Articles in Linux | UserComp.com

Starting Tomcat with Systemd Service

Learn how to start Tomcat using a Systemd service file. This article provides a unit file example and instructions for setting up the service.

TACACS+ Accounting with Linux Client: A Comprehensive Guide

Learn how to implement and configure TACACS+ accounting using a Linux client. This comprehensive guide covers the necessary steps and tools for effective network security management.

Controlling Output Format: date/tones in Command Line - Tech Support

Learn how to use the date/tones command in the command line to control output format and display specific dates as 'Mon 18/03/2024' or 'Mon -18/03/2024'.

Reversible Files Splitting: Tool for Large Directory Division

Learn about a tool for reversible files splitting in large directories. This tool splits larger files into chunks of up to 50MB, keeping the original file intact. Find out how it works.

Passwordless SSH from Linux (Fedora 39) to Windows 10 (Works with Domain Accounts, Fails with Local Users)

This article explains how to set up passwordless SSH authentication from a Linux (Fedora 39) system to a Windows 10 (LTSC build 17763) machine using OpenSSH. It covers the configuration for both the Linux and Windows systems, and addresses issues encountered when using domain accounts versus local users.

Unable to Change Subtitle Font Size in FFmpeg

This article explains how to modify the font size of subtitles in FFmpeg using the command line. The instructions provided are for Linux users.

Troubleshooting: Kubernetes/kubeadm - Control Plane API Server Rebooting

New to Kubernetes, trying to set up DDNS containers in practice and moving on to more complex stuff. Originally started with Minikube and IPv6 DDNS containers, now encountering an issue with the Control Plane API Server rebooting. Let's explore some possible solutions.

Understanding Postfix Lookup Table in Tech Support

When trying to send mail locally using Postfix, the concept of a lookup table might come up during troubleshooting. In this article, we'll discuss what a Postfix lookup table is and how it's used.

IPv6 Routes Mysteriously Disappearing in Linux: Troubleshooting Complex WireGuard Setups

Learn how to diagnose and fix IPv6 routes that disappear in Linux systems with complex WireGuard setups. This article covers common issues and provides solutions for automated network device management and forwarding settings.

CP Command Can't Locate Desktop Files: Troubleshooting b43 Firmware

Users encountering the issue of 'CP Command Can't Locate Desktop Files' while trying to copy b43 firmware files using the command prompt. This article provides solutions for Linux, Windows, and MacOS.

Switching to Forward Requests in PowerDNS: Troubleshooting NXDOMAIN Issues

Learn how to troubleshoot NXDOMAIN issues when switching from resolving queries to forward requests in PowerDNS. This article provides a step-by-step guide and suggestions for optimizing your PowerDNS configuration.

Possible Way to Temporarily Disable Samba Share without Server Restart on Tech Support Sites

Learn how to temporarily disable a Samba share on a Linux server without the need for a server restart. This solution is useful for tech support sites where users access the share from both Linux clients and Windows devices.

Understanding the '--human-readable' Option in du Command

The '--human-readable' option in the 'du' command is used to display disk usage statistics in a human-readable format. This option makes the output more readable by displaying sizes in units of kilobytes (K), megabytes (M), gigabytes (G), and terabytes (T). In this article, we will explain the basics of using the 'du' command with the '--human-readable' option and provide some examples.

Modifying Photo Date-Based Names in Nextcloud: A Tech Support Guide

Learn how to modify photo date-based names in Nextcloud using regex and various operating systems. This tech support article explains the process step-by-step.

Disabling Pagedown Key in Xorg: A Linux Tech Support Guide

Learn how to disable the Pagedown key in Xorg environment using a Linux tech support guide. Follow the given instructions to determine the keycode and use xmodmap to disable it.

Setting Up execute permission for root user in Proxmox for dmesg directory

In this tech support article, we will guide you through the process of setting execute permission for the root user on the dmesg directory using Proxmox. This is necessary to see error messages from the screenshot of the CLI.

Troubleshooting GNOME Menu Disappearance after ArcMenu Extension Removal

Learn how to troubleshoot and resolve the issue of the GNOME menu disappearing after removing the ArcMenu extension.

Understanding Background Script Execution using nohup on Ubuntu Server

Learn how to run scripts in the background on an Ubuntu server using the nohup command and understand the output file creation.

Routing Traffic from/to Webapp eth0 Instead of tun0 (VPN) in Debian

Learn how to route traffic for a web application over eth0 instead of the default tun0 interface in Debian, bypassing VPN connections.

Installing Anbox on Ubuntu 24.10: Troubleshooting App Manager and Crashing Anbox Icons

Learn how to troubleshoot common issues when installing Anbox on Ubuntu 24.10, including a stuck app manager and crashing Anbox icons.

Verifying ELF File Signature with ld-linux-x86-64.so.2 in Buildroot 4.9.20

Learn how to verify the signature of an ELF file using ld-linux-x86-64.so.2 in Buildroot 4.9.20.

Recovering RAID1arrays with Single Device Reshape

This article explains how to recover data from a RAID1 array when one disk needs to be reshaped.

Linux PowerSave Governor Not Controlling CPU Frequency on ThinkPad P1

Users of the ThinkPad P1 laptop running Ubuntu 22.04 with Linux kernel 5.15.0-43-generic are reporting that the PowerSave governor is not effectively controlling CPU frequency, leading to high CPU activity and reduced battery life. This article provides possible solutions to the issue.

Troubleshooting MINGW's 'runAuto07pm' on Windows 7: auto.env.sh not working

Users report issues with the 'runAuto07pm' script in MINGW on Windows 7, specifically with the auto.env.sh file not functioning when called with the source command.

Setting up UDMP VLANs with Wireguard Site-to-Site IPSec

Learn how to set up UDMP VLANs with Wireguard Site-to-Site IPSec for seamless network connectivity between sites.

FFmpeg: VP9 HDR10 4k Input to HEVC Output Not Saving

This article discusses an issue encountered when trying to encode a 4k VP9 HDR10 input video into HEVC output using FFmpeg. The output file does not save with the desired format. This article provides a suggested solution using the command line.

Configuring Two Ubuntu Servers on LAN for Apache, Mail Server, Nextcloud, and Samba

Learn how to configure two Ubuntu 22.04 servers on a Local Area Network (LAN) to run Apache web servers, Mail Servers, Nextcloud, and Samba for local sharing.

Bi-Directional Clipboard Not Working Properly in VirtualBox Debian Guest

Users report issues with bi-directional clipboard functionality not working properly in a Debian guest operating system under VirtualBox. Despite configuring the settings, drag-and-drop copying between the host and guest OS remains problematic.

Getting ZFS Working on Alpine Linux 3.18: Installing Packages and Modprobe

This article outlines the steps to get ZFS working on Alpine Linux 3.18 by installing the required packages and using modprobe. After installing the packages and rebooting, the ZFS pool should be created and coupled with datasets.

Unable to Create Ubuntu Install Media on Surface Pro 7

This article provides a solution for users who are unable to create Ubuntu install media on their Surface Pro 7 using Rufus. The article includes steps to create the install media using a different method.

Excluding Subfolders when Copying Files between Directories using rsync in Arch Linux

Learn how to exclude subfolders when copying files between directories using rsync in Arch Linux. This article provides a step-by-step guide with examples.

Making Windows Executables Run on Linux: A Comprehensive Guide

Learn how to run Windows executables on Linux systems using various methods such as Wine, Cygwin, and WSL. Compatibility issues and troubleshooting tips included.

SecureBoot and Kernel Rejection of Self-Signed Modules in Linux on Intel NUC

When enabling SecureBoot on a Linux system based on Intel NUC using a special distribution like BalenaIoT, self-signed modules may be rejected. This article explains the cause and potential solutions.

ProtonVPN: Fixing Linux Killswitch Stuck Issues

Experiencing issues with ProtonVPN's Linux killswitch getting stuck? Learn how to resolve this problem and get your settings back on track.

Ubuntu 20.04: Eliminating '-auth' in Xorg process list

Learn how to eliminate '-auth' from the Xorg process list in Ubuntu 20.04. This article provides a step-by-step guide to modify the Xorg configuration file and restart the X server.

Setting Up a Terminal-Based Android Distro: A Step-by-Step Guide

Learn how to install and configure a terminal-based Android distro. This step-by-step guide covers the basics, ensuring a smooth setup process.

Debian 12: Systemd Fails to Start Expected Services with NFS Mount and ZFS Network-online.target

A user reports an issue where Debian 12 system fails to start expected services when mounting an NFS share and requiring ZFS network-online.target. The user tried using /etc/fstab but it keeps loading. In this article, we will explore the possible causes and solutions for this problem.

Understanding Window Specific URL Curl Output with Bash

In this article, we will explore how to retrieve and understand the window specific URL output using Curl and Bash on Linux.

Apache Balancer Member Configuration: IP Address Failover

Learn how to configure Apache Balancer Member for IP address failover. This tutorial covers the setup of two IP addresses, 10.10.10.10 and 20.20.20.20, for a secure connection using IPsec tunnels.

Installing Skype for Linux using Debian packages (8.114.0.214)_amd64

Learn how to install Skype for Linux using Debian packages with this step-by-step guide. Follow the instructions below to download and install the latest version of Skype for Linux on your Debian system.

Measuring Current DPI of Mouse in Linux: Simple and Effective Ways

Measuring the current DPI (dots per inch) of a mouse in Linux can be important for optimizing display settings. Here are some simple and effective methods to measure DPI using both software and hardware approaches.

How to Bind WireGuard Network Interface via IP Address instead of Interface Name in Linux

Learn how to bind WireGuard network interface via IP address instead of interface name in Linux for specific applications that require it.

Safely Copying Entire Ubuntu Root Directory to Different Drive (System Drive) via SSH

Learn how to safely copy the entire Ubuntu root directory from one drive (SSD) to another (HDD) using SSH.

Mapping IPv6 Addresses to Docker Containers: A Step-by-Step Guide

Learn how to assign and map IPv6 addresses to Docker containers for seamless communication between containers and the host network.

The Correct Way to Rename a Mount Point in Ubuntu: /media/mario/Files1 to /media/mario/Files

Learn the correct way to rename a mount point in Ubuntu, specifically renaming /media/mario/Files1 to /media/mario/Files.

Recovering Linux Icon on WSL.localhost Windows 10 Desktop

One day, the Linux icon on your WSL.localhost Windows 10 desktop disappears. This article explains how to recover it.

Unmounting BTRFS Home Directory: A NixOS Perspective

Learn how to unmount a BTRFS home directory on NixOS system. Follow this step-by-step guide to ensure a successful operation.

Troubleshooting Wireguard Server on Raspberry Pi: Static External IP Address

Users report issues with their Wireguard server on Raspberry Pi, which seems to have stopped working after setting up a static external IP address (192.168.2.0/24). This article provides potential solutions and steps to resolve the issue.

Installing Newer Video Drivers on Manjaro/Arch: A Tech Support Guide

Learn how to install newer video drivers on Manjaro or Arch Linux to potentially improve performance and compatibility. This tech support guide covers both closed and open-source drivers.

Inbound Connection Route 0.0.0.0: Server Original URL Display Issue

Users reported seeing a 404 error instead of the original URL when an inbound connection was made to the server with IP address 0.0.0.0. Instead, the server displayed a different IP address (0.0.0.0). This article explains possible causes and solutions for this issue.