Articles in Linux | UserComp.com

How to Isolate WireGuard Networks on a Small Linux VPS Host with Multiple VPNs

Learn how to isolate WireGuard networks on a small Linux VPS host with multiple VPNs. This guide covers setting up separate WireGuard interfaces and unique IP address ranges for each VPN, improving security and privacy. Follow these steps to optimize your VPN experience on a Linux VPS.

Troubleshooting: Can't Bind-Key Ctrl+3 in TMUX

Having trouble binding Ctrl+3 in TMUX? Learn about the possible causes and solutions to this problem. Get your terminal back in control with our tech support guide.

Understanding POSIX-compliant Systems: Beyond UNIX?

POSIX-compliant systems offer UNIX-like API layers, but they're not limited to UNIX. Learn about these systems and their compatibility with UNIX system calls.

Reverse Proxy with IpTables (DNAT/SNAT) Doesn't Work on AWS: Troubleshooting

Learn how to troubleshoot reverse proxy configuration using IpTables on AWS. This article covers DNAT and SNAT, and whitelist implementation.

Linux Mint VirtualBox Error: Kernel Driver Not Installed (RC=-1908) when Running Windows 10 for CNC, 3D Printer, or Laser Cutter

This article explains how to resolve the Kernel Driver Not Installed (RC=-1908) error when attempting to run Windows 10 as a guest operating system in VirtualBox on Linux Mint for CNC, 3D printer, or laser cutter projects.

Create PS1 Variables to Customize Bash Terminal on Linux

Learn how to create and customize PS1 variables in Bash terminal on Linux to make it more informative and user-friendly. If your Bash terminal looks dull after moving to a new Linux computer and customizing the PS1 variable in bashrc didn't help, this article is for you. Follow the steps in this guide to create your own PS1 variable and enhance your Bash terminal experience.

Setting Up Port Forwarding on Ubuntu: A Comprehensive Guide

Having trouble setting up port forwarding on your Ubuntu server? This guide will walk you through the process, providing clear and concise instructions to help you get it right. Learn about the benefits of port forwarding and how to configure it for your specific needs. Read more to find out how to improve your network's security and functionality.

Extracting Frames from Multiple Videos using FFmpeg: A Step-by-Step Guide

In this tech support article, we'll walk you through the process of extracting frames from multiple videos using FFmpeg. We'll provide you with the necessary command for extracting four frames from each video clip. Let's get started!

How to Install Linux on an Old PC, Keeping Your Windows Partition?

Learn how to install Linux on an old PC while keeping your Windows partition intact. Follow these steps for a seamless dual-boot experience. Read more on our tech support site.

Setting up Static Routing on Keenetic GIGA Router for Two Different Networks

Learn how to configure static routing on a Keenetic GIGA router for two different networks. Follow this step-by-step guide with diagrams and screenshots.

Ubuntu 24.04.1 LTS: Troubleshooting 2-minute Login Hangs

Having issues with a consistent 2-minute delay after logging into your Ubuntu 24.04.1 LTS system? This article discusses potential solutions to resolve the login responsiveness issue, specifically for users utilizing a multi-monitor setup.

Ubuntu 22.04: How to Permanently Accept IPv6 Auto Configuration via Router Advertisement Messages

Learn how to configure Ubuntu 22.04 to accept IPv6 auto configuration via Router Advertisement messages. This tutorial provides a step-by-step guide to make the necessary changes in the sysctl.conf file and ensure they persist across reboots.

Setting up Traefik: Obtaining a Single Wildcard Let's Encrypt Certificate

This article will guide you through the process of setting up Traefik, a modern HTTP reverse proxy and load balancer, while obtaining a single wildcard Let's Encrypt certificate to secure your domains. Learn how to migrate from Nginx Proxy Manager and boost your observability.

Failing EAP-TLS Authentication on Mobile Phones: A FreeRADIUS Solution for Automatically Connecting iPhones to Network

In this article, we will discuss the issue of failing EAP-TLS authentication on mobile phones and provide a solution using FreeRADIUS for automatically connecting iPhones to the network. By utilizing Baramundi MDM to deploy configuration certificates, network administrators can ensure seamless and secure network connectivity for their users.

How to Avoid Requesting Instructions with OpenSSL Config File in Tech Support

Learn how to generate a certificate request using OpenSSL without specifying instructions in the command line. This article will provide a step-by-step guide on how to use a configuration file to avoid requesting instructions.

Guest OS Red Hat Enterprise Linux 9 Crashing on VirtualBox 7.1.4 upon Windows 11 Upgrade

Experiencing crashes with Red Hat Enterprise Linux 9 as a guest OS on VirtualBox 7.1.4 after upgrading the physical host from Windows 10 to Windows 11? Learn more here.

Optimizing Debian Installation on External USB Drive with Encryption

Learn how to install Debian on an external USB drive with encryption for enhanced security.

Poor I/O Performance with qemu-kvm Native Block Device (Dedicated Disk) in RHEL 9

Users running VM RHEL 9 with qemu-kvm 9.0.0 experience poor I/O performance. This article provides potential solutions based on collected FIO metrics.

Direct Path File Names Commands in Linux for Directory Analysis: A Tech Support Guide

In this tech support article, we will explore the use of direct path file names commands in Linux for directory analysis. Specifically, we will look at an example of analyzing a directory with thousands of files, using the TCGA name pattern ending in .bam. This guide aims to help users navigate the Linux command line and improve their directory analysis skills.

Encapsulating RAW OPUS frames using FFmpeg: Troubleshooting avformat_write_header error

This article provides a solution to an issue encountered while encapsulating RAW OPUS frames using FFmpeg. The error 'Error writing Opus headers: 1094995529 public unsafe class Opu' is addressed in this article.

UEFI Boot: Transferring Debian to a Smaller Drive while BIOS Booting the Computer's Drive

Learn how to transfer Debian to a smaller drive while keeping the computer's larger drive set to BIOS boot. This article covers UEFI boot process and partitioning.

Routing Traffic Via Secondary IP Address Interface on Old Server Setup

Learn how to route traffic through a secondary IP address interface on an old server setup. This article covers the necessary steps for configuring IP routing on Linux, Windows, and MacOS systems.

Windows 11 WSL: Installing New Distro (Ubuntu 24.04) Never Completes

A user with a Windows 11 system and two existing WSL distros (Ubuntu 20.04 and 22.04) encounters an issue while trying to install a new Ubuntu 24.04 distribution. The terminal window opens, but the installation never completes.

Utilizing Unshare Mount as a Bind Mount Alternative in Unprivileged Docker Containers

Learn how to run multiple processes with different views in a single path, using unshare mount as a bind mount alternative in unprivileged Docker containers. Achieve this without the need for complicated configurations or extensive privileges.

Efficiently Route Traffic with Secondary IP Address Interfaces

Learn how to make the most of an old web server with two IP addresses on a single interface. Improve network efficiency by routing traffic through a secondary IP address interface. Maximize server potential and enhance user experience. Read more!

Print Multiple File Paths to a File without Double Quotes & New Line using FFmpeg

Learn how to print multiple file paths to a file without double quotes or new lines using FFmpeg. This tutorial walks you through an example of concatenating multiple video files together with FFmpeg, while automatically generating the input file. By the end of this guide, you'll have a better understanding of how to handle file paths in FFmpeg.

Power Outage Prevents Raspberry Pi from Starting: Linux Python Permission Error

Experiencing issues with a Raspberry Pi that failed to start automatically following a power outage? Learn how to troubleshoot and fix a Linux Python permission error.

Extremely Slow Charging on Ubuntu Macbook Air 2017

User reports extremely slow charging speeds on Ubuntu installed Macbook Air 2017. Power management and hardware checks recommended.

Replacing Soundtracks in an MP4 Video using FFmpeg with Complex Concat Audio

Learn how to replace the soundtrack of an MP4 video with two separate AAC audio files using FFmpeg and complex concatenation.

Restoring Custom Cursor Color when Reattaching to a Program in GNU Screen

Learn how to restore a custom cursor color when reattaching to a program in GNU Screen. This quick guide will help you troubleshoot and optimize your terminal experience.

Understanding Password Hash Parameters in Fedora Workstation

In this tech support article, we will discuss the password hash parameters used by Fedora Workstation in its /etc/shadow file. We will explore the use of yescrypt hash password storage and potential parameters.

MobaXTerm WSL Debian UI Setup Not Working: A Solution

This article provides a solution for users experiencing issues in getting the UI running while connecting Debian Linux via WSL on Windows 10 using MobaXTerm.

Installing AnyDesk on Ubuntu Server 24.04 for Session-Based RDP Connections

Learn how to install AnyDesk on Ubuntu Server 24.04 for session-based Remote Desktop Protocol (RDP) connections, enabling multiple users to work simultaneously.

Determining List of Key Events for PS/2 Keyboard with evtest for Setting Keycodes in a Systemd Service

Learn how to use evtest to determine the list of key events for a PS/2 keyboard and assign keycodes in a systemd service. This tutorial provides a step-by-step guide for working with a 125-key PS/2 keyboard that emits scancodes, not keycodes. Start setting keycodes with a systemd service today.

Fixing Two Windows Boot Managers in a Dual-Boot System: Windows 11 and Fedora (KDE) - GRUB not seeing proper boot manager

Encountered an issue with two Windows Boot Managers in a dual-boot system with Windows 11 and Fedora (KDE). GRUB not recognizing the proper boot manager. Let's explore the steps to resolve this.

Installing Local Plesk Server: OAuth2 Integration with Azure AD

Learn how to install and configure OAuth2 integration between Azure Active Directory and your local Plesk server.

Securely Syncing Data with rsync: Avoiding the Use of Root

Learn how to sync data securely with rsync, without the need for root or sudo privileges. This article covers best practices for using rsync, and why bypassing security measures can be risky.

Syncing Root Directories: A Safe Idea with Rsync?

Exploring the possibility of syncing root directories using Rsync and discussing the potential risks involved.

ChainMudfish VPN: Setting up a WireGuard node for reduced Quake Live ping in China

Learn how to set up a WireGuard node using ChainMudfish VPN to reduce ping and improve gaming experience in Quake Live servers located in China.

Duplicating routing packets with iptables on Linux

Learn how to duplicate routing packets using iptables on a Linux machine. This article covers setting up a client, server, and node middle in a subnet 192.168.100.0/24.

Failed to Use Haproxy with Ubuntu or CentOS for Python App: IP Connect API Solution

This article discusses a common issue when trying to use Haproxy with Ubuntu or CentOS for a Python app that requires an IP connect API. The article provides a solution to the problem by explaining how to set up the API on xyz.app.com.

Equivalent 'Z' Module in Linux Terminal for PowerShell Time-Saving Trick

If you're looking for an equivalent of the PowerShell 'Z' module to save time typing directory paths and jumping around in the Linux terminal, there are similar options available. This article provides some alternatives to achieve easy and fast directory navigation in Linux.

Troubleshooting: MSYS2 - Directory not visible with ls-la command

Users of MSYS2 may encounter an issue where a directory is not visible when using the ls-la command. This article provides some troubleshooting steps to help resolve this issue.

How to Make a Root User Appear on the GUI Login Page in CentOS 8

Learn how to make a root user appear on the GUI login page in CentOS 8. This quick guide covers the necessary steps to update your system configuration and ensure secure access.

How to Make a Root User Appear on the GUI Login Page in CentOS 8

Learn how to make a root user appear on the GUI login page in CentOS 8. This guide includes step-by-step instructions and is SEO optimized.

VPN Server Deployment without Static IP Address: A Guide for Airtel Fiber India Users

Facing issues with your ISP (Airtel Fiber India) provided non-static IP address? Learn how to set up a VPN server without a static IP in this guide. Improve your online security and privacy without worrying about IP address restrictions. Read more to find out how.

Adding Audio Files to LMMS: A Step-by-Step Guide for Windows Users

In this tutorial, we'll guide Windows users through the process of adding audio files to LMMS, a popular open-source music production software. Due to the lack of a direct drag-and-drop feature or context menus, we'll explore alternative methods to import your audio samples. Read more: Discover how to efficiently add audio files to LMMS on your Windows system.

BirdOSPF: WG Interfaces Not Working - Linux Static Routes

Users report issues with BirdOSPF not recognizing WG interfaces for static routes on Linux servers. This article provides potential solutions, including interface type options.

Setting Up a Firewall on Ubuntu Network Gateway for a Virtual Network with VirtualBox

Learn how to set up a firewall on an Ubuntu network gateway for a small virtual network using VirtualBox. Improve network security by configuring firewall settings and controlling incoming and outgoing network traffic. Read more to get started with this simple and effective networking technique.

Ubuntu Server 22.04 Unreachable via SSH After Time: A Troubleshooting Guide

Having trouble connecting to your Ubuntu Server 22.04 via SSH? This article provides a comprehensive guide to solve the issue of an unreachable Ubuntu Server after a certain amount of time. Learn about possible causes, such as IP address changes and public IP usage, as well as effective solutions. Don't let SSH connectivity problems slow you down!