最近要github下載東西，發現raw.githubusercontent.com一直無法連接（歸隱山林太久）
整理一下最終的解決思路。
域名的ip查詢找到當前域名使用的ip，在host文件添加就行，具體如下：
sudo vi /etc/hosts
# GitHub
140.82.113.4 github.com
199.232.28.133 githubusercontent.com
199.232.28.133 raw.githubusercontent.com
192.30.253.112 github.com
192.30.253.113 github.com
192.30.253.119 gist.github.com
192.30.255.112 github.com git
151.101.185.194 github.global.ssl.fastly.net
151.101.88.249 github.global.ssl.fastly.net
151.101.100.133 assets-cdn.github.com
151.101.100.133 raw.githubusercontent.com
185.31.16.184 github.global.ssl.fastly.net
52.74.223.119 github.com
192.30.253.119 gist.github.com
54.169.195.247 api.github.com
185.199.111.153 assets-cdn.github.com
151.101.76.133 raw.githubusercontent.com
151.101.108.133 user-images.githubusercontent.com
151.101.76.133 gist.githubusercontent.com
151.101.76.133 cloud.githubusercontent.com
151.101.76.133 camo.githubusercontent.com
151.101.76.133 avatars0.githubusercontent.com
151.101.76.133 avatars1.githubusercontent.com
151.101.76.133 avatars2.githubusercontent.com
151.101.76.133 avatars3.githubusercontent.com
151.101.76.133 avatars4.githubusercontent.com
151.101.76.133 avatars5.githubusercontent.com
151.101.76.133 avatars6.githubusercontent.com
151.101.76.133 avatars7.githubusercontent.com
151.101.76.133 avatars8.githubusercontent.com