Articles in Linux | UserComp.com

Using mlocate to search on multiple systems in parallel

Learn how to utilize the mlocate command in bash to search for files across multiple systems in parallel. Increase your efficiency and save time with this powerful tool.

Why does sudoers.d ignore filenames with dots in them?

Learn why sudoers.d ignores filenames with dots in them and how it affects the configuration of sudo. This article provides insights and solutions for managing sudoers.d files with filenames containing dots.

How to Solve the jq Speed Problem on Ubuntu

Learn how to solve the jq speed problem on Ubuntu. This article provides step-by-step instructions and tips to optimize the performance of jq on your Ubuntu system.

How and why does ~ vs its substituted form in path affect behavior of which / type?

Learn how the usage of ~ and its substituted form in a path can affect the behavior of certain types in Ubuntu. Explore the reasons behind these differences and understand their implications.

Fixing Lubuntu 16.04 - Windows 10 Not Showing in GRUB Menu

Learn how to resolve the issue of Windows 10 not appearing in the GRUB menu when dual-booting with Lubuntu 16.04. Follow these steps to ensure both operating systems are accessible from the bootloader.

Apache Load Balancer Unable to Distinguish Between Different Subdomains

Learn how to resolve the issue of Apache load balancer being unable to distinguish between different subdomains. This article provides step-by-step instructions for troubleshooting and resolving the problem on a Linux system.

How to Remove Holes in Sparse File on Linux?

Learn how to remove holes in a sparse file on Linux and optimize disk space. This article provides step-by-step instructions and tips for efficient file management.

How to Remove Ubuntu Entry from EFI and/or Reinstall OpenBSD Boot Loader

Learn how to remove the Ubuntu entry from EFI and reinstall the OpenBSD boot loader. This step-by-step guide will help you fix boot issues and regain control over your system's boot process.

How to Compile a C Program using libgpio(d) for Raspberry Pi?

Learn how to compile a C program using libgpio(d) for Raspberry Pi. This article provides step-by-step instructions and tips to successfully compile your program and utilize the gpio library for Raspberry Pi projects.

Do I need to take ownership to be able to delete/move files?

Learn whether taking ownership is required to delete or move files in Ubuntu. Understand the importance of permissions and how they affect file management. Discover how Samba can assist in managing file access and sharing.

How to Use Dynamic Shell+Tmux Configuration Files

Learn how to effectively use dynamic shell+tmux configuration files in Linux. This article explores the process of setting up and customizing your shell and tmux environments to enhance productivity and streamline your workflow.

Nginx Internal Redirect from Perl - Troubleshooting Guide

Learn how to troubleshoot and resolve issues related to Nginx internal redirects from Perl scripts. This guide provides step-by-step instructions and best practices to ensure smooth functioning of your Nginx server and Perl scripts.

Understanding Special Permissions in Linux: A Guide for Tech Support

Learn about special permissions in Linux and how they can enhance security and control access to files and directories. This guide provides an overview of special permissions and their significance in the Linux operating system.

Running OpenThread Border Router in Docker Container on Custom Network

Learn how to run OpenThread Border Router in a Docker container on a custom network. This article provides step-by-step instructions and tips for setting up and configuring the Border Router using Docker. Enhance your IoT network with this powerful tool.

How to Differentiate Between Directories Created Manually and Directories Created by Installed Programs

Learn how to distinguish between directories that are created manually and directories that are created by installed programs on Ubuntu. This article explores the use of Python and metadata to identify the origin of directories.

Undo changes to .zshrc file

Learn how to undo changes made to the .zshrc file in the terminal. This article provides step-by-step instructions on reverting modifications and restoring the original settings. Ensure a smooth experience with your zsh shell configuration.

Differentiation Between Directories Created Manually and Directories Created by Installed Programs

Learn how to distinguish between directories that are manually created and directories that are created by installed programs in Ubuntu. Understand the importance of this differentiation for managing your filesystem effectively.

Troubleshooting VPN Connectivity: Can Reach VPN Peer Only After Ping from This Peer

Learn how to troubleshoot VPN connectivity issues when you can only reach a VPN peer after pinging from that peer. This article provides step-by-step instructions for resolving the problem and ensuring seamless VPN connections.

Accidentally Deleted UEFI Partition: Can't Boot Linux Mint

Learn how to recover from accidentally deleting the UEFI partition on your system and restore the ability to boot Linux Mint. This article provides step-by-step instructions and troubleshooting tips to help you resolve the issue.

Understanding the Meaning of the First '0' in umask = 0022 in Linux

Learn the significance of the first '0' in umask = 0022 in Linux file permissions. Discover how it affects the default permissions for newly created files and directories.

Preventing Compiz Spam in journalctl due to Wine

Learn how to prevent compiz spam in journalctl caused by Wine on Ubuntu. This article provides step-by-step instructions to resolve this issue and improve system performance.

Troubleshooting SSH Server Stops Running Issue in Ubuntu

Discover how to resolve the issue of SSH server stopping after the first successful connection ends in Ubuntu. This article provides step-by-step instructions for troubleshooting the problem and ensuring uninterrupted SSH server functionality.

Troubleshooting Podman Compose Golang Docker Image Connection Issue with Postgres Docker Image

Learn how to troubleshoot the connection issue between a Podman Compose Golang Docker Image and a Postgres Docker Image. This article provides step-by-step instructions to resolve the problem and ensure smooth communication between the two containers.

Troubleshooting SSH Login Delay on Debian: A Step-by-Step Guide

Experiencing delays while logging in through SSH on your Debian system? This article provides a comprehensive troubleshooting guide to help you resolve the issue and improve login performance. Explore various steps and solutions to overcome SSH login delays on Debian.

How to Make a Server Not Use VPN as a Default Gateway

Learn how to configure your server to not use a VPN as the default gateway. This article provides step-by-step instructions for Linux users and covers topics such as networking, VPN, routing, and WireGuard.

Troubleshooting SSH Login Delayed on Debian

Learn how to troubleshoot and resolve SSH login delays on Debian. This article provides step-by-step instructions and tips to improve the login performance of SSH on your Debian system.

Docker Container Fails to Start Due to Missing SMB Drive

Learn how to troubleshoot Docker containers that fail to start because of a missing SMB drive. Find out why they don't automatically restart when connected and how to resolve the issue.

How to delete parent element if child element is missing with xmlstarlet

Learn how to use xmlstarlet to delete a parent element from an XML file if a specific child element is missing. This article provides step-by-step instructions and examples to help you accomplish this task efficiently.

Selecting participant number from a txt file

Learn how to extract participant numbers from a txt file using Linux, Unix, and sh. This article provides step-by-step instructions and tips for selecting participant numbers efficiently.

Moving Windows from dual-boot to a separate disk

Learn how to migrate your Windows installation from a dual-boot setup to a separate disk. This article provides step-by-step instructions and tips for a successful transition.

How to Avoid Errors When Running SDK Manager and Other Android SDK Utilities

Learn how to prevent errors when executing sdkmanager and other command line utilities of Android SDK. This article provides useful tips and techniques for Linux users, covering topics such as bash scripting, Python, Java, and Android development.

Replacing Special Characters in a Text File with Linux Command Line

Learn how to use Linux command line to replace special characters like (-) in a text file. This article provides step-by-step instructions and examples, focusing on the CREATE TABLE IF NOT EXIST line. Special characters such as backslash, colon, semicolon, single quotes, and double quotes will be HTML encoded for proper handling. Enhance your Linux command line skills and ensure data integrity in your text files.

Centos 7 yum update issue - Troubleshooting Guide

Having trouble with yum update on Centos 7? This article provides a comprehensive troubleshooting guide to help you resolve common issues and successfully update your system. Get step-by-step instructions and expert tips to overcome any obstacles you may encounter during the update process.

Configuring an .opvn file to allow certain fully qualified domain names down the tunnel

Learn how to configure an .opvn file to allow specific fully qualified domain names to pass through the tunnel when used by the client. This article provides step-by-step instructions and tips for optimizing your openvpn setup.

Troubleshooting Nginx: HTML Page Returned Instead of Expected HTTP Status Code

Learn how to troubleshoot an issue with Nginx where it returns an HTML page instead of the expected HTTP status code when the limit_req_status rejects the request. Find solutions and tips to resolve this problem effectively.

How to Connect OpenWRT to Hotspot for Package Installation

Learn how to connect OpenWRT to a hotspot for easy package installation. This article provides step-by-step instructions and tips to ensure a successful setup.

Fixing a Blank Page Issue in phpMyAdmin on VPS1 Hosting

Encountering a blank page when opening phpMyAdmin on VPS1 hosting? This article provides step-by-step instructions to resolve the issue and regain access to your database management tool.

Can't Extend Volume in Windows After Deleting Ubuntu Dual Boot

Having trouble extending a volume in Windows after deleting Ubuntu dual boot? Learn how to resolve this issue and remove Ubuntu from the boot options.

How to X11 forward after multi hopping in SSH?

Learn how to enable X11 forwarding after multi hopping in SSH. This article provides step-by-step instructions for setting up X11 forwarding in a secure and efficient manner.

Troubleshooting Google Authenticator MFA Codes Not Working in Linux

Learn how to troubleshoot and fix issues with Google Authenticator MFA codes not working in Linux. This article provides step-by-step instructions for resolving common problems related to Google Authenticator, Linux, Debian, sudo, and multi-factor authentication.

Nested QEMU-KVM hanging with `watchdog: BUG: soft lockup - CPU#3 stuck for 134s!` kernel messages

Learn how to troubleshoot and resolve issues with nested QEMU-KVM hanging due to 'watchdog: BUG: soft lockup - CPU#3 stuck for 134s!' kernel messages. This article provides step-by-step instructions to identify and fix the problem in the Linux environment.

Connect OpenWRT to Hotspot for Package Installation

Learn how to connect your OpenWRT router to a hotspot for package installation. This article provides step-by-step instructions to help you seamlessly integrate your OpenWRT device with a hotspot, enabling you to easily install new packages and enhance your network capabilities.

How to Suppress Listing Loop Devices When Using Mount Command in Linux

Learn how to suppress the listing of loop devices when using the mount command in Linux. This article provides step-by-step instructions to help you manage loop devices efficiently.

Wireguard Issue on Home WiFi - Troubleshooting Guide

Learn how to troubleshoot Wireguard issues on your home WiFi network. This article provides step-by-step instructions for resolving common problems and optimizing your Wireguard VPN connection.

Understanding BIOS Boot Options: A Guide for Linux Users

Learn about BIOS boot options and how they affect the boot process in Linux. This guide provides a comprehensive overview of BIOS settings, their significance, and troubleshooting tips for Linux users.

Sodu: command not working - Troubleshooting Guide

Having trouble with the 'sodu' command not working in Ubuntu 22.04? This article provides a comprehensive troubleshooting guide to help you resolve this issue and get your command working again.

Choosing the Kubernetes PV and Access Mode

Learn how to choose the appropriate Kubernetes Persistent Volume (PV) and Access Mode for your applications. This article provides insights into managing storage resources efficiently in a Kubernetes cluster.

How to Minimize High Disk Utilization: Proactive Steps for Optimal Performance

Learn how to minimize high disk utilization and improve the performance of your system. This article provides proactive steps and tips to optimize disk usage, especially for hard drives, virtual machines, and Red Hat Enterprise Linux. Discover how to manage CPU usage and VMDK files effectively to enhance overall system performance.

Troubleshooting WSL not initializing due to systemd-firstboot.service

Encountering issues with WSL not initializing because of systemd-firstboot.service? This article provides troubleshooting steps and solutions to resolve the problem and get your Windows Subsystem for Linux up and running smoothly.

Troubleshooting IpSec StrongSwan HA Configuration and Connection Issues

Learn how to troubleshoot and resolve configuration and connection issues with IpSec StrongSwan HA setup. This article provides step-by-step instructions and tips for resolving common problems related to vpn, raspberry-pi, pfsense, ipsec, and strongswan.