Articles in Linux | UserComp.com

New SSH Version Fix for CVE-2024-6387 on Tech Support Site

A new SSH version fix is now available on our tech support site to address the security vulnerability CVE-2024-6387. This fix is specific to the system image cos-101-17162-463-55, which was previously stated to be not vulnerable. However, if you have installed this image, it is recommended to update to the latest version to ensure maximum security. Don't miss out on this important update, read more to learn how to protect your system.

Recursively List Dependencies of Uninstalled Packages in Arch Linux

Learn how to recursively list dependencies of uninstalled or not yet installed packages in Arch Linux, even when the package repository is not available. This tutorial covers pacman command line options and utilities for managing package dependencies.

How to Access a Remote Machine using SCP and SSH Tunnel with Reusing Proxy Authentication

Learn how to access a remote machine using SCP and SSH tunnel with reusing proxy authentication. This method is useful when you have a way to access the machine using a token obtained from 'OneIdentity Safeguard Privileged Passwords'. This article will provide a step-by-step guide for a secure and efficient remote machine access.

Equivalent of pip install modern for Debian-like systems in Python 3

Learn about the equivalent command for pip install modern on Debian-like systems in Python 3 for changedetection.io's Playwright. Avoid Docker installations and use incus instead following the given instructions.

Can't Boot: Drive Selection & GRUB Specification Issues

Having trouble booting up your system after installing GRUB or selecting a drive? Our tech support team is here to help you get to the bottom of it. Learn about potential issues with fdisk, HDD, IHP, Elite X2 OS, SSD, Windows 11, and external HDD (Kali Linux) that might be causing your boot issues.

Fixing VirtualBox RDP Connection Issues between Windows 10 and Kali Linux

Having trouble connecting to a Kali Linux virtual machine through RDP in VirtualBox from a Windows 10 host? This guide provides steps to troubleshoot and resolve the issue.

Understanding the 'Defaulted Container' Error in Kubectl Logs

In this tech support article, we will discuss the 'Defaulted container' error message that sometimes appears in kubectl logs. We will explain what this error means, and provide some suggestions for troubleshooting and resolving it. If you're a Kubernetes user and you've encountered this error, this article is for you.

How to Recover a BTRFS Disk Partition from Power Failure on a Non-System 4TB Western Digital Disk (WD4000F9YZ)?

This article provides a guide on how to recover a BTRFS disk partition on a non-system 4TB Western Digital disk (WD4000F9YZ) after a power failure. Learn how to check the disk for errors, repair the file system, and mount the partition. Follow the steps to ensure data integrity and prevent data loss. Optimized for SEO using relevant keywords.

How to Redirect C++ Console Output to a Single Terminal Pane?

In this tech support article, we will discuss a common problem faced by developers writing C++ files that create multiple panes in different threads, each with its own console output. The solution involves redirecting the console output to a single terminal pane. This article aims to provide a step-by-step guide for achieving this, using SEO-optimized keywords for better visibility.

Rename Systemd Service without Restarting Service Server: A Tech Support Guide

Learn how to rename a Systemd service without restarting the service server. This guide provides a step-by-step tutorial for troubleshooting 'Loaded: not-found' status with the systemctl command. Follow our tech support tips to ensure a seamless transition.

Update Discord on Debian/Ubuntu with a Simple Command - No .deb File Download

Learn how to update Discord on Debian or Ubuntu systems using a simple command, without the need to download the .deb file from the website. This method ensures that you have the latest version of Discord, while saving time and bandwidth.

Automatically Restart SSH Tunnel for Seamless Connectivity in Coffee Shops and Beyond

Stay connected to your database time with ease, even in coffee shops, by leveraging USB connections from your iPhone to your Mac for unlimited 5G. Learn how to automatically restart SSH tunnels for a seamless experience.

NFSv4.2 Slow Local RAM Disk Export on Dell R720 with Xeon E5-2680v2 and Proxmox

In this tech support article, we tackle the issue of slow NFSv4.2 local RAM disk export on a Dell R720 server running Proxmox and Arch Linux. We analyze the cause and provide a solution to optimize the performance.

How to Close SSH Connection after Idle Time with no Key Pressed

Learn how to automatically close SSH sessions after a certain period of inactivity, even if no key has been pressed. This can help improve security and prevent unauthorized access. Read more to find out how to implement this on your system.

Fixing Failing Launch Instance Issue in OpenStack with Self-Service Network

Learn how to troubleshoot and fix the issue of failing to launch instances in OpenStack using a self-service network configured with VXLAN. This SEO-optimized article provides a solution to the problem and invites the audience to read more.

How to Use Linux Vim's System Clipboard Feature with Windows 10 Terminal and Remote Machine

Learn how to use the system clipboard feature in Vim on a remote Ubuntu machine while working in the Windows 10 terminal. This guide will walk you through enabling the clipboard feature in Vim and transferring text between the terminal and your remote machine.

Ansible Task 'Gathering Facts' Fails: Empty Output and No Escalation Message - Troubleshooting Guide

This guide helps Ansible users troubleshoot a 'Gathering Facts' task failure that results in empty output and no escalation message on a Red Hat 9.4 (custom build) managed node, using Python 3.9.18 and Ansible Core 2.16.8.

Fixing SSL Handshake Error: Not Connecting to Server Providing Certificates Signed Using SHA1RSA (Linux, OpenSSL 3)

Having trouble connecting to a server due to a certificate signed using SHA1RSA? Learn how to resolve the SSL handshake error on Linux using OpenSSL 3. Follow our step-by-step guide to ensure a secure connection.

Transform Your Tech Support Site with FFmpeg: Turn 2 Images, Last Frame Overlay, and 5 Second End-Roll

Elevate your tech support site with FFmpeg! Learn how to transform two images, overlay the last frame, and add a 5-second end-roll. Customize the last frame with a 0.5-second color transition and fade to gray with increased blue tones.

Understanding SMTP Server Limits for Direct Email Relays with Postfix

Learn about SMTP server limits when setting up a Gmail relay mail server as the final destination, not another relay, and how Postfix can help. This SEO-optimized abstract introduces the topic of SMTP server limits and direct email relays using Postfix.

Secure Your Network with Proxmox Firewall: How to Block Traffic and Allow Specific IP Ranges

Learn how to set up and configure the Proxmox firewall to secure your network using Netbird (a Wireguard-based VPN) on a Proxmox PVE 8/Debian 12 server with various containers. This tutorial covers Proxmox firewall basics, such as blocking traffic and allowing specific IP ranges through SSH.

Can't Use PipeWire: Failed to Initialize PW Context on Bliss OS QEMU

Having trouble running Bliss OS on QEMU with an error related to PipeWire? Learn how to troubleshoot this issue and get your virtual machine up and running.

Fixing VirtualBox Error: Kernel Driver Not Installed on Ubuntu 22.04.4 LTS

Learn how to fix the 'Kernel driver not installed' error in VirtualBox 6.1.32 while hosting VMs on Ubuntu 22.04.4 LTS. Follow our step-by-step guide to get your virtual machines up and running again.

Route Traffic through Wireguard Tunnel on Mikrotik RouterOS

Having trouble routing traffic through a Wireguard tunnel on your Mikrotik RouterOS? This article provides a solution to initial data of network structure 192.168.1.0/24. Learn how to properly configure your Mikrotik router to route traffic through a Wireguard tunnel.

Solving the Image Display Issue in Linux Ubuntu 24.04 LTS: A Tech Support Guide

Having trouble displaying images in Linux Ubuntu 24.04 LTS? Launching the terminal may not be enough. This tech support guide provides solutions to help you get access and display images, following every instruction prompt.

Connecting Two Devices in Different Subnets: A Tech Support Guide

Learn how to connect two devices that exist in different subnets, including a solution using iptables' NAT configuration. This guide provides a concise and SEO-optimized overview of the problem and solution.

How to Join Multiple Videos with FFmpeg and Crossfade Transitions

Learn how to join multiple video files using FFmpeg and add crossfade transitions between them. This guide will walk you through the process of combining your videos seamlessly on Linux systems.

Enabling GPG Keyring for External GPG Key IDs in Tech Support

This article discusses the importance of enabling the GPG keyring to use external GPG key IDs for email accounts in tech support. Despite the ability to decrypt and sign without issues, many users have not yet enabled the public key system keyring. Discover how to enable it today.

How to Move and Rename a File List: PI-hole SRV Teleporter Example

Learn how to move and rename a file list using a PI-hole SRV Teleporter example. This guide provides step-by-step instructions for managing your files efficiently. Optimize your tech support skills with this useful tip.

How to Set USB Ethernet Interface Connection Priority in Ubuntu

Learn how to set the specific USB Ethernet interface connection priority in Ubuntu using Netplan, to ensure automatic selection at boot. This tutorial will provide step-by-step instructions and useful tips.

Fix FFmpeg-Induced Sound Quality Deterioration in MP3 Audio

Having trouble with sound quality after using FFmpeg to add background sound effects to your MP3 files? Learn how to fix FFmpeg-induced sound quality deterioration and optimize your audio for improved clarity and richness.

Encountering Issues While Encoding VP9 Files with FFmpeg: Video Dimensions Greater Than 16256 Pixels

This article provides guidance on addressing a common issue faced when encoding VP9 files using FFmpeg, specifically when video dimensions exceed 16256 pixels. Suggested solutions and alternative approaches are discussed to help overcome this limitation.

Enabling Read-Only DMG Sharing on Synology NAS for SMB: A Tech Support Guide

Learn how to create and share encrypted DMG files with full read/write permissions on a Synology NAS, and turn them read-only even when empty, for secure and convenient tech support. This guide is optimized for SEO.

Fixing Proxmox 8.2.4: Ping Failure to LXC/MQTT Broker on VLAN 30

In this tech support article, we will tackle a common issue where a ping request from a Proxmox 8.2.4 host fails to reach an LXC or MQTT broker on VLAN 30, while other devices on VLAN 10 and VLAN 30 are reachable. Let's dive into the possible causes and solutions.

SSH Connection Refused - Troubleshooting Guide

Having trouble connecting to a remote server using SSH? This article provides a troubleshooting guide for resolving 'connection refused' errors, even when you can ping the remote server and login locally. Learn how to diagnose and fix the issue.

SSH Connection Refused: Troubleshooting Guide for Tech Support

Having trouble connecting to a remote server using SSH? You can ping the remote server, and SSH localhost works fine, but when you use SSH to connect to the remote server, it gives you a 'connection refused' message. This guide will help you troubleshoot and fix the issue.

FFmpeg Reports "No Space Left on Device", But There Is: A Guide to Fix Enough Space Issue

Having trouble processing a large number of audio files with FFmpeg due to the 'no space left on device' error, even though there is enough space? This article offers a solution to this issue, explaining how to cut large audio segments without encountering this error.

Enabling NGINX to Access Local Network Resources via VPN

Looking to allow NGINX to access local network resources via VPN? Learn how to set up secure and efficient access to your internal network, including websites, the Internet, and other accessed local network. This guide will help you configure NGINX with popular VPN clients like BitWarden and beyond.

Ubuntu 22.04 LTS to 24.04 LTS Update: Fixing PPA Purge Errors

Having trouble updating Ubuntu 22.04 LTS to 24.04 LTS due to PPA-related errors? Learn how to use 'ppa-purge' to fix the issue and smoothly upgrade your system.

Enabling GD Extension for PHP 8.3.10 in Apache 2.4.62 on Termux (Debian Linux-like environment on Android)

In this tech support article, we will guide you through the process of enabling the GD extension for PHP 8.3.10 in Apache 2.4.62 on Termux, a Debian Linux-like environment on Android. Follow the developers' provided fix to restore the lost gd extension.

Boot Failure in Fedora Emergency Mode: Failed to Mount boot-efi.mount at /boot/efi

Learn how to troubleshoot a boot failure in Fedora 38 on a Dell XPS 13 dual-boot system with Windows 11. The GRUB boot selection menu fails to start Fedora, and emergency mode reports a failed mount at /boot/efi. We provide a solution to help you get your system up and running.

Can't Reach Another Computer via OpenVPN on CentOS (Azure IP: 10.5.0.4, OpenVPN IP: 10.6.0.4)

Having issues reaching another computer via OpenVPN on your CentOS machine with Azure IP 10.5.0.4 and OpenVPN private address 10.6.0.4? This article provides a possible solution for connecting your networks. Read more to learn how to troubleshoot.

Exposing Docker Container to External Networks on Ubuntu 22.04.3 LTS

Learn how to make a Docker container with exposed ports available to external networks on Ubuntu 22.04.3 LTS. This tutorial will guide you through the process of using curl to check for user authentication and configuring Docker networking.

Fixing OpenVPN Error: Unrecognized Option Missing Parameters

In this tech support article, we will tackle the OpenVPN error message 'unrecognized option missing parameters'. This issue can occur when configuring the OpenVPN client and can prevent a successful connection. We will go through the steps to identify and resolve this error to ensure a smooth and secure connection.

Multi-Region Keycloak Deployment with Database DR Configuration

Learn how to deploy Keycloak in multiple regions and configure disaster recovery (DR) for your application by writing the endpoint URL of your database (Azure Postgres Flexible Server) in Region 1. This tech support article provides a step-by-step guide for Keycloak deployment and DR configuration.

Adjusting Monitor Colors with 3D Aglyph, Xrandr, and Gamma

Learn how to adjust the colors on your monitor using 3D Aglyph, Xrandr, and gamma settings. Change the red and blue values to your preference for a personalized viewing experience. This guide is designed for Linux users, with potential applications for other systems.

Error Updating Ubuntu on WSL: Cant link /usr/lib/wsl/lib/libnvoptix_loader.so.1 libnvoptix.so.1

Having trouble updating or installing packages using sudo apt in Ubuntu WSL due to an error getting /sbin/ldconfig.real: Cant link /usr/lib/wsl/lib/libnvoptix_loader.so.1 libnvoptix.so.1? Learn how to fix it with this guide.

Could Unforeseen Issues Arise When Changing Sudo Required Access Pass Command?

Making changes to the sudo required access pass command in a Linux system can be sensitive. This article discusses potential issues that may arise when making such changes and why it's crucial to exercise caution. Read more to learn about tech support for Linux password utilities.

How to Resolve Hostname with mDNS on Ubuntu 22.04 to Access Local Network Devices

Learn how to resolve hostnames with mDNS on Ubuntu 22.04 to easily access devices connected to your local network. With mDNS, you can ping devices using their hostnames and avoid the hassle of remembering IP addresses.

How to Set Battery Profile for Power Savings in Linux?

Learn how to set battery profile for power savings in Linux. This article will guide you through the process of adjusting your battery settings for optimal power savings. Discover the different profiles available, such as the powersave and normal modes, and how they can help you conserve battery power. Read more to find out how to set the perfect battery profile for your needs.