To use Software Sources you will need to authenticate with your password as this changes systemwide settings. You can navigate the Software Sources using the tabs at the top of the window.
The :guilabel:`Ubuntu Software` tab contains settings involving the downloading of software from Ubuntu repositories. Here you can disable proprietary software and select a download server among other things. To toggle enabling /disabling the proprietary drivers check/uncheck the :guilabel:`Proprietary drivers for devices(restricted)` checkbox. To toggle enabling/disabling other proprietary software check/uncheck the :guilabel:`Software restricted by copyright or legal issues(multiverse)` checkbox. To change the mirror or where you download change the :guilabel:`Download from` drop down menu. The :guilabel:`Main Server` option downloads from the main Ubuntu server. There is an :guilabel:`Other` option with a large list of mirrors. The :guilabel:`Mirror` column lists a collapse list of mirrors to download from. To choose the fastest option press the :guilabel:`Select Best Server`.
The :guilabel:`Ubuntu Software` tab contains settings involving the downloading of software from Ubuntu repositories. Here you can disable proprietary software and select a download server among other things. To toggle enabling /disabling the proprietary drivers check/uncheck the :guilabel:`Proprietary drivers for devices(restricted)` checkbox. To toggle enabling/disabling other proprietary software check/uncheck the :guilabel:`Software restricted by copyright or legal issues(multiverse)` checkbox. To change the mirror or where you download change the :guilabel:`Download from` drop down menu. The :guilabel:`Main Server` option downloads from the main Ubuntu server. There is an :guilabel:`Other` option with a large list of mirrors. The :guilabel:`Mirror` column lists a collapse list of mirrors to download from. To choose the fastest option press the :guilabel:`Select Best Server`. To see what protocol you will use to download packages from this mirror see the :guilabel:`Protocol` field.
