # For example:
  #
  #      102.54.94.97     rhino.acme.com          # source server
  #       38.25.63.10     x.acme.com              # x client host
  
  # localhost name resolution is handled within DNS itself.
  #	127.0.0.1       localhost
  #	::1             localhost
  
  199.232.69.194 github.global.ssl.fastly.net

• Linux 的 hosts 文件路径在 /etc/hosts 中:

  $ sudo vim /etc/hosts

3. 刷新 DNS 缓存

• windows

  ipconfig /flushdns

• linux

  $ sudo /etc/init.d/networking restart

4. 参考文献
   解决linux上git clone速度慢的问题
   git clone速度太慢的解决办法
5. 本文转载自
   解决 GitHub 的 host 域名被限制的问题