修改 hosts
sudo vim /etc/hosts
配置 dns
151.101.185.194 github.global.ssl.fastly.net
192.30.253.112 github.com
151.101.112.133 assets-cdn.github.com
151.101.184.133 assets-cdn.github.com
185.199.108.153 documentcloud.github.com
192.30.253.118 gist.github.com
185.199.108.153 help.github.com
192.30.253.120 nodeload.github.com
151.101.112.133 raw.github.com
23.21.63.56 status.github.com
192.30.253.1668 training.github.com
192.30.253.112 www.github.com
151.101.13.194 github.global.ssl.fastly.net
151.101.12.133 avatars0.githubusercontent.com
151.101.112.133 avatars1.githubusercontent.com
刷新DNS
dscacheutil -flushcache
查询 IP(可选)
获取GitHub官方CDN地址
打开https://www.ipaddress.com/查询以下三个链接的DNS解析地址
1. github.com
2. assets-cdn.github.com
3. github.global.ssl.fastly.net