policy files located in /usr/share/polkit-1/actions . Each action has a set of default permissions attached to it (e.g. you need to identify as an administrator to use the GParted action). The defaults can be overruled but editing the actions files is NOT the correct way.

What is PolKit in Linux?

PolKit (formerly known as PolicyKit) is an application framework that acts as a negotiator between the unprivileged user session and the privileged system context. Whenever a process from the user session tries to carry out an action in the system context, PolKit is queried.

What is PolKit in Ubuntu?

Polkit (formerly PolicyKit) is a component for controlling system-wide privileges in Unix-like operating systems. ... Fedora became the first distribution to include PolicyKit, and it has since been used in other distributions, including Ubuntu since version 8.04 and openSUSE since version 10.3.