Questions tagged [ubuntu]

Please don't use this tag just because your system is running Ubuntu. Use it _only_ if your question is somehow specific to Ubuntu only. Note that https://askubuntu.com is specifically dedicated to Ubuntu questions.

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13 views

Can i make the LightDM greeter wider?

I am using LightDM on my work laptop (under Ubuntu 18, to log in to Cinnamon). We use LDAP (well, Active Directory) for authentication; when i am in the office, my password is checked against the ...
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1answer
25 views

Ubuntu won't reply on same interface

I have an Ubuntu 18.04 (i.e. NetworkManager / netplan / systemd-networkd) VM which was working nicely until I tried adding a second interface. I initially had problems with the DHCP still running ...
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39 views

broken Ubuntu after failed release-upgrade

I recently attempted a do-release-upgrade, which unfortunately was interrupted during the process (it is a remote machine, that I can only access through ssh), and I now encounter many broken ...
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1answer
19 views

resolv.conf on host overwritten every time a Docker container is started or stopped

Every time I start or stop any Docker container, the /run/systemd/resolve/resolv.conf file on the host (Ubuntu 19.04) gets overwritten with: # Generated by dhcpcd from enp30s0.dhcp # /etc/resolv.conf....
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22 views

How to remove multiple HTML files in batch

Ubuntu 16.04 LTS, Gnome version 3.18.2 My desktop filled with multiple html pages (GHex editor output). binary00000000.html binary00000001.html binary00000002.html ... binary00043310.html How to ...
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8 views

how to create 3-way handshaking packets per second?

I created 3-way handshaking packets (syn,syn+ack,ack) with scapy. but I want do this for example 10 connections per second. how can i do that?
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17 views

ldap home directory permission issue on debian/ubuntu

I have joined the debian9 machine to microsoft AD when i run su - test1 it create the home directory but with below permission. root@debiantest:/home# ls -ltr drwxr-xr-x 2 test1 data 4096 Sep 18 22:...
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13 views

How to use cdc_ncm driver instead of cdc_acm in ModemManager

In Ubuntu 16.04 I try to use a USB modem in NCM mode. But ModemManager uses automatically the cdc_acm driver which creates a PPP interface. lsusb shows 6 cdc_acm devices and 1 cdc_ncm device. How can ...
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1answer
43 views

Specify a home directory path for a user in /etc/passwd with spaces in it?

I have a path I want to use as a home directory in WSL, but it's also path that has spaces in it. I've tried escaping the spaces with slashes, and I've tried using single and double quotes with just ...
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1answer
22 views

Can't Start Fail2Ban

Lately I got 3 emails from Fail2Ban The jail nginx-http-auth has been stopped. The jail nginx-badbots has been stopped. The jail ssh has been stopped. Then I start SSH into my VM, this is the log ...
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13 views

Ubuntu download and upload speed drasitcally drop after a few hours

I have a strange issue. My computer is using gigabit connection and after booting, the download and upload speeds are very good (download: 800 Mbit/s, upload 600 Mbit/s). After a few hours, it ...
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13 views

Opening .jar files with `pkexec` and using Desktop Entries to run commands

I am writing a bash script that automates installation of TLauncher (Minecraft launcher) and basic dependency management on USBs running Lubuntu 18.04. Part of the bash script creates a desktop ...
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1answer
25 views

Run .bashrc function as sudo [duplicate]

I added this to ~/.bashrc to provide colorized tail: tailc () { tail $@ | ccze } And I can run it as so: tailc -f -n 10 foo/log.txt But I can't use it on a privileged file: sudo tailc -f -n 10 /...
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12 views

Use a modified Openssl for Apache2

I edited the openssl source code and compiled it manually because i had an "Unhandled critical extension" exception in my logs for a certain category of users, and i want my installed and configured ...
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1answer
14 views

How to force gedit to run each window in a separate process?

With Ubuntu and Gnome classic desktop, sometimes I have separate windows of gedit open on different workspaces. Since the program has its flaws and can be easily choked, for example by trying to undo ...
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16 views

How to extend size of partititon is installed Ubuntu? [on hold]

I have shome free space, And now I want to extend size of the partition is install Utuntu 18.04.
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21 views

error: ENOSPC: no space left on device, watch '/snap/code'

Do you know how to fix this issue? When I am trying to run vs code, I am seeing this. And I am seeing following if I run df -h /dev/loop25 15M 15M 0 100% /snap/gnome-...
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1answer
16 views

The repository 'http://www.duinsoft.nl/pkg debs Release' does not have a Release file

When updating, I'm getting these errors: E: The repository 'http://www.duinsoft.nl/pkg debs Release' does not have a Release file. N: Updating from such a repository can't be done securely, and is ...
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25 views

How to copy files from windows virtual machine to ubuntu host machine?

I have ubuntu installed in my work laptop and windows installed in my virtualbox. I installed windows in virtual machine so that I can download origin games on it. I want to copy those origin game ...
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11 views

problem when installing pyobjc in ubuntu 18.04

tsheri@tsheri-Aspire-E5-576G:~/Downloads/driver-drowsiness/drowsiness-detection$ conda activate driverenv (driverenv) tsheri@tsheri-Aspire-E5-576G:~/Downloads/driver-drowsiness/drowsiness-detection$ ...
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20 views

Installing Ubuntu 18.04 - confused about disks and directory structure

I am utterly confused regarding the disk and partition setup of Ubuntu 18.04 on my recently acquired refurbished Dell Latitude E7440. The good news, such as it is, is that I bought this computer in ...
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2answers
23 views

How to remove an apt repository which seems to be showing up after sudo apt update in the terminal but not present in /etc/apt/sources.list.d?

I accidentally added a repository with sudo add-apt-repository "deb http://archive.canonical.com/ $(lsb_release -sc) partner" and since then I am getting an error whenever I try the sudo apt update ...
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15 views

redirects error with ssl certificate

I am using drupal 8 , in a Google cloud engine (http and https traffic allowed) running apache on an Ubuntu 19.04. All worked, site (refered to here as sub.my-domain.com, it is indeed a subdomain with ...
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18 views

CUPS Printing PIN [closed]

I'm trying to set up a networked printer (a Konica Minolta Bizhub c558) that uses a four digit pin to authorize printing. I've set up the printer (using ipp://) and edited the printers.conf to try and ...
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14 views

'Minimal BASH like line editing is supported' GRUB Error

I bought a new hp desktop recently which comes with windows 10. I pretty much followed this video to dual boot it with linux Ubuntu (including editing the Grub customizer at the end, but I chose ...
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39 views

Trying to run Underlords on Ubuntu - “Failed to initialize Vulkan”

I'm fairly new to Linux. When I try to run Underlords, I get an error message: "Failed to initialize Vulkan" I'll just give you my specs for when someone asks... Ubuntu 18.04.3 Intel core i7-2600 ...
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1answer
13 views

Error while loading .Ko file to kernel

I have written simple driver and build it. When I tried to load driver I am getting below error Insmod: ERROR could not insert module operation not permitted Please help me with this
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2answers
24 views

ThinkPad T420 intel i5 4 GB RAM freezes all the time I open some tab on browser [on hold]

My laptop, a Thinkpad T420 with an intel i5 processor and 4 GB RAM works very slowly and freezes when I open some tabs, pages on browser. The laptop works slowly, sometimes, also when I do another ...
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1answer
38 views

Is it possible to use gpu directly from virtual machine on ubuntu?

I'm Ubuntu user and i'd like to install windows and get directly access to gpu (NVidia 1060 6 Gb) to unity 3D and gaming, i've read a lot of information about this possibility on internet but i didn't ...
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10 views

ACPI Ae_Not_Found Dual boot ubuntu 19.04

I was trying to dual boot my computer to Ubuntu 19.04 I got the Iso from the Ubuntu Website then created a bootable. I try to launch Ubuntu thru my Usb and I get this error.[][1 ] I was wondering ...
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30 views

Searching for a reliable filesystem for a mdadm Raid 5 built [on hold]

one of my server went to kernel panic tonight. After restarting the server I saw in the post messages that one of the drives was not working any longer. No problem I thought, because that is ...
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19 views

Ubuntu server installation stuck at “loading initrd.gz” ready in cobbler

Base OS: Centos7 Cobbler version: release28 I am trying to autoinstall ubuntu-18.04.3-server-amd64.iso via cobbler, but installation freeze at loading initrd.gz. Below is the kickstart file used: ...
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2answers
29 views

Mapping ufw rule to iptables

I'm moving from ufw to iptables. There is a default "limit" rule in ufw, which kicks in if an IP address initiates 6+ connections in 30 seconds (sudo ufw limit ssh). I use that limit rule for SSH ...
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19 views

Remotely changing the password on Ubuntu system accounts

I've recently set up an SFTP server for a number of people and their projects. For security reasons, people were given system accounts so they have no SSH access (we don't want them to accidentally ...
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11 views

GPG error: NODATA, How to correctly setup my server for a apt repository and my apt repository?

i have a repository made by me, im using apache, but i have a critical problem, when i run the command "apt-get update", i got this error in apt: E: GPG error: http://localhost ./ InRelease: ...
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12 views

sytemd reads file from /lib/systemd and ignores corresponding service file from /etc/systemd/system/multi-user.target.wants/

I have upgraded several servers from Ubuntu 14.04 to 18.04 with no issue. However, on a fresh Ubuntu 18.04 install, I have encountered a problem that seems strange. I have edited the systemd service ...
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33 views

I have created new user in linux, how can i activate its authentication setting?

I have created new user ubuntu using sudo adduser vyakar sudo it's home directory is /home/vyakar i also set the password for it at the time of the user creation but when i enter cd /home/vyakar it ...
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19 views

Ubuntu best files to delete to free-up disk space?

I have very minimal disk space inside an ubuntu 14 LTS. I wan't to create a bash script to constantly free-up unused space. What are the most critical paths I can constantly delete? (e.g. temp files, ...
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15 views

How to activate the i3 window manager after installation?

I have installed i3 window manager on my Ubuntu 18.04LTS using apt. After installation, I tried rebooting but still, Gnome is the default windows manager. Is there something that I should do once I ...
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10 views

WLAN that worked with Ubuntu doesn't with Centos 7

I've got a Dell Inspiron 1545 with a Dell Wireless 1387 WLAN. The WLAN worked fine with Ubuntu but is not recognized with Centos 7. I've already tried installing the Network Manager package. Seems ...
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1answer
27 views

Stuck in tty after fsck error on boot

I have Ubuntu 16.04 running on my laptop. After starting the laptop, I got /dev/sda8: UNEXPECTED INCONSISTENCY; RUN fsck MANUALLY According to this link I am fixing the error with fsck -f /dev/sda8 ...
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2answers
63 views

rsync permission denied (13), What am I doing wrong?

I am trying to migrate my website data to a new server and keep getting this error. I set up public key access and was able to complete rsync with a .txt file I then wanted to try a directory and it ...
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1answer
13 views

Receiving emails from local services

I would like to purchase a VPS and a domain to run my Rails web application on Ubuntu 18.04 LTS. I will send transactional emails using Sendinblue to allow users to activate their account. With regard ...
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20 views

top “Command Name” column

On Ubuntu 18.04, I have a C++ compiled program MyServer. top -c shows the "command line" correctly as ./MyServer, but the "command name" with top is shown as "main". I wanted to know how to get ...
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1answer
24 views

How to listen on same port, separate address using spice from libvirt?

Background info On the host I have a virtual bridge setup, and have two static IPs configured: 10.0.3.1/16 and 10.0.3.2/16. The host is Ubuntu 18.04 LTS, and is up-to-date at the time of this post. ...
1
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1answer
127 views

Relocation Error after updating Ubuntu Mate

I recently gave system update. After restarting the machine, I can't be able to open the terminal, network settings and any of my applications. The internet connectivity seems lost too. It throws the ...
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1answer
18 views

Odd problem installing Ubuntu on HP Z Book

This is the first time I've tried to install a dual boot Linux partition on a UEFI enabled machine, but I'm not even sure this is a UEFI problem. The machine is an HP Z Book G5. I created a Into 18....
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9 views

Touchpad Moves Laggy On 120 Hertz Screen

I have got 120Hz built in laptop display. I'm using updated Pop!_OS GNOME. My external mouse is fluid as it should be. I see my mouse moving is fluid that up to 120FPS. I tested with journalctl -f | ...
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27 views

Network Manager not working [Ubuntu]

Checking via systemctl status NetworkManager: Image of problem? When trying to do sudo service network-manager restart, it comes with this result: job for networkmanager.service failed because ...
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1answer
21 views

Start a tmux detached on boot up under a user

I'm on ubuntu 19 and I created the file /etc/rc.local and added this to the file: /bin/su -l mysuser -c "/usr/bin/tmux new-session -s foobar -d" I tried running this line by pasting it to the ...