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

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1
vote
2answers
90 views

how to list users in a group and their passwords

How do I view a list of users in a specific group and their passwords or attributes? I know to use cut -d: -f1 /etc/passwd But this only lists users.
1
vote
1answer
42 views

which command will give complete user creation in RHEL?

I want to create a user in RHEL 6.5 and i have three commands (1)useradd (2)adduser (3)system-config-users which one will give the complete user creation.
1
vote
1answer
101 views

How to give user access to specific folder in home directory

I'm trying to set up a 'deploy' user on my VPS (running CentOS 6 and cPanel) which needs to have access to a specific folder from another home directory: /home/nazeem/public_html/staging. I've ...
1
vote
0answers
47 views

Linux user ssh connection disabled after execution of setfacl command

I have very little linux administration experience, after searching a lot stuff online, finally I decided that I must hope that someone helps. The problem is, I needed to share an account with a ...
20
votes
2answers
63k views

How can I change a user's default group in Linux?

Being new to Linux administration, I'm a little confused about the following commands: useradd usermod groupadd groupmod I've just finished reading the user administration book in the Linux/Unix ...
4
votes
2answers
2k views

What is nobody nobody user and group?

On my server (Synology DS212) some files and folders have nobody nobody users and groups. What are the characteristics of this user and group? Who can write of read this file? How can I change it ? ...
2
votes
1answer
105 views

How to set up users, ownership and permissions across local and remote servers?

I've been learning the Linux OS over the last year or so and I am still very confused on how permissions vary from different configurations. I am trying to set up my local development environment and ...
3
votes
4answers
6k views

What command should I run after making changes to /etc/passwd file

I have made some changes to /etc/passwd file ,now I wanted to see if the effect of changes taken place or not .What command should I run for that. For example after making change to ...
2
votes
1answer
576 views

With NIS users, how to find out which users are currently logged in?

I'm using a NIS server to control 100 clients. I'm using NIS for centralized authentication and NFS to share the home directory. The main problem I'm facing is that I cannot find out which users are ...
5
votes
2answers
4k views

Another account with same uid as root gets prompted to set new password for root, not itself

After upgrading the os from 5300-06 to 5300-11, this weird behaviour happened. My system had another unix account, let's call it "abc", purposely configured its uid to 0 for working as a root with ...
4
votes
3answers
1k views

Restrict user access in linux

I'm creating a new user with the following details: useradd -d /var/www/html/testuser.com -G users testuser I proceed by creating a new password for the user and attempt to login via SSH, I land on ...
7
votes
3answers
17k views

Proper way of changing username in Ubuntu or any linux

I am using Ubuntu 12.04 and made some customization. I will also make it a new iso which is customized ubuntu. What I want to ask is how can I change my username. There are plenty much configuration ...
0
votes
1answer
146 views

Why does transmission adds a new user to the system?

When I installed transmission, I've seen here that I need to change the ownership of some groups to able this to work with my raspberry pi. First of all: why does transmission adds a new user to the ...
0
votes
3answers
90 views

Adding new user in Linux

I created a new user in Linux using useradd connectweb and I see the following in the /etc/passwd file connectweb:x:1002:1002::/home/connectweb:/bin/sh but when I try to navigate to the folder ...
8
votes
3answers
16k views

Can I search bash history across all users on a server?

I want to see all bash commands that have been run on a Linux server across multiple user accounts. The specific distribution I'm using is CentOS 5.7. Is there a way to globally search .bash_history ...
0
votes
1answer
1k views

SCP without password prompt using different username [duplicate]

I have 2 servers, Server1 and Server2. On Server1 I have a user named user1. On Server2 I have the user named user2. I need to be able to write a script that runs on Server1, which will scp some ...
2
votes
3answers
466 views

Why is the home directory not created when I create a new user?

I created a new user (testuser) using the useradd command on an Ubuntu server Virtual machine. I would like to create a home directory for the user and also give them root provileges. However, when I ...
0
votes
1answer
35 views

What should file permissions be set to in order for an FTP editor to work?

I installed git on my server and cloned my development repository using the root user. The permissions appeared to have been set to: Files: -rw-r--r-- Directories: drwxr-xr-x I previously had ...
3
votes
1answer
42 views

Are there any user guaranteed to exist on the system

Beside the root (which I guess IS guaranteed), is there any other username guaranteed to exist on Unix system? Linux system? Fixed UIDs for those users? If not guaraneed, are there at least any ...
1
vote
0answers
127 views

Stop all processes by a user: children of supervisord are still running

I'm trying to delete a user but it keeps saying that user is currently used by process ID x I tried everything here and here, nothing works, how do I kill all the process by a certain user in order ...
2
votes
1answer
11k views

Changing user and group ID system wide (including file system attributes)?

(this question possibly related to Linux: simulating/masking user ownership upon mount of 'external' partitions? - Stack Overflow) I typically use Ubuntu (currently 11.04) as my desktop OS; let's say ...
4
votes
3answers
14k views

Restrict FTP user to a directory

Sorry if this is an obvious question, but I don't have a lot of knowledge about this sort of thing, and I've googled for hours, nothing worked. So on a Ubuntu 11.04 server, I want to restrict a user ...
4
votes
3answers
221 views

View list of users

I would like to see how many users are on my system. How could I view a list of all the users on the system?
1
vote
1answer
54 views

$USER not set ssh

On some of my debian wheezy servers there is a global variable $USER that contains the current logged in username and on some this variable is not set immediately at login. How do I set $USER so it ...
3
votes
1answer
52 views

Workstation-like environment across Debian clients

At our university we have a workstation-like system. It's windows XP (or Win-7 on some machines) and you can sit to any computer and log in with your credentials. It seems to be pulling some of your ...
2
votes
4answers
83 views

How to find out which package a user belongs to?

In Linux distributions, some packages create user accounts. How can I determine which package created a given user? I want to know specifically for Fedora and Ubuntu, but answers for other ...
8
votes
1answer
990 views

Is there a tool(!) to list assigned subuid and subgid values for users?

The question is basically in the title. usermod -v (--add-sub-uids) and usermod -w (--add-sub-gids) can be used to manipulate the subuid and subgid ranges for a user account, but there appears to be ...
2
votes
4answers
341 views

Moving a directory from a user to another user, keeping the correct permissions

Let's suppose we have to users: alice and bob. Now Bob wants to move Alice's ~/Documents directory into his home folder. What's the best workflow to do that, updating the permissions (from Alice to ...
2
votes
1answer
246 views

gnome “switch user” shortcut or command line

Is it possible to switch user of gnome desktop environment by single command or any shortcut key, in centos 6.0, or Can we create shortcut key? I found "fusa", but still unable to install it.
1
vote
0answers
61 views

How does autoconfig/autodiscover work?

I have a server with OpenLDAP/Kerberos authentication with 7 desktops/clients. Manually generating a new user and configuring a new profile (gnome, evolution mail accounts, evolution calendar/tasks ...
0
votes
1answer
48 views

Sudoers - group managing and reboot/shutdown

I've got a group (let's say name "group1", ID = 1234) and a user (let's say name "user1", ID="4321"). I want to do two things: I want that user to change passwords from other members of that group, ...
2
votes
1answer
130 views

Use current user environment variable in sudoers file

I want some of my users to be able to change their password with sudo command because at the time they log in, they are passwordless (ssh keys connection). My users have no password (and this is ...
0
votes
3answers
259 views

/etc/passwd permissions and GECOS field

The default permissions on Ubuntu (or even some BSD) distributions for the /etc/passwd file are 644. It is pointed out in questions like this that /etc/passwd is a sort of user database and it is ...
0
votes
1answer
53 views

Multiple users' access to directory

I'm running Arch Linux. My website's files are in /home/user/www/ directory. Another users also have their website's files in /home/foo/www/ directories. Now if I want to change something on their ...
1
vote
0answers
24 views

How to create a master user for creating default settings in production programs?

I am interested in creating a master user whose default program settings are inherited by later users, like a template user. I know this used to be done in multiple-user Unix terminal settings such ...
2
votes
2answers
55 views

Limit user from viewing files he doesn't own

Normally, file such as /etc/passwd have the permissions 644 which means that everyone has a right to read the file (4) but only the owner has a right to read it and write to it (4+2=6). I want to ...
1
vote
1answer
42 views

What if I add a user to a supplementary group?

I am using debian 7.0 and I added "debian-transmission" to the group "pi" with: usermod -a -G pi debian-transmission I made this change because transmission was not able to write the pi mounted ...
1
vote
1answer
370 views

nginx - userdir with user permissions

What I want to do is have the usual server running user files like this: http://users.example.com/~user1/stuff.php which would be stored somewhere in /home/user1/www or something like that, but ...
9
votes
1answer
15k views

How do I set the user of php-fpm to be php-user instead of www-data?

I am using php-fpm on debian with nginx for php5 support. I would like to have php-fpm to be under the user&group php-user instead of www-data. I thought the init.d script would have the user ...
2
votes
2answers
3k views

assigning read/write privileges for a folder to a user in CentOS 7

I am logged into a CentOS 7 server as root. I created a folder /somefolder. I want someusername to be able to write to that folder via scp from a remote computer. What command should I run so that ...
1
vote
3answers
7k views

Get environment variable of other user [closed]

Is there a way I can see the environment variable of an other user? I want to do that as root, so permissions won't be a problem I guess. For the user himself, I use echo $PATH or set | grep PATH ...
9
votes
2answers
7k views

Force the owner and group for the contents of a tar file?

I would like to create a tar file with contents belonging to an owner:group pair who do not exist on the system from which the file is being made. Here's the direction I've tried: tar ca ...
2
votes
3answers
632 views

Command for finding users who are not logged in

Is there any command that can find the number of users that are not logged into the system ? I am trying to write a shell script that counts the number of users who are logged in and number of users ...
0
votes
0answers
66 views

Create a user who cannot explore system directories

I have a Centos 6.5 machine. I add users with useradd username. These users cannot browse other users directory, but they can browse all the OS filesystem starting from / and see configuration, ...
1
vote
1answer
238 views

List connected via SSH users [duplicate]

I checked this answer and this option - it is good, but it requires sudo rights. I need that this command may be performed by any user, for this reason I am using next command ps -ef | grep sshd: | ...
1
vote
1answer
65 views

How can I see the password of another user in Linux?

I made 4 users on my server, but unfortunately I changed the password of the "first" user while configuring the server, but I don't know how I changed it. How can I see the password of users in root?
37
votes
5answers
52k views

Disable a user's login without disabling the account

Let's say I create a user named "bogus" using the adduser command. How can I make sure this user will NOT be a viable login option, without disabling the account. In short, I want the account to be ...
0
votes
1answer
438 views

sudo not working on debian

Why sudo command is not working on my fresh debian installation. I had this error after entering my root password: Sorry try again .. or / and incorrect password attempt EDIT : In my ...
1
vote
1answer
109 views

How do I know if I'm in a jail, container, snapshot, etc. environment? [duplicate]

I received a machine (Ubuntu 12.04 server) from a coworker when he left the company. I created my own user as sudo/admin and used the machine for months via SSH. After rebooting for the first time ...
10
votes
3answers
5k views

How can I make a user able to log in with ssh keys but not with a password?

I would like to create a user and have no password. As in you cant log in with a password. I want to add keys to its authorized_keys by using root. This is for my automated backup system.