apt

1. 临时设置 sudo apt-get -o Acquire::http::proxy="http://127.0.0.1:8000/" update 2. 永久设置 创建/etc/apt/apt.conf touch /etc/apt/apt.conf 写入如下内容： Acquire::http::Proxy "http://yourproxyaddress:proxyport"; 如果proxy需要密码，则格式如下： Acquire::http::Proxy "http://username:password@yourproxyaddress:proxyport"; Reference: https://www.jianshu.com/p/fdae9cb5181b https://askubuntu.com/questions/257290/configure-proxy-for-apt