cd /etc/apt/apt.conf.d vi 01proxy
内容为
Acquire::http::proxy "http://119.119.119.9:8080/"; Acquire::ftp::proxy "ftp://119.119.119.9:8080/"; Acquire::https::proxy "https://119.119.119.9:8080/";
更新ubuntu
sudo apt-get update sudo apt-get upgrade
cd /etc/apt/apt.conf.d vi 01proxy
Acquire::http::proxy "http://119.119.119.9:8080/"; Acquire::ftp::proxy "ftp://119.119.119.9:8080/"; Acquire::https::proxy "https://119.119.119.9:8080/";
sudo apt-get update sudo apt-get upgrade