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

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7
votes
1answer
697 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
votes
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
votes
1answer
336 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, ...
3
votes
2answers
7k views

smbpasswd failed for new Samba install on fresh Ubuntu 11.04

I've installed Samba on a fresh Ubuntu install. I run the command sudo smbpasswd -a someuser New SMB password: Retype new SMB password: Failed to add entry for user someuser. I've read that you ...
2
votes
0answers
124 views

Catch/diagnose user process being killed - Inexplicably logged out automatically

Context: I'm using bash in Mac OSX Yosemite. Problem: I'm executing a (python) script that I expect to use alot of resources and take a few hours to run, redirecting stdout and stderr to a log file. ...
6
votes
2answers
541 views

rsync doesn't preserve directory ownership even with -a

I use this rsync invocation to backup my home directory: rsync -aARrx --info= --force --delete --info=progress2 -F "$USER_HOME" "$BACKUP_MNTPOINT" rsync man page says that -a implies -g and -o ...
-1
votes
2answers
205 views

Prevent autologin to the admin account

I am a new user of Linux. I have both window 7 and Ubuntu 14.04. For my family and friends, I make Guest account but when I restart my laptop and operates with Windows 7 then options are comes for ...
2
votes
2answers
619 views

Any concerns with using high UID numbers (3000+) on RHEL5+?

The legacy systems has UID numbers up until the low 2000s. In implementing a new user management system, I am looking into options to avoid UID collisions. One option is to just have a list of UIDs ...
1
vote
2answers
610 views

dialout group missing

I have debian8, (Jessie) and I am trying to add a user to the dialout group. Alas, that group doesn't exist. I would prefer not to add the user to the root or sudo group. what should I do? ~$ ...
2
votes
1answer
101 views

Why am I seeing a number as owner / group instead a name?

CentOS 6.x / OpenVZ Recently my VPS provider moved my OpenVZ container to a new server. After that move, I've noticed that files/directories for one of my user accounts show an odd owner / group. ...
-2
votes
1answer
88 views

Print 25 usernames on the system starting in reverse alphabetic order. Print only the usernames,

how to Print 25 usernames on the system starting in reverse alphabetic order. Print only the usernames, nothing else. You should get the information from the /etc/passwd file.? in UNIX Command
-3
votes
2answers
106 views

How to Find the number of password entries that are on the server? in unix [closed]

Find the number of password entries that are on the server? in UNIX
4
votes
2answers
629 views
6
votes
2answers
2k views

How can I start a 'screen' session as non-root user

Is there a way I can open a new 'screen' session on my RHEL box as a non-root user? When I try to open a new screen using the 'screen' command as a non-root user, it fails and I get the following ...
2
votes
2answers
157 views

How does one permissibly access files on non-booted system's user's home folder?

I have a dual boot system with Mint 17.1 and Centos 6.6 I want to access a file in my CentOS user's home directory from Mint. (I cannot boot CentOS right now.) What is a clean/standard method for ...
1
vote
1answer
51 views

Linux Create user with specials login options

Hello i need create some users with special privilegies that will be: A user that can only login with ssh, no local, it can do anything in pc search, find, etc like a normal user but only with ssh. ...
0
votes
1answer
34 views

Is there any way of knowing who [including remote users] can access a paticular file / folder?

In Windows you could enter file properties and see which users have an access to a patricular files. [Including remote users / groups that are part of your domain] In unix when you enter properties ...
1
vote
1answer
520 views

How to delete remaining files of removed user?

I know deleting user with userdel username can cause information leakage and other security issues (as tutorial book says, administrator should delete user with -r option). But i tried it to see what ...
3
votes
1answer
329 views

What are the default openSUSE 13.1 user groups?

I just installed openSUSE 13.1, and I can't even start X on boot. I have to switch to another tty and type startx (after I set suid for xorg). On top of this, I can barely do anything without root ...
1
vote
2answers
200 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
82 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
442 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
67 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 ...
23
votes
2answers
89k 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 ...
2
votes
1answer
202 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 ...
4
votes
4answers
12k 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
961 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 ...
6
votes
2answers
6k 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 ...
5
votes
3answers
3k 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 ...
0
votes
1answer
259 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
124 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 ...
10
votes
3answers
26k 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
12k 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 ...
5
votes
3answers
5k 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
76 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
47 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
247 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
12k 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
284 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
130 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
58 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
140 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 ...
12
votes
1answer
2k 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
546 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
406 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
139 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
92 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
234 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
645 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 ...