GitHub 访问加速

 

前言

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由于某些原因，国内访问Github会异常缓慢，在clone仓库时甚至只有10k以下的速度，下载半天有时还会失败需要从头再来，甚是让人恼火。

本文介绍通过修改系统hosts文件的办法，绕过国内DNS解析，直接访问GitHub的CDN节点，从而达到加速的目的。不需要科学上网，也不需要海外的服务器辅助。

 
 

获取 GitHub 官方 CDN 地址

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1. 打开 https://www.ip138.com/
2. 查询以下三个链接的DNS解析地址
   • github.com
   • assets-cdn.github.com
   • github.global.ssl.fastly.net
3. 记录下查询到的IP地址。

 
 

修改系统 Hosts 文件

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1. 打开系统hosts文件(需管理员权限)。

2. 路径：C:\Windows\System32\drivers\etc

3. 在末尾添加三行记录并保存。(需管理员权限，注意IP地址与域名间需留有空格)

   # 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
   192.30.253.112    github.com
   151.101.72.133    assets-cdn.github.com
   151.101.193.194    github.global.ssl.fastly.net
   

 
 

刷新系统DNS缓存

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1. Windows+X 打开系统命令行（管理员身份）或powershell
2. 运行 ipconfig /flushdns 手动刷新系统DNS缓存。
3. 现在打开Github，clone一个项目到本地试试吧，宽带会轻松达到10M/s的速度