Changing server setting when not allowed to do sudo su Forum / NoMachine for Linux / Changing server setting when not allowed to do sudo su This topic has 3 replies, 2 voices, and was last updated 1 year, 4 months ago by Cato. Viewing 4 posts - 1 through 4 (of 4 total) Author Posts May 19, 2022 at 02:51 #38662 gcollinsParticipant Hi, When I try to change Server Settings on the UI (Ubuntu 20.04), I get the error “Authentication failed, please try again”. When I look in /var/log/auth.log it appears that NoMachine is trying to do a “sudo su” which I am not allowed to do on this machine: I see the command NoMachine is trying to run from sudo is: /usr/bin/su -l root -c pwd Anyway around this? I know I can run these commands from the command line to stop/start the server: sudo /etc/NX/nxserver --shutdown/--startup But I was hoping to use the UI Thanks! May 19, 2022 at 11:18 #38667 CatoParticipant Hello gcollins, Can you try to use root’s credentials in prompt asking for user with administrative rights? May 19, 2022 at 14:18 #38669 gcollinsParticipant I don’t have root credentials, only sudo with restrictions (i.e. no sudo su and restrictions on stopping specific services) May 20, 2022 at 09:42 #38682 CatoParticipant NoMachine allows administrative operations to be performed on Linux only by root account or by demonstrating administrative privileges by being able to ‘sudo su’. Author Posts Viewing 4 posts - 1 through 4 (of 4 total) This topic was marked as closed, you can't post.