On my 18.04 i have copied the content of proxy.conf to apt.conf and it worked
sudo cp /etc/apt/apt.conf.d/proxy.conf /etc/apt/apt.conf -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1730672 Title: Proxy settings not applied system-wide, are not used by Software Update or apt To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/1730672/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
