Linked Questions

41
votes
3answers
54k views

How to apply changes of newly added user groups without needing to reboot? [duplicate]

Assume I'm logged in with user takpar: takpar@skyspace:/$ As root, I've added takpar as a member of group webdev using: # usermod -a -G webdev takpar But it seems it has not been applied, because ...
17
votes
1answer
19k views

usermod -a -G group user not work [duplicate]

I use Ubuntu 12.04. I am trying to add the user gefalko to the www-data group. I use root@xxx~# usermod -a -G www-data gefalko If I understand correctly, I should now see www-data in the output of ...
11
votes
2answers
34k views

wireshark: Couldn't run /usr/sbin/dumpcap in child process [duplicate]

Possible Duplicate: How to add write permissions for a group? When I run Wireshark, It shows the following message: Couldn't run /usr/sbin/dumpcap in child process: Permission denied Are you a ...
8
votes
1answer
16k views

id command doesn't show all user's groups [duplicate]

I did a usermod to add the current user user in a group, but when I run id -Gn it only shows the main user's group: [user@computer ~]$ id -Gn user But when I specify the user, it works normally: [...
10
votes
1answer
14k views

Why can't I create a file in a directory where I have group write access? [duplicate]

There's a situation I don't quite understand. I have this directory, where the group 'webadmin' has rwx rights : $ ls -la total 8 drwxrwxr-x 2 root webadmin 4096 Aug 27 12:17 . ⋮ ...
5
votes
1answer
3k views

What part of chmod 770 am I misunderstanding? [duplicate]

I was trying to experiment with users, groups, and permissions. The results can be seen below: vagrant@cats:/$ ls -l | grep home drwxr-xr-x 5 root admin 4096 Sep 28 05:49 home vagrant@cats:/$ ...
5
votes
1answer
7k views

Not able to change default group for user with `sudo usermod -g` [duplicate]

I have looked at the questions and answer here at U&L but I still cannot get my default group to change from a user. [red@ws-red-l ~]$ whoami red [red@ws-red-l ~]$ groups yellow green [red@ws-red-...
1
vote
1answer
7k views

Full access by group user of /var/www/html [duplicate]

Possible Duplicate: How to add write permissions for a group? On Centos 6 I'm trying to give full access to make and delete by the user mitch for /var/www/http. I did addgroup www and then chmod ...
5
votes
1answer
732 views

Can I add to my groups in the current (shell) process? [duplicate]

If I add myself to a group, it applies only to newly launched processes. Actually it's more restricted than that; it seems to apply only to new logins. I'm not sure what the exact mechanism is, but ...
1
vote
1answer
1k views

Read file permission denied despite sufficient permissions [duplicate]

I'm attempting to cat a file with 770 permissions as a user who is part of the group (but not the owner of the file). This should provide sufficient permissions to my understanding, yet I encounter a ...
0
votes
1answer
616 views

As what user does a command end up executing? [duplicate]

How can I find out as what user a command executes? (I'm running Ubuntu, but I suspect the answer applies to Unix in general). What I'm trying to do is get msmtp running and logging to /var/log/msmtp....
3
votes
2answers
131 views

Why does “logging out” of a session activate a newly added supplementary group? [duplicate]

I asked the following question Added user supplementary group, but 'groups(1)' not showing change earlier today. Now I'd like to know why the answer works. After running adduser user group ...
0
votes
1answer
294 views

Why can't I create directories under /root as a member of root? [duplicate]

I've done the following: sudo usermod -a -G root userA sudo su - root cd / chmod 775 root ls -aln -- drwxrwxr-x. 6 0 0 4096 Sep 13 22:04 root I can cd /root from my userA, but I can't make ...
1
vote
1answer
182 views

Troubleshooting joining a group in Mint in VirtualBox [duplicate]

I am trying to join my user to the vboxsf group to access a VirtualBox shared folder from inside my Linux Mint virtual machine. However I'm encountering a problem that I can't troubleshoot. I've ...
0
votes
1answer
130 views

Permissions not extended to user in minecraft group [duplicate]

I have a directory, under /srv: drwxrwxr-x 3 minecraft minecraft 4096 Dec 30 06:23 minecraft Owned by user minecraft, group minecraft. Group has read/write/search permissions. I have a user, ...

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