There is no 'Apply System Wide' option.I have to manually change /etc/apt/apt.conf file every time I set or unset proxy.
How do I configure it so that it applies system wide proxy settings – with apt.conf updating accordingly in Ubuntu 18.04?
EDIT:
Despite setting apt.conf manually, I'm not able to install anything through Ubuntu Software because an "Unsupported proxy configured: proxy.server.com//8080" error comes up. How do I fix this?
Best Answer
Set proxy details in Environment variables;
Edit
/etc/environment
and add following lines (replace username, password, host and port with your proxy details).For apt,software center & etc;
edit
/etc/apt/apt.conf.d/80proxy
(if its not exist create it) and add the following lines