Questions tagged [users]
Anything related with user accounts and user management on Unix-like systems.
1,185
questions
0
votes
0answers
16 views
How can I set wallpapers for other users without logging in to their accounts?
I am working on a bash script that creates users from the root account. I would like to set the background for those users without logging into their account and changing it manually. I am running ...
18
votes
1answer
2k views
Why run a service as a system user?
I have a general question about the UNIX world.
I am currently running Ubuntu at home and installed Transmission on a device and it runs as and saves files as the transmission-debian user. I am ...
2
votes
2answers
50 views
See who is current user in a ssh terminal session in FreeBSD 12
When using a terminal session via ssh to a FreeBSD 12 server, how can I verify the name of the user in that session?
1
vote
1answer
23 views
In RHEL7 is it possible to allow only some users to create ssh tunnels
I want to setup a RHEL7 host that will allow a few people to ssh in. Let say 10 people will be able to access the box via ssh. Of those 10 people I only want 3 to be able to create a tunnel to other ...
0
votes
1answer
35 views
How to restrict use of SFTP feature “escape to local shell”?
In order to make a file server with restricted access, I set the following configuration:
On the file server (Debian Wheezy)
Create a user data-reader without home, without shell, in the group named ...
1
vote
0answers
21 views
How to create user who will not be using /etc/passwd for authentication?
I want to add a user to my Ubuntu who will be authenticated using SQLite or another database. I don't want to use /etc/passwd file. How can I achieve it?
0
votes
0answers
20 views
What is special in Fedora Mate spin for the user name “skype”?
I can create a user with any user name and successfully log into Mate, but if I create a user name skype it immediately logs out.
I blew away and re-created user names skype and user1, user2 etc ...
2
votes
0answers
26 views
Overlapping local and LDAP usernames
We have several RHEL 6/7/8 machines where user authentication is done through LDAP.
One of our sysadmins would like to set up local accounts for some users on some machines, with the local username ...
2
votes
3answers
117 views
Set up users, during install, based on directories in /home
Are there any Gnu/Linux installers that will look at an old /home partition, to set up the users based on the directories in the root of this partition?
So if I install a new Gnu/Linux, and keep my ...
2
votes
0answers
35 views
User listed in group but not in getent passwd
On a specific machine with both local users and LDAP users, there is a user that is listed under getent group foo (let's say the user jdoe is listed), but when doing getent passwd jdoe I get no output....
1
vote
1answer
24 views
Primary and secondary group of a user
Why is it that group1 which should be user's primary group, is in the subgroups? The user is not even part of group1 in /etc/group file.
# id user
uid=1000(user) gid=1111(group1) groups=1111(group1),...
0
votes
0answers
10 views
Grant permission to ftp user in other directories
I need a user that I created in my ftp server to access other directories. Example, the tech user was created in the following way:
useradd -s /sbin/nologin -c "FTP user for mail accounts" -G mailg ...
1
vote
1answer
31 views
If I run a command with `sudo` is it still “invoked by an ordinary user”?
Quote from manpage of davfs2.conf for mount.davfs:
There is a system wide configuration file /etc/davfs2/davfs2.conf and user configuration files ~/.davfs2/davfs2.conf. When mount.davfs is ...
1
vote
0answers
31 views
logging for proxycommand
I need to logging users that connected throw bastion host using proxycommand,
I have used next command:
$ ssh -i ~/.ssh/key.pem user@ip -o "proxycommand ssh -W %h:%p
user_bastio@bastion"
In ...
1
vote
1answer
34 views
Linux user with numerical name found and can't find who is it
Simple and fast question:
kevin@pc:/usr/lib/jvm$ ls -l
total 8
lrwxrwxrwx 1 root root 25 Feb 20 17:31 default-java -> java-1.11.0-openjdk-amd64
lrwxrwxrwx 1 root root 21 Apr 23 20:34 java-1.11....
0
votes
0answers
29 views
Empty /home/user folder for NEW users [duplicate]
I am new on Linux so I don't know if this is a normal behavior or not. I am reading a bit about how to manage users.
The thing is that when I create a new user using the "adduser" command it creates ...
4
votes
3answers
251 views
Run script with arguments as user
I am trying to make sure when a script is run it is run as a specific user without having to su to that user before the script is run. Also the script is run with a couple of flags for example
./...
0
votes
1answer
42 views
Command to list all user accounts as well as their last logged in information?
I am using this line of script to return back the list of my user accounts on a Mac via Terminal:
dscl . list /Users | grep -v '_'
While it returns the list of all user accounts, I also need for it ...
0
votes
0answers
27 views
How to reload users daemons as superuser?
I'm writing an installation script that should do the following just after package installation:
systemctl --user daemon-reload
systemctl --user start ${@}"
The problem is that the installation is ...
0
votes
0answers
17 views
Should systemd service unit's have different names than daemon usernames
I often executed the following command and have always thought in my head "give me the logs for user httpd".
journalct -uhttpd
Wait a second. I don't have a user httpd, only apache. And upon ...
0
votes
0answers
9 views
NOEXEC flag prevents users to do /bin/su
I need to prevent the shell escapes in our systems.These are the sudoers file entries.
Cmnd_Alias OD_DBA_2 = \
/bin/rm /*/apps/*, \
/bin/rm -[a-z]*...
1
vote
4answers
82 views
Check which users have specific password
I'm trying to remove all default user passwords across a bunch of servers with ansible. Firstly, I'd like to output the name of every user whose current password is foobar. How can I achieve this?
My ...
0
votes
2answers
27 views
System service running as user is terminated on logout
I have a system service that is executed for selected users. Name is serv@<uid> (<uid> is UID of the user). I want to share user's resource limits with the service (place it into user-<...
0
votes
0answers
9 views
gVim under other user using gksudo
I want to start gvim as different user (bar) using .desktop file.
When I run gksudo -u bar gvim, nothing happens. (No stdout/stderr output.) Why this command does not start gVim? I tried running it ...
1
vote
1answer
28 views
NOQUEUE: SYSERR(www-data): can not chdir(/var/spool/mqueue-client/): Permission denied
Here's the folder:
drwxrws--- 2 smmsp smmsp 4096 May 25 22:47 mqueue-client/
So I did this...
usermod -a -G smmsp www-data
# groups www-data
www-data : www-data smmsp
But I still get this error ...
0
votes
1answer
21 views
How to give permissions for all users to execute a program installed by sudoers?
I installed a Perl program with many external dependencies in /opt/Soft (ubuntu 18 ) using sudo su at first step. Once installed, I exit the "sudo su" mode I could not anymore execute the program as a ...
0
votes
0answers
16 views
Can't manage user accounts after using LDAP
I've added a ubuntu machine as an LDAP client by following the below steps. But now when trying to access my user accounts from the user accounts app I can't find any user profiles or information as ...
0
votes
1answer
51 views
How to give permissions to all files of a server in a user without making him the owner
Recently I had a project which was about ssh connection with an Amazon EC2 server. In this project I was asked to create a user than can have read permissions -only- to the whole server (all files in ...
0
votes
0answers
10 views
creating a chroot sftp user connecting to a different directory
I created a user and added it to its own group
at the bottom of my sshd_config i added
Match Group sftpusers
ChrootDirectory /var/dir1/dir2
ForceCommand internal-sftp
However, it gives ...
1
vote
2answers
140 views
Does using non-root user without password makes system more vulnerable?
Let's say somebody sitting under user (non-admin, not root), but he didn't set up any password for it, only superuser/root has password. Is it bad practice (in context of remote access to a desktop ...
-3
votes
1answer
91 views
Script to prompt for the number of users; check how many files they have in their home directory and send a list of those users to the standard output [closed]
My homework asked me to
The users are storing way too many files in their home directory and you would like to notify the top 5 offenders. You might want to run this script again for more or ...
4
votes
2answers
48 views
list files with specific group and user name
Do you know a command to list all files on the server with specific group and user name?
I am looking for something like this:
find -ls -group 'groupname' && find -ls -user 'username'
this ...
0
votes
0answers
19 views
How can I run sqlplus as nobody
I have a bash script (/bin/foo) where I export PATH, LD_LIBRARY_PATH, ORACLE_HOME, ORACLE_SID and I can run sqlplus (Oracle SQL client) from the script, but when I try to run it like this
sudo -u ...
2
votes
1answer
94 views
User not listed in /etc/passwd
As far as I thought, the list of users for my system can be printed in the terminal with:
sed 's/\([^:]*\).*/\1/' /etc/passwd
But I have noticed that when I use
top
In the USER column, my user ...
0
votes
2answers
106 views
Open a tmux session and then change to different user without password prompt
I am trying to create a script that opens a new tmux session
and then runs a command inside that tmux session as a different user.
The purpose of this is to create a new tmux session for a game ...
1
vote
2answers
105 views
Lubuntu 19.04 for System Tools > Users and Groups
On Lubuntu 18.04 I would add users via System Tools > Users and Groups. How is this done on Lubuntu 19.04 as there is no "Users and Groups" under "System Tools " as there is in 18.04.
18.04:
19.04:
1
vote
0answers
35 views
su - <username> hangs if I added a line in /etc/bashrc
I added this line to /etc/bashrc file
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/opt/glibc-2.14/lib
I log in as root throw SSH normally, but if I wanted to change my user by
su - myusername
the ...
0
votes
1answer
57 views
Does changing Linux username give any problems?
I've installed Linux Mint on my old laptop.
I created a username with the temporary use in mind so it is not that good name and I want to change it.
I know how to change username and rename the ...
0
votes
0answers
8 views
How to prevent non-sudo-installable Conda app from being able to modify itself (and other such apps too)?
There is a Conda package manager that can create independent virtual environments. But the most economic and default way to use it is to let it create hardlinks for packages used in several ...
7
votes
2answers
228 views
different output for groups and groups USERNAME after adding a username to a group
I stumble across a weird behaviour today.
After adding a user to a new group like so :
# gpasswd -a test myuser
then connecting to a new bash session, here are the result for groups and groups ...
3
votes
0answers
55 views
Can I create a linux server user without creating a complete new account?
I've setup a Webserver with a GIT branching model. Now I want to create something like a technical user on my server. This user should not have an own account (I just need the user to to execute git *,...
0
votes
1answer
19 views
How can I predefine a path for a user logged in via SSH?
I'm looking for a way to set something like a default path for a user on my server. So for example I've the user XYZ. When I login now with this user on my server, I want to be directly in a defined ...
0
votes
1answer
22 views
FTP not giving permission for actions for user that has permission
I have a user on my server (Debian) that I will be using for FTP. For a given directory on the file system, he is able to create directories/create files.
myuser@debian-server:/storage$ su ...
1
vote
2answers
66 views
How can we add multiple users to a group by single command in Linux?
I have to use
usermod -G groupname username
everytime to add user to group.
Isn't there any way to do it by single line like
usermod -G groupname user1,user2,user3
0
votes
0answers
124 views
No supported authentication methods available - connecting to FreeBSD using PuTTY
I have created an EC2 instance that runs FreeBSD, and I can log into it using my SSH key and the default user ec2-user. I logged into it, and switched to root using su. I then created a personal ...
0
votes
1answer
98 views
A separate partition for a user's /home directory?
Is it possible to separate /home/$USER for one particular user into a separate partition in Arch Linux x86_64 with the 4.19.31-1-lts kermel?
I want to encrypt one user's /home directory, but I prefer ...
6
votes
1answer
284 views
Added a new user on Ubuntu, set password not working?
I created a new user:
$ sudo useradd -m Ari -p pass123
But when I went to login it said the password was incorrect, I know it's correct because I saved the command line log as a text file.
Other ...
0
votes
1answer
185 views
Valid special characters allowed in a CentOS 7 username?
I'm trying to figure out how CentOS 7 identifies what is considered a valid character in a naming convention when a user account is created.
I was playing around with useradd to confirm my ...
9
votes
1answer
727 views
Different outputs for `w`, `who`, `whoami` and `id`
In command line platforms online, like for instance the one on Codecademy, when I run
for cmd in w who whoami id
do
echo $cmd
$cmd
echo =========================
echo " "
...
2
votes
1answer
47 views
What is the fastest way to create multiple thousands of users on a system?
I need to create multiple thousands of users on a linux system. Currently I use the newusers command with a file as the source for all the users. The file contains around 10000 users. Running
$ ...
