Run as group fails (sudo -g)

view full story

http://askubuntu.com – I would like to run a command with temporary group membership but it seems that I don't have permission to do that. As an example, if I run sudo -g internet ls, I get the message Sorry, user rudivonstaden is not allowed to execute '/bin/ls' as rudivonstaden:internet on rudivonstaden-desktop. In my limited understanding, this should be governed by the /etc/sudoers file, potentially modified by files in /etc/sudoers.d. The latter folder only contains the README file, and the sudoers file has the following: root ALL=(ALL:ALL) ALL %sudo ALL=(ALL:ALL) ALL As far as I can tell, that should (HowTos)