So, i’m using Antergos Gnome and i would like to make the university proxy work system wide.

For example, if i try using in terminal sudo pacman -Syu it doesn’t work and says that a conection to the server couldn’t be made.

Also, spotify-client doesn’t connect. EDIT: Spotify can work if we configure an HTTPS proxy in spotify client GUI settings.

I am looking for an GUI solution, is there any easy way to do this in Antergos? I know on Opensuse 42.1 Leap there was and it worked. It was an app called “Proxy”.