Questions tagged [groups]
The groups tag has no usage guidance.
178
questions
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21 views
Group permissions issue /dev/vboxusb
Within VirtualBox 5.2.34 under Ubuntu 18.04 LTS I encountered the issue regarding USB device forwarding. There are no devices.
After investigation of the issue I found out the reason is in below. But ...
1
vote
1answer
142 views
Webcam not working Ubuntu 18.04
I have installed Ubuntu 18.04, but the applications (Skype, Cheese) says no device found.
I have reviewed several topics on the subject, but none seem to work.
Thank you!
Edit: In a beginning the ...
0
votes
3answers
36 views
Why is “usermod -a -G” not adding my user to the group?
I'm using Ubuntu 18.04. I want to add my user, "davea" to the group "www-data". I tried this
(venv) davea@chicommons-laboratory:/var/www/html/web$ groups
davea sudo
(venv) davea@chicommons-...
0
votes
1answer
14 views
User is in docker group but can't access docker commands anymore without calling `newgrp docker` before
I'm using Ubuntu 18.04.4 LTS as my Desktop system and I usually had the user in the docker group for being able running Docker commands.
It seems that something recently changed and now I can't call ...
0
votes
1answer
20 views
Adding an user to www-data group not working
I am trying to add my user to the www-data group in order to be able to edit the files there without admin rights. This is the command I have used to do that:
$ sudo usermod -aG www-data n_user
$ ...
0
votes
1answer
47 views
Permission denied for transmission daemon event
I bit my teeth on this problem: I'm trying to set up transmission-daemon with an incomplete and done directory.
Downloading to incomplete does work fine, but for the done directory I receive a ...
0
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0answers
35 views
polkit and active directory groups
In my scenario I allow some Windows Active Directory groups to be sudo, like "%Domain Admins" or %AG_Linux_Admins, editing visudo.
The users members of Domain Admins or AG_Linux_Admins are able to be ...
2
votes
0answers
116 views
Why should all world-writable directories be owned by a privileged group?
I'm reading an Ubuntu security guide developed for the US Department of Defense, to be found here. Written for 16.04 but I don't think this particular item has changed much. The guide says,
Group ...
0
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2answers
2k views
Give user access to directory in another user's home folder
I have a directory inside my home folder that I'd like another user to be able to access. I created a group for him and we both joined it, and I did
sudo chgrp -R group folder/
He still cannot get ...
2
votes
3answers
119 views
is there an LS for users?
I want to see what files and folders a user on my system has permission to.
I am an admin, on the system. how do I get more information about what files and folders a user can access?
Command line ...
11
votes
3answers
1k views
How do I find files with no group permissions?
I just want to know how I can find, in a folder, the files that have no group user permission (no read/write/execute) at all, using the terminal.
2
votes
2answers
90 views
Users that aren't sudoers can't write SD images
I'm running Ubuntu 16.04 on my laptop. My son has a Raspberry Pi and uses my laptop to write SD card images as it had an integrated card reader.
Whilst he can mount, format, read and write the cards ...
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0answers
98 views
why does my user not belong to other groups until password is entered?
I have the problem that when I open a graphical shell in KDE (XTerm or Konsole, both show the same "problem") and I type groups, the only group displayed carries my user's name. I need to first do su ...
3
votes
1answer
1k views
log alert: unknown group “power” in message bus config file
Server v18.04 log has many of these:
Sep 3 21:32:17 [pcname] dbus-daemon[1179]: Unknown group "power" in message bus configuration file
What does this mean?
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0answers
436 views
can't add user to a group
I would like to add my usr ron to the docker group, so I did the following:
ron@regDesktopHome:~$ sudo usermod -a -G docker ron
ron@regDesktopHome:~$ groups
ron
Why does it only show group ron as ...
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0answers
29 views
How to allow AD Users to access Docker only
I have AD service on AWS and have Docker installed on one of the Ubuntu machines. My requirement is to allow only users who are part of a particular AD group to access Docker.
I tried mapping the ...
0
votes
1answer
105 views
Automating removal of legacy entries in /etc/group
I'm removing entries in /etc/group programmatically.
Because I cannot use grep, cat, or cut for this exercise, I wrote my own program that can produce stdout and stdout data to essentially read a ...
1
vote
2answers
134 views
Setting Group Permissions
I have many users and two groups. Some of them are member of group1 and others are member of group2. I want to allow group1 to access all directories, and I want to allow group2 to access to specific ...
4
votes
1answer
6k views
Is it possible to use docker without sudo?
According to the answers of this question about docker, running it as a non-root is as easy as adding the non-root username to the docker group, and logging out and back in. And sure enough, when I ...
2
votes
2answers
194 views
`groups` and `groups $USER` show different groups (dialout is missing)
I have a problem opening a USB port /dev/ttyUSB0.
The device node for this port is:
crw-rw---- 1 root dialout 188, 0 juil. 25 17:18 /dev/ttyUSB0
It seems that there's a problem with groups command ...
0
votes
1answer
58 views
Why would 'groups' and 'groups [myname]' give different results?
I am have trouble getting docker to work, and I suspect it has to do with permissions and membership of the 'docker' group.
I have run the command to add myself to the docker group
sudo usermod -aG ...
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0answers
41 views
Change root display name
Renaming root is a bad idea, as it can break a lot of things. But how about changing the name that gets displayed in tools like ls or stat? For example
# From
drwxr-xr-x 2 root root 4.0K May 16 14:...
6
votes
1answer
479 views
Why did I need to *reboot* to change my group membership [duplicate]
Attempting to install MythTV on Ubuntu 18.04, I ran...
sudo usermod -a -G mythtv roger
...and logged out and back in. This should be sufficient. But: my group memberships didn't change.
I had to ...
5
votes
1answer
2k views
Why is my GID environment variable empty?
I try echo $GID but get nothing. However, I can get 1000 by using id -g, what's the differences between them ?
id -u => 1000
id -g => 1000
echo $UID => 1000
echo $GID =>
The ...
2
votes
2answers
5k views
Edit Sudoers file to allow sudo rights to a AD domain group
I recently managed to get my Ubuntu Server 18.04 machine connected to my companies Windows AD. I am able to login with my AD credentials however I want to take it a step further...
This is the ...
1
vote
1answer
811 views
useradd -g option doesn't seem to be working
I tried:
sudo useradd -s "/bin/false" -g [existingGroupName] [userNameToAdd]
After the command I looked it up in /etc/group, but the user is not in the [existingGroupName]. Why is that so?
0
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0answers
157 views
groupadd hangs while /etc/group.lock does not exist only works with -g param
I have a problem with adding group on ubuntu 16.04.
I tried to add group using groupadd , but the tasks hangs until i kill it.
before running it again i have to remove /etc/group.lock.
and then when i ...
1
vote
1answer
90 views
How to know what program needs which group to be executed without sudo
In particular I want to create bridges dynamically, but without the need of running it with sudo. I think it's the group netdev.
But is there, and I'm sure there is, a general answer to the question: ...
1
vote
1answer
379 views
Terminal shows that my user is only a member of its group, but it is not true - how to fix?
I went to strange situation on my laptop (running Ubuntu 16.04.5 LTS).
All terminals show that my sudo-able user is only a member of its group:
$ whoami
norbert
$ groups
norbert
$ id
uid=1000(...
0
votes
1answer
271 views
how give permission for reset apache without admin permission?
my user don't have admin permission and i do not want to give admin permission to them.
how give permission that they see log and reset and change config in apache?
is there apache admin group that ...
7
votes
1answer
717 views
What is the significance of the output of cat /etc/group? [duplicate]
When I run cat /etc/group on Ubuntu 18.04, I get this output:
root:x:0:
daemon:x:1:
bin:x:2:
sys:x:3:
adm:x:4:syslog,singrium
tty:x:5:
disk:x:6:
lp:x:7:
mail:x:8:
news:x:9:
uucp:x:10:
man:x:12:
...
3
votes
1answer
386 views
Can a user also be a group itself?
In my Ubuntu 16.04 terminal, logged in as "john" (a normal user), I enter:
john@ubuntu-server:~$ groups john
Then the output goes:
john: john adm ......
So I wonder how john can be a user and a ...
1
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0answers
41 views
User group membership appears to be empty [duplicate]
I appear to be having issues with group membership for the single user on my Ubuntu laptop. I found this initially when trying to access a USB stick and finding I was getting access denied. I checked ...
2
votes
0answers
34 views
Can I define a parent group and children groups?
In Linux is it possible to create a master group and some children groups?
What is the problem?
I need to give read permission to the users belong to group1 and group2.
I cannot add all users of ...
2
votes
1answer
50 views
Delete folders owned by specific group?
I have loads of folders and files in the storage system, files and folders created by a specific group needs to be removed, but I can't find any smart quick way to do it. Not via find or anything.
1
vote
1answer
550 views
how should `id` and `/etc/group` be read?
This is a follow-up question to Why is a user not a member of their private group (UPG)? although the first question isn't really necessary to understand this one.
The command id seems pretty clear......
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0answers
200 views
Why is a user not a member of their private group (UPG) according to the GUI? (although CLI proves the opposite…)
I downloaded the current iso file of Ubuntu MATE from the website.
I did a completely fresh install of Ubuntu MATE 16.04 (specifically 16.04.5).
the same is true for Ubuntu MATE 18.04 (specifically ...
2
votes
1answer
1k views
User not in group despite /etc/group contents
I added a new group (call it newgroup)
sudo groupadd newgroup
I then added my existing user (call him myuser) to newgroup
sudo usermod -a -G newgroup myuser
I log out and back in, and I check /etc/...
0
votes
1answer
96 views
Groups for logged in user are missing [duplicate]
I am seeing a weird issue with my laptop installed with Ubuntu. When I log in and enter a terminal, I am missing groups:
~$ groups
ant
If I explicitly specify the username, I see all the groups:
~$ ...
1
vote
1answer
250 views
Ubuntu logs me back in immediately after logout [closed]
A few days ago I noticed that when I log out of Ubuntu 16, the screens go black and then I am immediately logged back in again. I do not have autologin enabled.
Observations of other strange ...
0
votes
0answers
27 views
File group has changed without me changing it
I was working with a file today that I don't own. I copied it to a /tmp folder, gave myself sudo permissions and then changed the owner to myself using chown. I then made my changes.
Afterwords I ...
1
vote
1answer
2k views
How to recover from accidentally removing the sudo group
I am using Ubuntu 18.04. I accidentally removed the sudo group. Is there any way to recover from this? I still have access to the root account. I tried to add the sudo group again with the root user, ...
4
votes
1answer
2k views
Lost supplementary user groups for GUI login session
Ubuntu 16.04.5
Very weird situation - after Xorg crash, now every time when I login into Unity, my user account doesn't have it's system groups like adm, sudo, plugdev, fuse etc. But when I login on ...
4
votes
2answers
2k views
Secondary user groups not loaded
After the apt-get update and apt-get upgrade run few days ago, user groups are not applied properly to the currently logged-in user.
I can see all the groups being properly saved in the /etc/passwd ...
1
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0answers
40 views
Users unable to access group folder
I have a folder in an AD login environment:
drwxrwx--- 4 tbest3 cri-meltzer_anemia 102 Jul 11 11:06 Anemia
drwxrwx--- 4 339776130 339820461 102 Jul 11 11:06 Anemia
These two ...
2
votes
2answers
1k views
All of a sudden I'm getting permission errors
I'm running Ubuntu 16.04.4 LTS and facing a problem.
All of a sudden I'm unable to edit files that I could before, I cannot run programs due to permission errors.
I'm always logged in as a user ejaz ...
2
votes
1answer
771 views
How do I check that my users and groups are correct?
I have many Ubuntu-powered devices around me.
As far I know /etc/group, /etc/passwd, /etc/shadow are created during installation, so they do not belong to any package:
$ dpkg -S /etc/passwd
dpkg-...
1
vote
1answer
403 views
groupmems asks for password for root
I have a few scripts that use groupmems to view and modify what users are in a group.
The script runs as root. In Ubuntu 18, it has started to ask for a password, even thou I run as root:
root@ubu18:~...
19
votes
3answers
4k views
After adding a group, logout+login is not enough in 18.04?
In ubuntu 18.04 with default desktop, behaviour of logout/login has changed:
Previously on an Ubuntu system, when I find that I need to add my user id to some group, it was sufficient to
sudo ...
1
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0answers
99 views
Can't delete user from group with ldapdeleteuserfromgroup
I have user accounts with usernames that are numerical (I know Ubuntu doesn't like that, sorry)
In this case, I have a username 18000011 who is a member of the group students:
~$ groups 18000011
...
