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Linux changing sudo/admin status requires restart? (lemmy.today)
submitted 3 months ago by to c/linuxquestions@lemmy.zip
14 comments fedilink hide all child comments
 

Distribution: Fedora Linux 44 (Workstation Edition)

I created a new Linux user and gave it admin with the gui interface, I then switched to it, but could not run sudo commands.

So I entered sudo usermod -a -G wheel [USER] to grant sudo rights through the cli, but still, the new user could not use sudo.

I logged in and out multiple times, but it did not help.

Then I restarted Linux and suddenly the new user could use sudo.

To test if it was now working, I striped sudo rights from the new user. But then I realized that the new user could still use sudo.

So it seems that sudo privileges only update on operating system restart? Is this correct, or is something wrong with my system?

Sorry if this is a stupid post

all 14 comments

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[–] 14 points 3 months ago (8 children)

Normally groups update at login, so logging in and out should have done it. When your logged in, groups should give you your active groups.

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  • [–] [S] 2 points 3 months ago (7 children)

    I tried logging in and out multiple times, for the case that user switching doesn't count as re-login.

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  • [–] 2 points 3 months ago (6 children)

    Yeah, thats very weird. I dunno if that is some new quirk, but it definitely sounds wrong. You can also cat /etc/groups to see what groups a user has been added to, maybe something was preventing that file being updated?

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  • [–] [S] 2 points 3 months ago* (5 children)

    You can also cat /etc/groups to see what groups a user has been added to, maybe something was preventing that file being updated?

    Is there a difference to group [Username] ?

    Do you think that its necesary for me to fix this, or could I just accept that its that way and I need to reboot if I change permissions?

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  • [–] 2 points 3 months ago (4 children)

    Not sure if there is a difference, might have to check the man page.

    groups gives you your current active groups for your current session. /etc/groups will give you the groups that you get for the next session. Not sure about group username, might be the same.

    Its weird, but given you won't be changing groups for users frequently, I don't think I would bother fixing it. Maybe Fedora changed something recently so this is how it is now? I would just forget about it.

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  • [–] [S] 2 points 3 months ago (3 children)

    Ok,

    My plan was just to make a "admin" user that has admin and sudo rights and then remove admin/sudo from my main user.

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  • [–] 1 point 3 months ago (2 children)

    May I ask why you want tondo this?

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  • [–] [S] 2 points 3 months ago (1 child)

    So that I be able to use Gnome Parental Control to regulate my self. Especially in the way of bedtime enforcement

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  • [–] 1 point 3 months ago

    Not a bad idea! I started with a sun based dimming and red shift of the screen light, so that it's not keeping me awake, but I live in Norway, so I had to switch to clock based, as we switch between 3 hours of daytime to 3 hours of nighttime throughout the years, but it has worked out quite well over the last few years. Not restrictive if I want to stay up, but still not keeping me awake, making it easy to go straight to bed when I'm getting drowsy.

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    • [–] 5 points 3 months ago (1 child)

    I would expect this to get set on login but maybe it’s some systemd quirk.

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    • [–] 2 points 3 months ago (1 child)

    I think you could use newgrp sudo so you don't need to reboot.

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    • [–] [S] 1 point 3 months ago*

    Can someone say me if I can let it be that way if I'm ok with rebooting for sudo permission changes or if its necessary to fix this?

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