Articles in Linux | UserComp.com

Automatically Highlighting Keywords in Terminal: A SAW Tutorial

In this tech support article, we'll walk you through the process of automatically highlighting keywords in your terminal using SAW. If changing the theme didn't work for you, follow the steps below...

SoundCore P25i Works with Ubuntu: Debian Disconnects and Connects Sound Settings

Learn how to make the SoundCore P25i headphones work with Ubuntu and Debian systems, and how to resolve disconnecting and reconnecting sound settings issues.

Solving Ansible venv runtime exceptions with specific versions

In this article, we will discuss how to solve Ansible venv runtime exceptions by specifying the required versions of packages for your project.

Kali Linux: PostgreSQL Metasploit DB Fails to Start on Multiple Versions

In this tech support article, we address an issue where Metasploit DB fails to start on Kali Linux with PostgreSQL versions 14, 15, and 16.3. Accessible ports 5432, 5433, and 5434 are confirmed active, and running 'sudo pgadmin4 status' returns no errors. Let's explore potential solutions.

Writing Bulletproof URL Encoding/Decoding Functions in Bash

In this tech support article, we will guide you through writing two functions in Bash for URL encoding and decoding. Although there are examples available online, some may not work perfectly for your needs. Let's create robust functions.

Coreboot BIOS Doesn't Recognize Bootable Linux Mint USB on ThinkPad x220

Users report issues with Coreboot BIOS not recognizing bootable Linux Mint USB on ThinkPad x220. This article provides possible solutions to help you resolve the problem.

Prevent Unzipping Nested Folders in Linux: A Solution for .gz Files

Learn how to prevent unzipping nested folders when extracting .gz files in Linux using the unzip command.

Setting up SSH Connection to a Single-Board Computer (Rock4SE) using Wi-Fi Hotspot on Linux Machines

Learn how to establish an SSH connection to a Rock4SE single-board computer using a Linux machine and Wi-Fi hotspot.

Understanding Variable Usage in systemd Unit Files

In this tech support article, we will discuss the concept of defining and using variables within systemd unit files. Unlike executing commands, variables are used to store and reference specific values throughout the configuration file.

Bash Prompt Error: Understanding Segment Causes for 'Freak' Behavior

Learn how to identify and resolve Bash prompt errors causing 'freak' behavior. Understand the error codes and their significance in the Bash environment.

Updating One Repo in APT without Deleting Configuration Files

Learn how to update a specific repository in APT without deleting configuration files. This is useful when working with Dockerfile-based images.

Configure OpenVPN Gateway Server: Home Network to Tunnel Client

Learn how to configure an OpenVPN gateway server to connect a home network to a tunnel client. This step-by-step guide covers the process on an Ubuntu 20.04 server.

Bypassing Secure Boot for Installing Arch Linux Alongside Windows 11

Learn how to bypass Secure Boot to install Arch Linux alongside Windows 11, despite the missing plymouth issue.

Troubleshooting NFTables: Unable to Catch Packets Already Seen on Dell S4810 Switch

This article discusses a common issue with NFTables on a Dell S4810 switch where packets are not being caught even though they have already been seen. Learn how to troubleshoot and resolve this issue.

ALSA Errors: Stuttering Playback with espeak on Tech Support Sites

Users report stuttering playback issues with espeak on tech support sites. Potential solutions include rebooting, unplugging and plugging back USB connections, or DACs.

Identifying and Terminating Idle Mux Sessions on a Debian Server

Learn how to identify and terminate idle Mux sessions on a Debian server to optimize resources and improve security.

Ubuntu 22.04 Power Issue: Tab Keys Change Monitor Color Instead of Powering Off

Users of Ubuntu 22.04 encounter an issue where the power monitor tab keys change color instead of powering off the system. This guide provides a solution.

Understanding TCP Streams: Two Separate Modules for Command Machines

This tech support article explains the concept of TCP streams and how they function in the context of command machines. It covers the two separate TCP modules involved: one that receives commands and another that sends data based on those commands. This article is intended for users with a basic understanding of networking and will provide a brief overview of TCP streams and their importance in managing command machines.

Bash: Understanding Variable Substitution and Return Statement

In this article, we will discuss Bash variable substitution and return statement. We will cover how to use variable substitution in Bash scripts and understand the concept of return statement with examples.

Installing Hybrid Conky Source on Arch Linux with Intel Core i5-5200U and HDGraphics550

Learn how to install the hybrid Conky source on Arch Linux with an Intel Core i5-5200U CPU and HDGraphics550 GPU. Follow this step-by-step guide to enhance your system's visual experience.

Understanding SSH Reverse Tunnels: Finding the Connection Behind Server-Side Commands

In this tech support article, we will explain how to find the connection behind server-side SSH reverse tunnel commands using the 'ssh-R' command and 'ps netstat' commands.

Does Docker IPs NIC Bridging Work?

Understanding Docker IPs NIC bridging and how it connects two networks. Learn about certain hosts and their roles in this setup.

Creating a Desktop Shortcut for Linux in Dual-Boot Systems

Learn how to create a desktop shortcut for Linux in a dual-boot system, avoiding the use of GRUB.

Understanding Windows IP Address 'host.docker.internal': Differences from '172.17.0.1' in Docker

In this article, we discuss the differences between the IP addresses 'host.docker.internal' and '172.17.0.1' in the context of Docker on Windows. We explain their usage and when to prefer one over the other.

Matrox G200eW3 Fails on Debian 12.5: Small Top Left Corner Issue

Users of the Matrox G200eW3 on-board graphics card in Debian 12.5 have reported issues with the small top left corner of the display. This article provides a solution for this problem.

FFmpeg Command Causes Unexpected Reboots on Ubuntu

A simple FFmpeg command executed on an Ubuntu host resulted in a clean reboot four times in a row. The /var/log/syslog file showed no errors or relevant information during the fourth reboot.

Configuring Zsh Completion: Prevent Ambiguous Completions and Show Menu

Learn how to configure Zsh to prevent ambiguous completions and show a menu of alternatives when typing. This article covers the use of the 'zsh-completions' plugin and the 'dontcompleteambiguous' and 'show-menu' options.

Windows 11 BSOD: Installing Ubuntu, SSD Not Detected

A user experiences a Blue Screen of Death (BSOD) every 5 minutes on their Windows 11 laptop. After troubleshooting the OS, they decided to install Ubuntu. However, the SSD is not detected during the installation process.

Troubleshooting Kali Linux Inside VirtualBox: Black Screen at Login

This article provides a solution to the issue of a black screen during login when installing Kali Linux inside Oracle VirtualBox. The problem might be due to incorrect display settings. Follow these steps to resolve the issue.

Wget Error: Certificate <domain> Signed Using Insecure Algorithm - Wget vs Curl

When using Wget to download content from a website, you may encounter an error stating that the certificate for the domain is signed using an insecure algorithm. This issue can be resolved by updating your SSL certificate or using an alternative tool like Curl. In this article, we will discuss the cause of this error and provide steps to fix it.

Booting Custom Kernel with UEFI in QEMU

Learn how to boot a custom kernel using UEFI in QEMU. This guide covers the necessary steps and commands for a successful boot process.

Dual Booting Ubuntu 22.04 and Windows 11: Partition Specific Drive

Learn how to dual boot Ubuntu 22.04 and Windows 11 on specific drives, such as a 500GB SSD for Ubuntu and a 1TB NVMe SSD for Windows, with minimal Windows partition usage.

Failed to Set Root User in mongoDB Docker Container

This article explains how to set the root user in a mongoDB Docker container using a docker-compose.yaml file. The instructions provided are for a Linux system.

Ensuring MySQL Service Starts with systemd

Learn how to ensure MySQL service starts automatically with systemd by adding the required lines to the service file.

Upgrading Ansible from Python 2.7 to 3.8: Playbooks Run Slower?

When upgrading RHEL from Ansible 2.9.27-1.el7.noarch with Python 2.7 to Ansible 5.4 with Python 3.8, playbooks run significantly slower. This article discusses potential causes and solutions.

RAM Upgrade on Kali Linux in Dell Inspiron 1470: Troubleshooting

Learn how to successfully upgrade the RAM on a Dell Inspiron 1470 running Kali Linux, with troubleshooting steps for when the computer doesn't turn on after installing new RAM.

Why Does a Virtual Machine Show a Unique MAC Address After Changing Network Settings?

When changing network settings on a virtual machine, the host MAC address may appear instead of the virtual machine's original MAC address. This article explains why this happens and how to resolve the issue.

Understanding Job Result Dependency Errors in System Logs

Learn about job result dependency errors and how to debug them using system logs. Understand the error message 'Dependency failed: Runs server' and its implications.

Understanding Limitations of Vagrant with VMware Disk Snapshots

In this article, we delve into the limitations of using VMware disk snapshots with Vagrant. Discover the impact on VM functionality and learn how to optimally use these features.

Network Interfaces Stopped Working after Updating to NetworkManager in Gentoo Linux

Users of Gentoo Linux who recently updated their machines and noticed GNOME pulled in NetworkManager may experience issues with their network interfaces. In this article, we will discuss potential solutions to get your network interfaces working again.

PuTTY Support for WebSockets: Accessing Cloud Servers with Serial Console Backup