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?
http://
in front of the hostname, everything else irritates apt