Ubuntu – How to configure proxies without GUI

PROXY

How do you configure proxy settings in the Ubuntu Server or Minimal (CLI) versions using the terminal?

System-wide proxies in CLI Ubuntu/Server must be set as environment variables.

• Open the /etc/environment file with vi (or your favorite editor). This file stores the system-wide variables initialized upon boot.
• Add the following lines, modifying appropriately. You must duplicate in both upper-case and lower-case because (unfortunately) some programs only look for one or the other:

http_proxy="http://myproxy.server.com:8080/"
https_proxy="http://myproxy.server.com:8080/"
ftp_proxy="http://myproxy.server.com:8080/"
HTTP_PROXY="http://myproxy.server.com:8080/"
HTTPS_PROXY="http://myproxy.server.com:8080/"
FTP_PROXY="http://myproxy.server.com:8080/"

• apt-get, aptitude, etc. will not obey the environment variables when used normally with sudo. So separately configure them; create a file called 95proxies in /etc/apt/apt.conf.d/, and include the following:
Acquire::http::proxy "http://myproxy.server.com:8080/";