一、替换brew.git:

cd "$(brew --repo)"
git remote set-url origin https://mirrors.ustc.edu.cn/brew.git

二、替换homebrew-core.git:

cd "$(brew --repo)/Library/Taps/homebrew/homebrew-core"
git remote set-url origin https://mirrors.ustc.edu.cn/homebrew-core.git 

三、配置 hosts

打开终端，编辑hosts文件（管理员权限）

sudo vim /etc/hosts

添加以下内容

# GitHub
151.101.13.194 github.global.ssl.fastly.net 
151.101.185.194 github.global.ssl.fastly.net
192.30.253.112 github.com 
52.216.230.141 s3.amazonaws.com
192.30.253.112 www.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 
151.101.12.133 avatars0.githubusercontent.com 
151.101.112.133 avatars1.githubusercontent.com
# GitHub End

刷新dns

sudo dscacheutil -flushcache

四、如何获取GitHub的IP地址

可以通过访问 https://www.ipaddress.com/ 这个网站来获取当前GitHub最新的IP地址。

最后给大家推荐一个非常强大的 hosts 配置：传送门