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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Why do I still get prompted for ssh passphrase?

When I ssh into my Ubuntu 20.04.1 system from my Mac 12.6 system, I am being prompted for my key passphrase each time, but don't know how to get rid of the prompt. Below is the output from the Ubuntu ...
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Outline on ubuntu server

I am trying to install Outline manager on a VPS. I installed ubuntu server mini 22.04 on it and I downloaded all the dependecies. When I tried to run it as an appimage file, as it is a GUI application ...
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Audio unavailable on Ubuntu after Windows update - Dual boot

I've been using dual boot on my PC since few months and everything is fine until I updated my Windows 10 a week ago. Just after the update, I was unable to connect via WiFi and listen to Audio from ...
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Network Is Unreachable When Installing Jenkins On Ubuntu 20.04

So I want to install jenkins on my ubuntu 20.04 VPS and always got the error "Network is unreachable". I tried to install it with wget like this : wget https://get.jenkins.io/war-stable/2....
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USB devices connecting then disconnecting permanently on intermittent boots for Ubuntu 16.04 Raspberry pi

Every so often (about 25% of the time) when I boot up my pi, the USB devices will not work. Looking at dmesg output below. It appears my devices connect, then disconnect a second or two later, and ...
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Remove Keepass2 icon from system tray?

Since the upgrade to ubuntu 22.04, keepass2 shows an annoying icon in my system tray. Is there any way to remove it?
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Button seems to be permanently pressed when closing my laptop on ubuntu 22.04.1

I am using a razer blade stealth 13 from 2016 running ubuntu 22.04.1. Sometimes when I close my laptop and open it back up it seems as if a button on my keyboard were permanently pressed. This causes ...
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installing cisco packet tracer

when I try to install Cisco packet tracer like the way the install instructions say sudo apt-get install ./CiscoPacketTracer_xxx_Ubuntu_64bit.deb I get this message why E: Unsupported file /...
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Unable to mount an encrypted drive in Ubuntu 22.04

First off, the system ran fine for about a month after the initial build before the following started happening. Regular boot dumps me into initramfs after a message that the disk was decrypted ...
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Which file does UEFI execute?

I would like some clarification on the UEFI booting process. The screen shots below show my current configurations. I need some clarification on which file UEFI executes. Does UEFI execute /boot/efi/...
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Proc won't mount in ubuntu

Proc won't mount in Ubuntu-termux, it giving this message. Error: /proc must be mounted To mount /proc at boot you need an /etc/fstab line like: proc /proc proc defaults In the ...
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Ubuntu Server - cant connect to github

I am unable to use github from the command line on a newly installed Ubuntu server. Pinging and curling github fails but works fine for other hosts. OS: Ubuntu 22.04.1 LTS Ping test # google works ...
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How to grant nobody openvpn access to the ccd directory?

I need to distribute static addresses to some openvpn clients, which I decided to do via ccd. I would also like to downgrade the privileges of the openvpn daemon for more security. Unfortunately, ...
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How do I program Ubuntu "grub:" to use 5.15.0.50 generic?

The attached update-grub outputs shows that 5.15.0-50-generic (Ubuntu) is available. After checking grub default file - output is too big to post here - I did not found any "advanced options"...
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Display manager fails with a full hard drive (black screen after login)

Before I begin, this is a combination of two problems I've experienced before, but since they've now occured at the same time, I've got no clue what to do. I'm running Ubuntu 22.04.1 LTS. Problems: ...
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Unable to restart bluetooth service

I'm unable to restart bluetoothd. I tried: sudo service restart bluetooth sudo service stop bluetooth systemctl stop bluetooth sudo kill -9 <bluetoothd-pid> But systemctl status bluetooth ...
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1 answer
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how to copy text of file to ram (to do paste later)

I would like to copy the content of a file (string) to my ram memory. As in copy of a text so I can do paste later. Example: I have a file name: my_pub_key.pub and inside there's big amount of chars. ...
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1 answer
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Creating shortcut to windows folder on ubuntu

I am running Ubuntu alongside Windows 11. I often use Windows files and directories stored on the same computer but in different partitions. This is quite long because I have to navigate through the ...
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How to boot using EFI with custom Ubuntu 22 image?

I have a customized Ubuntu ISO, generated with genisoimage until Ubuntu 20. Unfortunately, Ubuntu 22.04 removed isolinux from its ISO, see here: https://github.com/covertsh/ubuntu-preseed-iso-...
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Runnig OpenVPN Server and Client at the same time on a same machine

I want to run an OpenVPN server and client simultaneously on the same machine. I want to route my OpenVPN server A clients through my OpenVPN client on server A to server B. What should I do? I'm new ...
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1 answer
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Regex is not work for [][][.*] in the rsyslog conf

I want to redirect the following messages into the log file: "[example]:[foo][bar]: " "[example]:[foo][hello]: " "[example]:[foo][world]: " "[example]:[foo][other]: &...
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1 answer
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How to disable iptables logging without removing the rule

Can I disable the iptables logging without removing the --log-prefix "iptables: " rule? I have added the following rules into the iptables: iptables -A INPUT -j LOG --log-prefix "...
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Using Xpra to Remotely Access an Ubuntu Unity desktop from Debian 11

In the Xpra documentation, it says that you can remotely access a Linux desktop with a command like: xpra start-desktop ssh://user@192.168.0.2 --start=fluxbox How would you do this if Ubunty Unity 22....
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1 vote
1 answer
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How to enable HugeTLB controller in cgroup v2 on Ubuntu

I am trying to enable HugeTLB Controller on cgroup v2 on my system but can't figure out how. This is the list of controllers on my system: cat /sys/fs/cgroup/cgroup.controllers cpuset cpu io memory ...
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1 answer
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sudo apt update --allow-unauthenticated gives error "The repository has no release file" "Updating from such a repository can't be done securely"

On Ubuntu 21.04, when I run sudo apt update --allow-unauthenticated I'm getting errors saying the repository has no release file and updating from such a repository can't be done securely and is ...
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Ubuntu VPS in sleep mode/standby?

Exactly the same as this thread. Any ideas? I currently have a problem with my VPS (ubuntu 14.04.4). When I access it after hours the first time again via HTTP or SSH it takes a few seconds until it ...
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Alsa very slow, sound starts to play only after 5 seconds

I'm facing an issue with this system which sounds are only played after 5 seconds. I have observed also this 5 second delay on every alsa command, for example: aplay -l aplay -L Also, testing sound ...
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Was my VPS compromised?

Today I was incidentally ssh'ing into my VPS and checked htop. Instantly I was wondering, why CPU usage was 100% and I identified an unknown (to me) screen session running a dubious "masscan"...
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I have a python script in centos to satisfy packages dependencies how to achive in ubuntu for Apt package manager [duplicate]

"""Generate a url list for all rpm files that must be installed to satisfy dependencies.""" import optparse, sys, yum def main(argv=None): if argv is None: ...
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How to install g++12 on Ubuntu 20.04?

I am working with some code that requires g++12 I was wondering how I could get this compiler on Ubuntu 20.4.4 If I need to install it from source how would I do that? I have tried a few things with ...
1 vote
0 answers
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HID device is not added to google meet on Ubuntu 22.04

for some reason I cannot add a HID device (headset with mute button) to Google Meet on Ubuntu 22.04. I installed latest google-chrome, In settings of the meeting I click "Connect device", ...
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forward incoming traffics from VPN to another VPN

I have two servers(a Linux(Ubuntu) and a MikroTik). these two servers are connected to each other via GRE Tunnel, and they can ping each other without any issues. IPs on GRE Tunnel: Linux: 11.11.11.1/...
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1 answer
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Visibility problems with the screen on Linux running in a Virtual Box after update to the latest version

I updated my Ubuntu to the latest version on my Virtual Box, but after the update I can't see the screen completely. I've put a screenshot of the problem I'm facing. Thank you for the help.
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Install wine application launchers in /usr/share/applications instead than /root/.local/share/applications

Ubuntu 22.04 LTS using Xorg. When I first run a Windows application installer using wine without the sudo command, the application launchers of the installed program go to ~/.local/share/applications ...
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ubuntu22.04 shutdown issues

unable to shutdown ubuntu 22.04lts,system prompted password for shutdown message shown as: systemd.shutdown[1]:syncing filesystems and block devices-timed out, issuing SIGKILL to PID 6917
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2 answers
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Can somebody please explain the df -h result on ubuntu?

I am very new to ubuntu or linux and I am using ssh to remotely access to the ubuntu vm. I have allocated 2GB for the disk on vm. When I used df -h to check the sizes, Filesystem ...
0 votes
1 answer
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bash unable to interpret cli command that uses curly braces in GitHub Ubuntu

What specific syntax needs to be changed in the aws s3api cli command below in order for the bash shell to interpret the command properly? The environment is an ubuntu-latest GitHub runner executing a ...
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0 votes
1 answer
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How to use ansible to detect the specific flavor of Linux?

How can I use ansible to detect the specific flavor of Linux, e.g. "Lubuntu" -- a variant of Ubuntu? On a Lubuntu 22.04, I tried to track ansible_distribution with the following playbook: ---...
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Multiple iptables.rules files or include statement

I think that Title is self-explanatory. Anyway, what I'm looking for is a way to modularize my /etc/iptables.rules file, so I can easily manage them, e.g. a file with standard rules which all server ...
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1 answer
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Cronjob only on Saturday of first Thursday of the month

I want a cronjob to run only on Saturday of the first Thursday of the month. So the first Thursday of the month it will run on Saturday. If I wanna run it at 12 on the first Thursday of the month, I ...
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2 answers
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Installing nodejs in ubuntu via the downloaded file from nodejs website

I have downloaded the nodejs repository from nodejs website and I want to install it via node file in bin directory and I want to install it with gdebi or software installer app but the errors are: ...
1 vote
0 answers
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4K display won't connect to Ubuntu 22.04 using Thunderbolt/usbc cable. Lenovo X1 Carbon 6th gen

Have a monitor that occasionally correctly connects to my X1 Carbon. It's 4K 100hz display. Using HDMI keeps it at 50hz which is trash. I am using a top end cable thunderbolt cable that works for all ...
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1 vote
1 answer
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ExFat mount permission

I am trying to mount an exfat drive using fstab with read write permission for both user and group. The line of etc/fstab for this drive is: UUID=5E98-37EA /home/ftagliacarne/data/media exfat defaults,...
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1 answer
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client denied by server configuration after reinstalling KDE Desktop and SDDM

Systeminfos: Ubuntu 22.04 KDE-Plasma-Version: 5.24.6 KDE-Frameworks-Version: 5.92.0 Qt-Version: 5.15.3 Kernel-Version: 5.15.0-10048-tuxedo (64-bit) Apache 2.4.52 During a system cleanup, I seem to ...
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1 vote
1 answer
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Ubuntu Server 22.04.01: Maldet, Successful login instantly closes, via SSH + directly

Problem: I ran a maldet scan and got a few hits, and now after rebooting, I cannot log in via SSH into my Ubuntu Server. That is, using the normal ssh login succeeds then instantly closes out. I ...
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"java -Xshare:auto -Des.netsworkaddress.cache.ttl=60..." What is it? Can I unistall it in some way?

I am reviewing a web service with Ubuntu 18.04.6 that is reported to load the sites mounted in it so slow. Reviewing the process running with htop, I detected that much of the memory is used by ...
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pymysql.err.OperationalError: (2003, "Can't connect to MySQL server on 'localhost' ([Errno 99] Cannot assign requested address)")

I have a streamlit app that requires connection to MariaDB. When I run docker-compose up I get this error: pymysql.err.OperationalError: (2003, "Can't connect to MySQL server on 'localhost' ([...
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1 answer
37 views

`cat` affects last `Access` time but not last `Change` time

On my Ubuntu system, I've created a new file prueba.txt using touch prueba.txt. When I show its file statistics using stat prueba.txt, the output is as follows: File: prueba.txt Size: 0 ...
2 votes
1 answer
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ubuntu 20.04 LTS mkfs.xfs problem creating xfs in nvme disk on GCE GCP

Attempting to create xfs partition in NVMe disk type in ubuntu 20.04 in GCP is throwing me this error: ubuntu 20.04 , nvme disk root@my-euwe3a-vm:/home/myuser# mkfs.xfs /dev/myvg1/my_lv meta-data=/...
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2 votes
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How can I troubleshoot a CIFS mount that breaks after 15 minutes?

Context I mount two Samba shares in a large corporate network (e.g. share A and B) on a machine with Ubuntu 20.04.5 LTS. Both mounts start out fine, but share B stops working after some time. This is ...

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