Questions tagged [administration]

Questions about Computer Administration

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5
votes
1answer
180 views

Logging off users with a countdown message

I want to do some maintenance on a server but in order to do that I need all users to be logged off. But I want to send I message (like shutdown do when you want to shutdown the system) to all the ...
0
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0answers
30 views

Error 5 - input/output error

I am trying to install Ubuntu (actually Kubuntu, but I've tried Ubuntu as well and it gives the same error) on my AMD Ryzen 5 3500u laptop, which runs windows perfectly. Every time I try to install ...
1
vote
1answer
126 views

How to configure policies/preferences for Chromium

I'm trying to enforce an URLAllowlist for my local Chromium (Version 89.0.4389.90, Snap) on Ubuntu 20.04.2 LTS. According to Google the policy should be available. The Chromium project discusses the ...
1
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0answers
30 views

Polkit Window doesn't allow user selection, how to pick different admin

I'm running the latest Ubuntu 20.04.1 It seems like polkit(I could be wrong here) isn't working as expected. When a regular, non-admin, user tries to do something that needs admin, they get a dialog ...
0
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1answer
200 views

an error occurred while extracting files

I get that error while extracting files with archive manager "an error occurred while extracting files" I am using Ubuntu 20.04 how to solve it?
0
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0answers
25 views

Best Open Source Package to manage Ubuntu 18.04+ and Apache

Working as a windows admin, i was now exploring Ubuntu 18.04. Since the server is all command line, i wanted to ask if someone had a experience in working with a open source GUI package that does all ...
1
vote
1answer
66 views

Updating Ubuntu 20.04 Server

I am running Ubuntu Server 20.04 on my Emby server. And periodically, I log in via SSH to run "sudo apt update" and "sudo apt upgrade" to keep my OS patched. I also periodically ...
2
votes
1answer
3k views

mariadb-server : Depends: mariadb-server-10.3 (>= 1:10.3.25-0ubuntu0.20.04.1) but it is not going to be installed

Recognizing that this is basically a FAQ: nicholas@mordor:~$ nicholas@mordor:~$ sudo apt --fix-broken install Reading package lists... Done Building dependency tree Reading state information......
0
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1answer
26 views

/home/jdoe doesn't appear after creating user named “jdoe”

I'm running the last version of Ubunutu on VirtualBox. Just learning the usermod command. I got a problem : when i type sudo useradd -d /home/jdoe jdoe or sudo useradd -D /home/jdoe jdoe or even sudo ...
0
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0answers
52 views

Adminstration and synchronisation of larger number of Ubuntu installations

I have to set up and maintain a pile of laptops (all the same hardware) with Ubuntu for an educational setting. So far, I set up the system on one computer (making all update channels automatic to ...
3
votes
1answer
2k views

Unattended/headless Ubuntu server with disk encryption - how to set it up?

I'm a long-time Linux user, but I'm not well-versed with the newer developments, esp. wrt Ubuntu and system(d) administration. I have a very old PC that I want to use for a file server, Mercurial repo,...
0
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0answers
143 views

How to generate a JSON report briefly summarizing system hardware?

The initial report sent to Ubuntu describing the system is no likely a summary pulled from lspci, lscpu and similar utilities. This is for bug reporting. Nonetheless, can I generate such a report, ...
0
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0answers
19 views

How to configure group settings for docker admin? [duplicate]

Listing docker containers: docker ps -a -q error: Got permission denied while trying to connect to the Docker daemon socket at unix:///var/run/docker.sock: Get http://%2Fvar%2Frun%2Fdocker.sock/v1.40/...
1
vote
1answer
124 views

User creation with limited access

How to create a user with access to selected applications installed in the system and read/write permission to only one directory in the file system? Say, for example, one wants to create a user dummy ...
0
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2answers
77 views

Systemd interaction with Minecraft server

As you do when you're bored, you set up a Minecraft server for you and your friends. I'm trying to make this constructive so I'm learning systemd. My question is if there is a way to interact with ...
0
votes
1answer
80 views

Why can't I see the sudoer permissions for another user in Ubuntu 18.04?

I am very used to using sudo -l -U <user> to check another user's sudo capabilities but since version 18.04 I can no longer see this. It always comes back blank. Is there some special setting I ...
0
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0answers
239 views

Cron job of new user high CPU usage

I have a fresh (3 weeks) install of Ubuntu server 18.04 LTS and about a week in I created 2 new users. If the cron systemd service is running, something is making my cpu really hurt, cause the load ...
0
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0answers
101 views

how to make environment variables persist?

For this bash script: #!/bin/sh export AccessToken=678 export AccessTokenSecret=wxy export ApiKey=abc export ApiSecret=123 How can I then ensure that printenv run at a later point in time will show ...
2
votes
2answers
2k views

how to use setenv to set an environment variable?

I've tried a few variations on setenv usage, including: thufir@dur:~/powershell/helloPSTwitterAPI$ thufir@dur:~/powershell/helloPSTwitterAPI$ setenv ApiKey="57647625454354365" Command 'setenv' not ...
1
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0answers
81 views

Active Directory with ubuntu compputer

How I open Ubuntu device by a user from active directory after joining this device to the active directory ?
2
votes
2answers
782 views

Is there a way to create a user with username “admin”?

Is there a way to create a user with username admin? When I tried to pick a username admin I got this error/ warning message. The username you entered (admin) is reserved for use by the system. ...
1
vote
1answer
1k views

How to open Nautilus as admin in Ubuntu 19.04

We have been cautioned not to use sudo nautilus to open Nautilus as root. Have not been able to download gksu for 19.04. Have also tried to install nautilus-admin to 19.04 without success. Is it ...
0
votes
1answer
507 views

Proper way to run Rider without Missing Templates

I'm using Ubuntu x64 18.04 and Jetbrains Rider IDE 2019.1.3 If i download rider with snap or download & extract tar.gz file; I can run rider with clicking app icon on Ubuntu's launcher / unity. ...
-1
votes
2answers
119 views

Is it possible to update, upgrade and administer Ubuntu via the GUI and never touch a command line?

Hi I use Debian and Fedora and have since 2007. It seems that Ubuntu has marketed and built itself to make Linux easier and more user friendly for daily use. PROBLEM: I am planning to use Linux in ...
0
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0answers
888 views

New restart error? “Authentication is required for rebooting the system while an application is asked to inhibit it.”

Okay, so this is a follow up question to my last one, about my “issue” installing VirtualBox off the Software Center. I did what I was asked to with the Software Center, as it looks like VirtualBox ...
24
votes
2answers
15k views

How can one restrict the number of CPU cores each user can use?

We have a computer whose CPU has 32 cores and it's going to be used for running programs by a few different users. Is there any way to restrict the number of cores each user can use at any time so ...
2
votes
1answer
900 views

What is the best cgmanager alternative for Ubuntu 18.04 LTS?

I was using package cgmanager to automatically manage processes into memory cgroups in Ubuntu 16.04 LTS environment. However, I did a fresh install of Ubuntu 18.04 and package cgmanager is no longer ...
3
votes
2answers
10k views

Ubuntu 18.04 ethernet not configuring automatically

I have a laptop with Ubuntu 18.04 Desktop installed. The system is eager to configure and operate WiFi, but I need a wired connection because my adapter is slow compared to the 1000BASE-T Ethernet. ...
2
votes
2answers
11k views

How do I change the boot partition from one drives partition to a different drives partition?

I have two hard drives each with one primary partition, each with their own Ubuntu 18.04 install sda1 40gb sdb1 512gb The only purpose of sdb1 is to hold compressed backups of sda1 Normally the ...
1
vote
1answer
206 views

Install minimal Ubuntu like AWS EC2

Is there any way I can install a minimal version of Ubuntu (GUI-less) so that it would closely resemble the Ubuntu set up you get when you get a standard AWS EC2 system? is there a better choice that ...
2
votes
1answer
1k views

How do I check that my users and groups are correct?

I have many Ubuntu-powered devices around me. As far I know /etc/group, /etc/passwd, /etc/shadow are created during installation, so they do not belong to any package: $ dpkg -S /etc/passwd dpkg-...
0
votes
1answer
453 views

Cannot sign in my laptop after sudo admin problem in terminal

Whenever I open the terminal I'm Ubuntu 18.04 To run a command as administrator (user "root"), use "sudo <command>". See "man sudo_root" for details. After that, I can't get into any of my ...
1
vote
0answers
998 views

change permission of directory and all its sub-directories/files recursively

I have search around but can't find the correct answer. How do I change the permission of a directory and all its sub-directories/files then also when a user creates a file or directory this must ...
1
vote
0answers
100 views

Prevent AD users changing the background in Ubuntu 16.04 with Unity desktop [duplicate]

I run a high school computer science lab with 17 desktops running Ubuntu 16.04 with the standard Unity desktop rather than Gnome. The users log in with Windows Active directory IDs and have standard ...
15
votes
7answers
15k views

Is there a GUI tool for managing systemd on Ubuntu 18.04 (Bionic Beaver)?

Is there a GUI tool for managing systemd on Ubuntu 18.04 (Bionic Beaver)? I want to be able so see the status of services and/or units (and/or whatever else systemd calls them). Ideally, I could ...
0
votes
0answers
37 views

Ubuntu 16.04 and Chrome managment

First of all, I'd like to greet everyone, it's my first post on this forum. I got two questions about Chrome browser in Ubuntu 16.04 (Xenial Xerus). I need to find out how to manage it from Terminal ...
0
votes
1answer
718 views

share virtualbox os with multiple ubuntu users

i have an ubuntu install with user account of myself and my brother sister father. recently install windowsxp on virtualbox on myside. how can i let my other users (brother sister etc ) to have access ...
0
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0answers
25 views

Share one of the main linux directories on server for all network clients

I'm trying to setup a network that I share /usr folder on my server and use it for all my clients so I don't need to update my /usr/lib for all clients every time and just updating server for all the ...
1
vote
1answer
135 views

leafnode fetchnews: received bogus greeting (498)

How do I run some sort of diagnostic to check the connection to an upstream leafnode NNTP server running on the same network? thufir@arrakis:~$ thufir@arrakis:~$ telnet 192.168.1.7 119 Trying 192....
1
vote
2answers
1k views

How to centrally administer Ubuntu servers [duplicate]

I'm curious as to whether there is a convenient way to push updates to multiple Ubuntu servers from a central location instead of remoting into each one individually and manually updating them. Bonus ...
0
votes
1answer
201 views

System Adminstration

I have lots of instructions for various things that tell me to choose the Administration function from my System menu. It doesn't exist. What should I do?
1
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0answers
116 views

How to prevent cached temporary files from being removed?

I have Ubuntu14.4 on my machine, and also have downloaded Android-SDK to program for Android. When I install some package in Android-SDK, it does three things: first it downloads the package into a ...
4
votes
3answers
7k views

How should one name “admin” user?

The ubuntu has user "root" of unlimited privileges, apparently, it exists to not be used. The "admin" is already taken by something. So, assuming the computer is not connected into any sort of ...
0
votes
1answer
1k views

How to change shutdown/Suspend/ off the main panel in Ubuntu MATE 16.04

I want to log off and then shut-down my computer and those buttons are deprecated for me, I would like to change that Power button for log-out instead and the menu items too. How can I achieve this ?,...
0
votes
1answer
46 views

How to create an admin account after my admin account got deleted

My admin account has been deleted. This was because I had to use the dell recovery after a problem after one of the updates provided by Ubuntu. Now I only have the guest account. How do I go ...
6
votes
1answer
6k views

How to uninstall all trackers (tracker-miner: fs, apps)

How can I uninstall this programs in Ubuntu 16.04? Permanently from being installed by updates.
2
votes
1answer
458 views

Can Shutdown/Suspend/ be taken off the main menu in Unity?

I tried to take a screenshot of the main manu power icon. My main goal is to have these actions on the login screen only, leaving the log out action as the mediator. I'm currently using 16.04 64 bits
1
vote
1answer
156 views

How to make the TTY use my entire screen resolution

I've been using the TTY (CTRL + ALT + F1) and I need it to have full screen resolution. Is it the configuration for the Kernel or for SH I don't have any ideas.
5
votes
2answers
10k views

Job for fail2ban.service failed because the control process exited with error code

I have installed fail2ban on my server (OS: Ubuntu 16.0.4 LTS). When I try to start it, I get the following error message: Job for fail2ban.service failed because the control process exited with ...
16
votes
2answers
64k views

Which is the process using apt-get lock? [duplicate]

I don't have any package installations running, yet I get the following error when I try to install a DEB package. I thought about rebooting the system but that could corrupt the database. And it has ...