Articles in Linux | UserComp.com

How to Fix 'sudo: /usr/bin/sudo must be owned by uid 0 and have the setuid bit set'

Learn how to properly fix the error message 'sudo: /usr/bin/sudo must be owned by uid 0 and have the setuid bit set' in Linux. This article provides step-by-step instructions for resolving the issue and ensuring the correct ownership and setuid bit settings for the sudo command.

QEMU Nested Virtual Machines: How to Use WSL2 and QEMU Together

Learn how to leverage QEMU Nested Virtual Machines in conjunction with WSL2 to enhance your virtualization capabilities. This article provides step-by-step instructions and tips for seamless integration.

Unable to Unlock Screen Under LightDM in XDMCP Configuration

This article addresses the issue of being unable to unlock the screen under LightDM in XDMCP configuration. It provides troubleshooting steps and solutions for resolving this problem in the Linux environment.

ARP Issue with VLAN on VMWare Workstation

Learn how to troubleshoot and resolve ARP issues when using VLANs on VMWare Workstation. This article provides step-by-step instructions for Ubuntu users utilizing Netplan configuration.

How to nicely print time difference in bash?

Learn how to easily print the time difference in bash using simple commands and formatting techniques. This article provides step-by-step instructions and examples to help you display time differences in a readable and visually appealing manner.

How does Linux hide file for duration of mount?

Learn how Linux hides files during the mount process and ensures their security. Explore the techniques used to hide files and protect sensitive data.

Troubleshooting Kali Linux Printing Issues on Surface Pro 6 with gdm3

Having trouble finding the print service while using Kali Linux with gdm3 on your Surface Pro 6? This article provides troubleshooting steps to resolve printing issues on this specific setup.

Fixing Copying Tabs from Terminal Issue at Text-Wrapping Edge

Learn how to resolve the problem of broken copying tabs from the terminal when the text-wrapping edge causes the width to change the outcome. This article provides step-by-step instructions for fixing the issue and ensuring smooth copying of tabs.

Does the Linux kernel have floating point numbers?

Learn about the presence of floating point numbers in the Linux kernel. Explore the significance and usage of floating point numbers in Linux and its impact on system performance.

Mutt: BCC to /var/mail/myself instead of out via IMAP?

Learn how to configure Mutt to BCC emails to /var/mail/myself instead of sending them out via IMAP. This guide provides step-by-step instructions for optimizing your email workflow and ensuring your BCC copies are stored locally.

Troubleshooting Flickering Windows on Linux Mint: How to Fix

Encountering flickering windows on Linux Mint? This article provides step-by-step instructions on how to troubleshoot and fix this issue. Explore solutions to ensure a smooth user experience on your Lenovo laptop running Linux Mint.

Troubleshooting Slow Performance of Debian Server on Raspberry Pi

Learn how to troubleshoot and resolve slow performance issues on a Debian server running on a Raspberry Pi. Discover tips and techniques to optimize memory usage and improve overall performance.

Change Postfix Sender Envelope MAIL FROM Address To Match Return Path Header Email For Multiple Domains

Learn how to change the Postfix sender envelope MAIL FROM address to match the return path header email for multiple domains. This article provides step-by-step instructions and tips for optimizing your email configuration.

Troubleshooting Linux: bat cache --build says "unexpected argument –-build” found

Encountering the error message "unexpected argument –-build” when running bat cache --build command on Linux? This article provides troubleshooting tips and solutions to resolve this issue.

How to get the IP address of veth in a bridge?

Learn how to retrieve the IP address of a veth interface within a bridge on Linux. This article provides step-by-step instructions and commands to help you troubleshoot networking issues.

FFmpeg on Linux - Convert Video to Play on iPhone [Solved]

Learn how to use FFmpeg on Linux to convert videos for iPhone playback. This article provides a step-by-step guide to solve your video conversion issues and ensure compatibility with iOS devices.

Troubleshooting: Cannot Connect to the Internet - nslookup Error

Learn how to troubleshoot the error message 'Cannot connect to the internet. nslookup outputs “;; communications error to 127.0.0.53#53: timed out”' on a Linux system. This article provides step-by-step instructions to diagnose and resolve the issue related to DNS and routing.

Using sudo for just one command in lost+found folder

Learn how to use the sudo command to execute a single command in the lost+found folder in Linux. This article provides step-by-step instructions and tips for using sudo effectively in Ubuntu and other Linux distributions.

How to Configure a Jump Server to Allow Access to a Local Server Web GUI from a Remote Client Machine

Learn how to configure a jump server on Ubuntu to enable remote access to a local server's web GUI. This article provides step-by-step instructions for setting up an SSH tunnel and accessing the server's graphical user interface from a remote client machine.

Can't Make BCD File on Linux: Troubleshooting Guide

Having trouble creating the BCD file on Linux? This troubleshooting guide provides step-by-step instructions to overcome this issue and successfully generate the BCD file. Explore the solutions and get your Linux system up and running smoothly.

Void Linux: Where to define my aliases regardless of the shell being used?

Learn where to define your aliases in Void Linux, regardless of the shell you are using. This article provides step-by-step instructions and tips for managing aliases effectively in Void Linux.

How to Remove Three Dots on Fedora Mate Panels

Learn how to remove the three dots on Fedora Mate panels with this step-by-step guide. Follow these instructions to customize your Fedora Mate panels and enhance your desktop experience.

Convert Video to Play on iPhone with ffmpeg on Linux

Learn how to use ffmpeg on Linux to convert videos to a format compatible with iPhone. This article provides step-by-step instructions and tips for optimizing video playback on iOS devices.

How to tell autoconf to run specific commands in with 'make install'

Learn how to configure autoconf to execute specific commands during the make install process. This article provides step-by-step instructions for integrating custom commands with autoconf and make install.

Suddenly Unable to Access the Internet: Works Fine Booting from USB Drive

Encountering sudden internet access issues? Learn how to troubleshoot the problem by booting from a USB drive in Linux Mint. Get step-by-step instructions and expert tips.

How to Convert Videos to Play on iPhone Using FFmpeg on Linux

Learn how to use FFmpeg on Linux to convert videos into a format compatible with iPhone. This step-by-step guide will help you optimize your videos for seamless playback on your iPhone.

How Docker iptables work by default?

Learn about the default behavior of Docker iptables and how it affects network communication in Linux. Gain insights into the configuration and rules that Docker sets up by default.

Standard Protocols to Advertise Alternative Internet Gateways to Local, Already DHCP-Configured Network

Learn about the standard protocols used to advertise alternative internet gateways to a local network that is already DHCP-configured. This article explores the concepts of networking, home networking, gateways, and zeroconf in a Linux environment.

Troubleshooting VMWare Player Freezing on RHEL 9

Learn how to resolve the issue of VMWare Player freezing on RHEL 9. Follow these troubleshooting steps to get your VMWare Player working smoothly again.

How to Make a Copy of Files in Grandchild Directory, Rename Them, and Add Text After n Lines from the Top

Learn how to efficiently copy files in a grandchild directory, rename them, and insert text after a specific number of lines from the top using Linux shell commands. This article provides step-by-step instructions and examples for effective file management in a Unix-like environment.

Troubleshooting: VirtualBox Virtual Machines Sidebar Not Showing in Manager Window

Learn how to resolve the issue of VirtualBox not displaying the Virtual Machines Sidebar in the Manager Window. Follow these troubleshooting steps to fix the problem and regain access to your virtual machines.

Installing Python 3.11 with SSL on Ubuntu 16.04

Learn how to install Python 3.11 with SSL on Ubuntu 16.04. This step-by-step guide will help you set up a secure Python environment on your Ubuntu system.

Where is the .Xauthority for GDM on Ubuntu 23.04?

Learn where to find the .Xauthority file for GDM on Ubuntu 23.04. This article provides the exact location and explains its importance in the GDM login process.

Can't run ffmpeg on OSMC: Troubleshooting Guide

Having trouble running ffmpeg on OSMC? This article provides a comprehensive troubleshooting guide to help you resolve any issues you may encounter. Learn how to overcome common obstacles related to ffmpeg, debian, apt, and OSMC.

How to find out exactly which process was killed by OOM killer?

Learn how to identify the specific process that was terminated by the OOM killer in Linux. This article provides step-by-step instructions and commands to help you troubleshoot memory-related issues.

Set window as default focus target in Xorg (no window manager)

Learn how to set a window as the default focus target in Xorg without a window manager. This article provides step-by-step instructions and tips for optimizing your workflow in Xorg.

E: Unable to parse package file /var/lib/apt/extended_states (1) - Troubleshooting Guide

Learn how to resolve the 'E: Unable to parse package file /var/lib/apt/extended_states (1)' error on Ubuntu and Windows Subsystem for Linux. This troubleshooting guide provides step-by-step instructions to fix the issue and ensure smooth package management.

How to Configure a Gateway's DHCP and DNS to Resolve Hosts with the Same Hostname but Different VLAN Domains

Learn how to configure a gateway's DHCP and DNS to resolve hosts with the same hostname but different VLAN domains. This article provides step-by-step instructions and tips for optimizing your network setup.

Setting up Dual Heads on CentOS

Learn how to set up dual monitors on CentOS for an enhanced display experience. This article provides step-by-step instructions and tips to configure multiple monitors on CentOS, allowing you to increase productivity and multitask efficiently.

Integrating WebSocket into LAMP Service with an Intermediary Reverse Proxy in Docker

Learn how to integrate WebSocket into a LAMP service with the help of an intermediary reverse proxy in Docker. This article provides step-by-step instructions and highlights the importance of SSL and Docker Compose in the process.

Better method to use jq

Learn a better method to use jq, a powerful command-line tool for JSON data manipulation. This article provides tips and tricks to enhance your experience with jq, making it easier to extract, filter, and transform JSON data efficiently.

VirtualBox Guest with NAT and DHCP for Windows Networking

Learn how to configure a VirtualBox Guest with NAT and DHCP on Windows for seamless networking. This article provides step-by-step instructions for setting up your VirtualBox Guest to obtain its own IP address from DHCP while being able to see both host interfaces.

OpenVPN: How to reach a specific ip on client network side?

Learn how to reach a specific IP on the client network side using OpenVPN. This article explores the necessary steps and configurations to enable successful communication.

Unable to Access Secondary OS (Windows) - Troubleshooting Guide

Having trouble accessing your secondary OS (Windows) on a dual-boot system? This troubleshooting guide provides step-by-step instructions to help you resolve the issue and regain access to your Windows operating system.

Tunnel between machine and VPS with port forwarding

Learn how to create a secure tunnel between your machine and a VPS using port forwarding. This article provides step-by-step instructions and tips for setting up the tunnel on Linux systems. Enhance your network security and access your VPS securely from anywhere.

Is there a command line in ChromeOS equivalent to the terminal in Linux?

Discover if ChromeOS has a command line interface similar to the terminal in Linux. Explore how to access and utilize the command line in ChromeOS for enhanced functionality and control.

How to Obtain OpenVPN Server Cert on the Client

Learn how to obtain the OpenVPN server certificate on the client for a secure connection. This article provides step-by-step instructions and tips for setting up OpenVPN on your Linux system.

Unable to Access Secondary OS (Windows)

Having trouble accessing your secondary OS (Windows) in a dualboot setup? This article provides solutions and troubleshooting steps to help you regain access to your Windows operating system.

Which files are shared between docker container and host?

Learn about the files that can be shared between a Docker container and its host in Ubuntu. Understand the process of file sharing and its implications for your Docker workflow.

Display Bug on UEFI, GRUB, Linux, and Plugged in Windows

Discover how to troubleshoot and resolve a display bug that occurs on UEFI systems with GRUB, Linux, and plugged in Windows. This article provides insights into drivers, GRUB configuration, UEFI settings, and GPU compatibility in a dual-boot environment.