/etc/polkit-1/localauthority.conf.d/50-localauthority.conf:[Configuration]

/etc/polkit-1/localauthority.conf.d/50-localauthority.conf:AdminIdentities=unix-user:0

/etc/polkit-1/localauthority.conf.d/51-ubuntu-admin.conf:[Configuration]

/etc/polkit-1/localauthority.conf.d/51-ubuntu-admin.conf:AdminIdentities=unix-group:admin

/etc/polkit-1/nullbackend.conf.d/50-nullbackend.conf:[Configuration]

/etc/polkit-1/nullbackend.conf.d/50-nullbackend.conf:Priority=-10