Articles in Linux | UserComp.com

Sound Differences on Alienware m18 R2 using Arch Mint

Users have reported sound issues on their Alienware m18 R2 laptops when using Arch Mint. This article will help you troubleshoot and resolve the sound problem.

Automatic Logins/Logouts on Multiple Websites with Keycloak

This article explains how to set up automatic logins and logouts for a user on multiple websites connected to Keycloak. We will demonstrate this process on a WordPress site and a Moodle site, both on different subdomains of a domain already networked together.

QEMU VM Super Slow: Host Running Heavy CUDA Processes for Machine Learning

If you're experiencing slow QEMU virtual machines while running long-term Machine Learning jobs using CUDA on the host, this tech support article can help. Learn how to optimize your system for seamless operations.

Secure Git Commits Server: Setting Up Private GPG Key with SSH Login

Learn how to set up a private GPG key for secure Git commits on a server, enabling SSH login. This guide covers the steps for configuring a private GPG key using the HOCKEYPUCK keyserver.

rsync(W10-WSL) doesn't seem to recognize I've deleted files source

This article provides a solution for the issue where rsync in WSL doesn't seem to recognize deleted files in the source directory. The issue occurs when trying to copy a repository using Windows Explorer and a USB stick. A workaround is provided.

Hyper-V: Accessing LAN Devices on Host

This article discusses how to access LAN devices from a Hyper-V host, specifically when running Ubuntu VMs hosting a web service. The guide will provide steps to configure the network settings for seamless communication between the host and the VMs.

Formula Match Values Not Others

This article discusses how to match formula values in various operating systems and software applications. Learn how to handle formula values that are not others using practical examples and solutions.

Understanding VS Code Documentation

This article provides a guide on how to read and understand the VS Code documentation effectively. Follow the steps below to make the most of the VS Code documentation.

Enabling Danish Characters in Cygwin/Bash Environment: A Quick Guide

Learn how to enable Danish characters in Cygwin/Bash environment by setting the appropriate locale. This guide provides a step-by-step process to execute a program with Danish characters using the 'export LANG' command.

Use Events Instead of Reminders in Thunderbird

Learn how to use events instead of reminders in Thunderbird, a popular open-source email client. This guide will show you how to create and manage events effectively.

Setting up Email Server with ISP blocking port 25 on VPS using WireGuard tunnel

This article guides you through the process of setting up an email server on a VPS when your ISP blocks port 25. We will use WireGuard to create a secure tunnel for accessing the server and testing the setup with a basic web server.

Find Identical Content in Different Regions of a File

This tech support article provides a solution for users who want to compare and find identical content in different regions of a file, regardless of the file type. Using command line tools in Linux, users can quickly and efficiently identify duplicate content across regions in a single file.

Troubleshooting Second Monitor via HDMI on Acer Aspire 6930 with Mint 21.3

This article provides solutions to issues encountered when trying to use a second monitor via HDMI port on an Acer Aspire 6930 running Mint 21.3. The laptop's primary monitor goes blank when the second monitor is plugged in.

Enabling Email Monitoring via MSMTP on mdadm RAID Debian

This article describes the process of setting up email monitoring for a RAID array using mdadm and MSMTP on Debian. The instructions are based on the MSMTP documentation and are designed to help users enable email notifications for RAID array events.

Using Emacs Grasp Plugin to Capture Non-Latin Characters in WSL on Windows

This article guides you on how to use the Emacs Grasp plugin to capture non-Latin characters in WSL on Windows. Follow the instructions to set up the plugin and capture characters in your WSL Ubuntu 22.04 browser.

Setting up RAID1 array with mdadm and email monitoring using msmtp on Debian

This article guides you through setting up a RAID1 array using mdadm and enabling email monitoring using msmtp on a Debian system.

Configure Router/OS: Provide Internet Access to WiFi Devices Connected to LAN Ports

Learn how to configure your router operating system to provide internet access to WiFi devices connected to LAN ports. This guide will help you set up your modem, primary WiFi AP (AP-A), and secondary WiFi AP (AP-B) to serve WiFi to all client devices in your house.

Easiest Way to Connect Mail Server on a Remote Windows Box (Thunderbird Running Locally) Using Tailscale

Learn how to connect a mail server on a remote Windows box while running Thunderbird locally using Tailscale. This guide provides step-by-step instructions for setting up Tailscale and configuring Thunderbird for seamless email communication.

Easiest Way to Connect Mail Server Remotely with Winbox and Thunderbird Running Locally

Learn how to connect a mail server remotely while running Thunderbird locally on a Linux box and controlling a remote Windows 11 PC with Winbox.

How to Configure cURL for Authenticated SMTP Connection with Self-Signed CA Certificate

This article covers configuring cURL to establish an authenticated SMTP connection via STARTTLS while sending authentication data with a self-signed CA certificate. Learn how to make cURL trust the unknown CA.

Make cURL establish TLS connection with CA unknown

This article guides you on how to configure cURL to establish an authenticated SMTP connection via STARTTLS, even when the server certificate is signed by an unknown CA. It includes a cURL command example.

Fix Bootloader Using GRUB Rescue: Overcoming Unknown File System Error

This tech support piece aims to help users fix their bootloader using GRUB rescue when encountering an unknown file system error. We will focus on Ubuntu systems running on Oracle VirtualBox, providing a solution-oriented approach to recover from mistakenly deleted files. Stay tuned for an effective and SEO-optimized solution.

How to Upload .uf2 Project Files to LEGO EV3 Brick via USB Cable in Linux (Debian/Ubuntu)

Learn how to upload .uf2 project files to your LEGO EV3 brick using a USB cable in Linux (Debian/Ubuntu). This step-by-step tutorial will help you get started and overcome any initial problems. Perfect for developers looking to use code blocks with their EV3 device.

Thunderbird Calendar: Keeping Reminders Dismissed

Learn how to keep Thunderbird calendar reminders from being dismissed, ensuring you never miss an important event again.

Connecting Shop One to a Domain Controller Located Elsewhere

This article will guide you through the process of connecting Shop One to a domain controller located elsewhere. We will provide steps for both Linux and Windows systems to ensure a smooth connection.

Investigating Unexplained Data Usage and Suspicious Activity

I've been experiencing an issue with mysterious processes running on my system for the past two months. These processes consumed 50GB of data last month, and 5 days this month. I'm unable to identify the source of these processes. Here's how to investigate and resolve this issue.

Fixing 'No File or Directory' Error When Trying FFmpeg Audio Recording on Arch Linux

Having trouble recording audio with FFmpeg on Arch Linux? This article provides a solution to the 'no file or directory' error encountered when trying to record audio. Learn how to fix the issue and successfully record audio on Arch Linux.

Understanding the Difference: Bash Arrays vs Path Expansions

This tech support article explains the difference between Bash arrays and path expansions, which can often sound confusing. Learn how they work and how to use them effectively in your shell scripts.

Upgrade SSH Proxy Connection to Direct Connection for Faster Remote Server Access

Improve your remote server access experience by upgrading your SSH proxy connection to a direct connection. This guide will help you establish a faster and more efficient connection for your tech support needs.

Joining Docker Swarm: Second Machine LAN Network Connection Refused

This article provides a solution for joining a Docker Swarm on a second machine connected to the same LAN network, where the connection keeps failing with the error 'connection refused'.

Enforcing SSH Private Key Passphrase Complexity

This article discusses enforcing complex passphrases for SSH private keys, similar to how PAM's pwquality module enforces user account password complexity. Let's explore the options.

Configuring a Ubuntu Server with Two Network Cards: DHCP and Static IP

This article provides a step-by-step guide on how to configure a Ubuntu server with two network cards, one using DHCP and the other with a static IP address. Learn how to set up and manage your server's network interfaces effectively.

Why does SSHuttle stop running on Mac?

When SSHuttle-v [email protected] 0/0 runs and changes IP, it works great. However, SSHuttle stops running on Mac. I've tried...

Running OpenWRT 23.05 on Netgear C3000 (Comcast Modem/Router)

This article guides you through the process of running OpenWRT 23.05 on a Netgear C3000, a 100NAS Comcast modem/router. We'll discuss how to set up the router in OpenWRT mode, even if the 'Router mode' is currently set to 'no'.

Ubuntu 22.04 and RFC 8200: Fragment Header Exclusions

This article discusses the implications of RFC 8200 on Ubuntu 22.04, focusing on the exclusion of Upper-Layer headers in the first fragment. Fragment discarding mechanisms and their impact on network traffic are also explored.

Properly Upload Certificate Chain on Yealink T467 Web Interface

Learn how to properly upload a certificate chain on Yealink T467 phones using a web server and an ACME server.

UFW Firewall Preventing Gnome Display Screensharing on Fedora Laptop

This article discusses a problem where UFW firewall on Fedora laptop prevents Gnome display screensharing. The article provides a solution to this problem.

Resolving WSL Issue with Windows 11 Update (24H2) and Quick Access

This article provides a solution for the WSL issue encountered after updating Windows 11 to version 24H2. The issue prevents access to WSL, and the expected behavior for WSL Quick Access is not met.

Bluestacks 5 won't completely delete: Non-Google email address login issue

This article provides a solution for users experiencing issues while trying to completely delete BlueStacks 5 when using a non-Google email address for login. The login process goes past the login page and can't be completed.

Ping One Interface on Linux

Learn how to ping one interface on a Linux system with multiple network interfaces and IP addresses.

Pointing Subdomain DNS Record to Specific Port on Ubuntu VPS Server

Learn how to point a subdomain DNS record to a specific port on an Ubuntu VPS server. After pointing the record to the VPS IP, additional steps are needed to make the connection work on port 5000.

Linux: SELinux Prevents Unintentional Sharing of Sensitive Data

SELinux is a Linux kernel security module that helps prevent unauthorized access to sensitive data by controlling the flow of data between processes and between the kernel and user space. This article explains how SELinux works and how to configure it to improve system security.

Adding SEI Side Data Packet to H264 Video Stream using FFmpeg

Learn how to add SEI side data packet to H264 video stream using FFmpeg. This tutorial will help you add server local time information to every frame of your video stream. Follow our step-by-step guide to enhance your video streaming capabilities.

Pinging One Interface on Linux

Learn how to ping one interface on a Linux system, using examples with eth0 and eth1 interfaces.

Set Thunderbird Keyboard Shortcut to Toggle Calendar Pane

Learn how to set a keyboard shortcut to toggle the Calendar Pane in Thunderbird 128.5.2 with the esrTBKeys-lite 2.3.0 add-on.

Autocompletion of Java Source Files in zsh

This article discusses how to set up autocompletion for Java source files in the zsh shell, supporting various Java versions and file extensions.

Can't Get IPv6 Working on Fedora Linux VM with Virt-Manager: Host Configured Correctly

Having trouble getting IPv6 to work on a Fedora Linux virtual machine configured in Virt-Manager, while the host is correctly configured for IPv6? This article provides a possible solution to this issue.

Thunderbird Keyboard Shortcut to Toggle Calendar Pane

This article provides the keyboard shortcut to toggle the Calendar Pane in Thunderbird 128.5.2 with the esrTBKeys-lite v2.3.0 add-on.

Split Video Resolution Changes Using FFmpeg

Learn how to split a video into multiple segments based on resolution changes using FFmpeg. This guide provides a step-by-step process for handling videos with multiple resolution changes.

How to Set Up a StrongSwan Local VPN Server with Private and Public Subnets

Learn how to set up a StrongSwan local VPN server with two subnets, one private and one public, and a proxy host with two network interfaces connected to both subnets. The private subnet has no internet access, while the public subnet does. This tutorial will guide you through the process of creating a secure and private network environment.