Anything related with user accounts and user management on Unix-like systems.

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0
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0answers
21 views

vfat mount only seen by 'root'

For the sake of this question, I'll assume the device /dev/disk/by-name/device formatted as vfat, the mount point /mount/point and the user named pancakes with uid 1000. As root, I attempted to mount ...
0
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0answers
23 views

A puppet configuration style for users

I want to set a configuration managment utility for users, like puppet but for users, I need to install one package or another or apply one manifest (in puppet) in order of the user that is logged in ...
1
vote
1answer
116 views

Unable to login as a newly created user

I have a dual boot Kali Linux along with windows 7. Now when I installed Kali it logs me in as root. I do not have a login in my name. So I created a user with the following steps. However when I ...
7
votes
3answers
20k views

How to create an unprivileged user in CentOS?

I want to create an unprivileged user to run my RhodeCode server and Celery daemon on a CentOS instance. I think the accepted definition of this is no home directory, login disabled, and no shell ...
3
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3answers
4k views

adding list of users to multiple groups

I have a shell script which add list of users which is listed in another file lets say users.txt. After that, I want my script to add users to multiple existing groups with condition, one user may ...
2
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1answer
85 views

How does file system permission behave on different systems sharing an NFS export?

I'm familiar with how Linux permissions work on a single machine, but what happens when a directory is shared (specifically via NFS)? Also, what happens when two users are seemingly the same (same ...
3
votes
1answer
255 views

Two users with different permissions on same directory

Is it possible to give two users different permissions on the same directory? I want to use it for ftp: userFull gets R+W and userLim gets only Read, depending on who logs on. Im getting stuck on the ...
6
votes
1answer
5k views

Keep same file owner for newly created files

This question is regarding samba file access. I have created a folder A, and under folder A created two folders B and C. And also created three users A, B and C. User A has access to all three ...
13
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3answers
464 views

Unexpected Bash completion of ~ on OS X

I pressed ~TabTab on the bash command prompt and got an unexpected set of completions. First it looked like all the folks in the /Users directory, and a lot more. Then I thought it was doing the ...
-2
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6answers
19k views

How to change to normal user in the command line when logged in as the root user? [duplicate]

I log into an system as root via ssh. How do I become the normal user or another user in the command-line?
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0answers
232 views

Unable to delete a user: user test is currently used by process xxx

I'm trying to delete a user: pgrep -u test ps -fp $(pgrep -u test) killall -KILL -u test userdel -r test But the last command always returns userdel: user test is currently used by process xxx ...
2
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1answer
60 views

Why does the `users` command return different users depending on whether I ssh or open a new terminal?

How does users define what users are logged in? If I ssh into a box twice, I see my username twice listed if I execute users. However, if I create a new login shell via sudo su -, I do not see root ...
1
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2answers
94 views

How to get rsync to complain if user not found

I'm moving files over from my old server to my new server. By the time I'm doing it for real (as opposed to just testing) I'll have all the "user" users (the non-system users, i.e. >= 1000) created on ...
1
vote
2answers
96 views

Running program using X while different user logged in with gnome shell

My situation is I am logged in to gnome with a user, and through the terminal I am trying to run steam as a different user with the error unable to open a connection to X. Both users can run steam ...
1
vote
0answers
34 views

Is it allowed to assign one range of subordinate IDs to two different users?

Is it allowed to assign the same range of subordinate user and group IDs to different users on the system defining the subordinate IDs? Please provide sources for your answer. The idea here would ...
0
votes
1answer
93 views

list users who are all created by current user in linux

I have set of users with root access.I want to know list of users who are all created by currently logged in user. From below structure if user1 login to system , how to list user's like ...
3
votes
2answers
181 views

How to update user/group settings of a running process?

Suppose I change some user settings like its initial login group or add it to a new group. I now can do su user and work with these new settings. But all the previously running processes will still ...
0
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0answers
236 views

How to Sync UNIX Passwords SAMBA4.x?

My current server is running Debian 8 jessie with Samba 4. Its purpose will be to host a simple file sharing server for around 100 people on Windows machines. I already have a collection of UNIX users ...
2
votes
2answers
387 views

Getting Group Names for List of Users

I have a text files with a list of users formatted like: name1 name2 name3 ... Calling the command groups gives the primary group name for that user. ex: bash$ groups name1 name1: ...
1
vote
2answers
61 views

Adding user to the group owning a folder doesn't give that user access

I have the following folders: drwx------ 4 ccote domain^users 4096 Apr 17 11:18 ccote drwxrwx--- 2 ccote ccote_jponchar_gnicolas 4096 Feb 20 10:58 ccote-jponchar-gnicolas ...
0
votes
1answer
510 views

Restrict user to do SFTP on the www folder owned by www-data group

I would like to create a new user with read/write privileges ONLY in the /var/www/ directory including all sub-directories. The /var/www/ is owned by a group called www-data. Best way to do it I ...
0
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0answers
49 views

Use sudo as login

I've picked up the habit of using sudo and disallowing root logins. In cases, sudo is integrated with GUI configuration tools that require it. Are there any serious efforts to replace login and ...
6
votes
6answers
22k views

How can I create and grant a normal user with root privileges?

I'm wondering how to create and grant a normal user (for example, named 'sybase') with root privileges? I found useradd, adduser, and passwd to be useful, but are there any other files to modify to ...
1
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0answers
162 views

Shell Script to change user shell

I am writing a script that would be invoked to change user shell. The basic requirement is that once user gets authenticated (e.g: thorough some web application) the script would be invoked to set the ...
0
votes
2answers
72 views

Setting Up SSH. Just need some understanding

My goal is to build a LAMP server on my arch linux laptop. The main reason is for a web server. The other reason is to learn about how all this administration stuff works. My setup is a laptop with ...
3
votes
2answers
620 views

How to loop over users?

How can I loop over all users in a shell script? I am writing a shell script to perform cleanup on a system. And if the script is run as root, I want to perform the requested actions in all users' ...
19
votes
5answers
1k views

Find files that a user can write, efficiently with minimal process creation

I am root. I would like to know whether a non-root user has write access to some files - thousands of them. How to do it efficiently while avoiding process creation?
0
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1answer
40 views

Killall processes under a user?

So, I know you can pkill -U <uid>, but whenever I've used this, my entire system crashes. Further investigation shows it probably is because I'm not matching anything, so it matches everything? ...
0
votes
3answers
331 views

How to restrict one user files to another user

On my machine there are user accounts. My question is how to restrict access to ones user files. Meaning no one else can access my files at all. How can I setup this restriction? How many root users ...
1
vote
4answers
1k views

How to “cat /etc/shadow” on an HMC?

hscroot@hmcserver:~> grep root /etc/group root:x:0:hscroot,ccfw hscroot@hmcserver:~> hscroot@hmcserver:~> ls -la /etc/shadow -r-------- 1 root shadow 5252 2015-05-06 19:36 /etc/shadow ...
1
vote
2answers
4k views

Add a new user steps for Oracle Linux 5

It's been over 10 years since I last used RedHat (which I believe that Oracle Linux came from). So I cannot remember the steps to create a new user, add them to the appropriate groups, set up their ...
2
votes
0answers
89 views

Is it possible to register “virtual” user/group IDs in a Linux system?

Is there a standardized mechanism in Linux which can be used to tie usernames to user IDs without actually creating a system account that can log in? It would seem something like this is possible, ...
21
votes
1answer
6k views

User permissions inside and outside of LXC containers?

I'm running some services inside of Docker LXC containers on my server and I'm beginning to actually do serious things with them. One thing I'm not clear on is how user permissions work inside and ...
4
votes
2answers
3k views

Find files created by a particular user

How would I go about discovering all of the files created by a particular user and display them to the screen? I've started a script that prompts the current user to enter the username of whom they ...
0
votes
1answer
170 views

create a linux user with create files and write permissions without sudo access

I want to create a user in such a way that it can create a file and update the contents of the file. useradd username Now for sudo, we can create username and linking to sudo like below: useradd ...
15
votes
1answer
22k views

Command to list PostgreSQL user accounts?

There are createuser & dropuser commands: createuser - define a new PostgreSQL user account dropuser - remove a PostgreSQL user account Is there a corresponding way to list the user accounts? ...
20
votes
10answers
6k views

How to create strong passwords in Linux?

I wonder how I can create strong passwords on Linux (for both normal and admin users) and if there are specific programs to do that.
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1answer
1k views

linux + send wall message only to the specific user

As all know , we can send broadcast message to all users on Linux machine But how to send message only to the specific user? For example #who rodegc pts/1 2015-05-04 04:23 (10.4.72.1) ...
20
votes
5answers
28k views

User-friendly command to list all users on Ubuntu system?

Is there a user-friendly command I can use to list users in a console on an Ubuntu system? When I cat /etc/passwd I get a hard-to-read list of users. It would be nice to see an alphabetized list, ...
2
votes
3answers
1k views

How to limit the number of active logins per user?

How can I limit the number of active logins per user? I've seen this on various servers before, and I was wondering how I could set this up myself. Perhaps in those cases, this was accomplished by ...
9
votes
4answers
1k views

Why are there many accounts? I'm the only user

I am running an Ubuntu 12.04 desktop system. So far I have only installed some programs (I have sudo rights). When I check the list of users on the system, I see a long list, like more than 20 ...
2
votes
1answer
1k views

Difference between adding sudo user with adduser or gpasswd

To add a new sudo user I believe I can call: # to create a new user sudo adduser newusername and to allow this user to use sudo I can do: sudo adduser newusername sudo or sudo gpasswd -a ...
1
vote
2answers
220 views

How to show all registred users and their groups with one command?

I was writing a test on basic Unix commands etc, and there was a question show all registered users and their groups with one command. At the same time I can't use getent command.
3
votes
0answers
28 views

Where do I put my web services? [closed]

I'm administrating my server since a few year but I'm looking for good practice like: What is the best place web service like my wordpress website files? My etherpad-lite instance? Which user shall ...
0
votes
0answers
29 views

When does the “/mnt/username_home_dir” appear?

The problem I have to solve requires the access to the /mnt/username_home_dir directory, but there is no such directory present, despite me creating a user and auto-creation of his /home/username ...
5
votes
3answers
1k views

How to add a user to a group in FreeBSD

How can I add an existing user to a group in FreeBSD? The command usermod does not work.
7
votes
1answer
689 views

When running 'su - username', pam_group doesn't add additional groups from /etc/security/group.conf but sshd login does?

I am having trouble determining why su doesn't behave as the PAM configuration would imply. In short, using su to become another user should load secondary groups according to PAM configuration, but ...
2
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4answers
301 views

Is there a way to show the history of the commands used in the shell?

If my Linux installation has three registered user accounts, is possible to check the history of the commands introduced by each one, and how?
0
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1answer
326 views

how to view failed login attempts?

I tried to view failed user login attempts since a specific time. But all methods I found by searching the internet does not work. I am using openSUSE 13.2. journalctl -a --no-pager ...
1
vote
1answer
111 views

Prompting for a password on sudo?

I'm creating users using Puppet. Here's the gist of what I'm doing in Puppet: user { 'ntkay': name => 'ntkay', uid => 10000, home => '/home/ntkay', managehome => true, ...