Articles in Linux | UserComp.com

Java Application Requires Pinging Third-Party Websites: Squid Proxy Setup with Basic Auth for Enhanced Security

Learn how to set up a Squid proxy with Basic Auth for enhanced security while allowing your Java application to ping third-party websites. This guide covers the necessary steps for configuring Squid and Java.

WebStorm Automatically Kills Existing Sessions in Linux: A Frustrating Issue

Users report an odd issue where WebStorm IDE automatically kills existing sessions in a Linux environment, preventing them from reconnecting to their SSH servers via PuTTY. In this article, we explore the possible causes and solutions to this frustrating problem.

Disk Read Error Occurred During Gparted Resize/Move Process on CPartition: Power Outage

This article discusses a disk read error that occurred during a Gparted resize/move process on a CPartition, which was caused by a power outage. It provides suggested solutions to help users resolve this issue.

Managing Encrypted Swapfiles/Volumes on Remote Dedicated Servers: A Simple Solution

Learn how to manage encrypted swapfiles or volumes on remote dedicated servers using LUKS. This article covers manual mounting, boot behavior, and fstab settings.

Increasing VLC RAM Buffer for Offline Files using CLI: A Comprehensive Guide

Learn how to increase the VLC RAM buffer for offline files using Command Line Interface (CLI) on various operating systems. This article provides step-by-step instructions and screenshots for Linux, Windows, and MacOS.

Enabling Legacy Settings and Installing Ubuntu Jammy 22.04 with RW_Legacy

Learn how to enable Legacy settings and install Ubuntu Jammy 22.04 with RW_Legacy on a minimal live image. Get a clean boot and update libraries.

Accessing Docker Mail Server within Another Docker Container: Mailserver Vaultwarden (Bitwarden_rs)

This article explains how to access the mail server provided by another Docker container, specifically Mailserver Vaultwarden (Bitwarden_rs), which offers SMTP IMAP services.

Accessing Docker Mail Server: Vaultwarden (Bitwarden_rs) and Mailserver

Learn how to access the SMPT/IMAP services of two Docker containers, Vaultwarden (Bitwarden_rs) and Mailserver, running on a host.

Understanding Nginx Rewrite Inside Location: Break Flag

In Nginx, the 'break' flag can be used inside a location block for rewrite rules. This article explains what the 'break' flag does and when to use it.

Linux Mint 21.3 Users Experience Stuttering with Wine 6.0.3 and World Warcraft 3.3.5a

Users of Linux Mint 21.3 who have installed Wine 6.0.3 and the World Warcraft 3.3.5a client have reported experiencing noticeable stuttering during gameplay. This issue may affect the overall gaming experience and could be caused by various factors.

OSSL Cipher Unpad Block: Bad Decrypt Error in Red Hat Script

This article explains the cause and solution of the OSSL_CIPHER_UNPAD_BAD_DECrypt error encountered while decrypting a file using an OpenSSL script in a Red Hat environment.

Unable to Decrypt System Partition with Veracrypt: Bootloader Overwritten

Learn how to troubleshoot and recover a system partition that cannot be decrypted with Veracrypt due to a bootloader overwrite issue. This article focuses on a Windows 7 system with two partitions.

Kali Linux Won't Boot GUI After Configuring Nvidia Sync

Users encountering issues with Kali Linux not booting to the GUI after configuring Nvidia Sync. This article offers potential solutions.

Forwarding NMEA0183 Traffic from One Host to Another on Different Ports

This article explains how to forward NMEA0183 traffic from one host (192.168.11.100) to another (192.168.11.110) using different ports.

Highlight Video: Single Image - Linux Tools for Superimposing Ball Motion

Learn how to use Linux tools to create a highlight video effect of a ball bouncing around by superimposing single images.

Common Folder Permissions Issues During Linux Distro Installation

A new inexperienced computer guy, let's say running MSI 11 in a 693 laptop, finds himself facing folder permissions issues during Linux distro installation. In this article, we'll discuss common folder permissions problems and solutions.

Troubleshooting AWS SiteWise Edge Publisher Log Error on Ubuntu 24.02 VM

This article provides a solution for an error encountered in the AWS SiteWise Edge Publisher log file on a Ubuntu 24.02 VM.

Configuring CUPS: Storing Printer Configurations in Users' Home Directories

Learn how to configure CUPS (Common Unix Printing System) to store printer configurations in users' home directories instead of the global /etc/cups/printers.conf file.

IPTables: NAT Source Address Bridge Interface on Linux

This article explains how to configure IPTables to use a bridge interface as the source address for Network Address Translation (NAT).

Samba 4.19: Raising Functional Level Error

This article explains an error encountered while trying to raise the functional level of a Samba 4.19 server. The schema update took a long time and finished successfully, but raising the functional level resulted in a second error.

Changing DNS to Another IP for HTTPS: Recommended Settings and Configuration for systemd

Learn how to change your DNS settings to another IP address for HTTPS connections on a systemd-based Linux system. Important: Ensure you understand the implications before making any changes.

K3S Cluster Issue: Failed to Query BPF Programs with cgroup configHooks process

Encountered an issue with a K3S cluster where nodes couldn't define their config files due to an API server not running. Investigated log files and found a failed `bpf_prog_query(BPF_CGROUP_DEVICE)` call within the `cgroup configHooks process`. In this article, we will explore possible solutions to resolve this issue.

Security Onion VM Not Picking Traffic from Mirrored Ports on Netgear Switch

This article explains how to troubleshoot the issue of Security Onion VM not picking traffic from mirrored ports on a Netgear switch. Learn how to configure the switch and Security Onion VM for proper traffic mirroring.

FFmpeg Video: Poor Black Depth - Solution for Faded Areas

Learn how to fix poor black depth and faded areas in FFmpeg videos. This article provides solutions for both Linux and Windows users.

Temporarily Forcing EFI Unbootable Restore on Linux (Terminal) for Windows Server

This article provides instructions on how to temporarily force an EFI unbootable restore using the terminal in Linux for a Windows Server.

Setting up Geoserver with Debian 12 and Tomcat 9: A Tech Support Guide

Learn how to install and configure Geoserver on Debian 12 using Tomcat 9. Follow this tech support guide for a seamless setup.

Nginx on Raspberry Pi 5: Allowing Streaming and Download of Videos

Learn how to configure Nginx on Raspberry Pi 5 to allow streaming of videos and full downloads. Overcome trial errors and ensure smooth playback for users.

SSH Connection Fails: Troubleshooting SSH Issues on Linux Mint

This article covers common issues and solutions for SSH connection failures on Linux Mint. Learn how to troubleshoot and resolve SSH issues with local computer connections.

Resolving RGBx to RGBA Issue with gstreamer for Screen Recording

While trying to record the screen using gstreamer and encode the output to h264, an RGBx to RGBA conversion issue arises when using XorgImageSrc as the source. This article explains how to resolve the issue by adjusting the pipeline.

Connection Error While Configuring PostgreSQL basebackup with nxs-backup: PSQL Connect Error

This article provides a solution for a common issue encountered while configuring PostgreSQL basebackup with nxs-backup: a PSQL connect error due to the non-existent database user. We will guide you through editing pg_hba.conf to resolve the issue.

Increasing EFI Partition Size for Dual Booting Debian 12 and Windows 11

Learn how to increase the size of the EFI partition to dual boot Debian 12 and Windows 11. This tutorial covers creating a new EFI partition using diskpart and shrinking the Windows 11 partition.

Boost Headphone Output Level at Boot Time for Raspberry Pi Debian Audio Player

Learn how to boost the headphone output level during boot time for a Raspberry Pi Debian audio player using the amixer command.

Understanding Docker Compose Network Isolation on Linux

Learn how Docker Compose manages network isolation on Linux systems and troubleshoot issues with bridged networks.

WSLv2 Compatibility on ARM64 Devices: Surface Laptop 7 and CoPilot

This article explores the compatibility of WSLv2 on ARM64 devices, specifically the Surface Laptop 7 and CoPilot. Learn how to use WSLv2 on these machines.

Linux: Docker Compose - Zabbix Host Ping: Container Not Responding in Another Bridged Docker Network

In a Docker environment running on a Linux host with two Docker networks, Zabbix fails to ping a container when both containers are in different bridged networks. This article provides an overview and suggested solutions to resolve the issue.

Tmux Prefix Not Working: Forcing ~/.tmux.conf

Experiencing issues with the Tmux prefix (C-b) not working as expected? Try forcing the use of your ~/.tmux.conf file.

Excluding Large Subdirectories from Daily Backup

Users with large home directories or servers containing two substantial subdirectories often feel unnecessary to be backed up daily. Here's how to exclude those directories from your backup process.

Crossfading Audio Files: Extracting Four Crossfade Sequences with FFmpeg

In this article, we will learn how to extract four crossfade sequences from two input audio files using FFmpeg. We will cover the command-line process step by step.

QEMU-KVM: VM Freezing with Nvidia GPU PCI Passthrough

Experiencing VM freezing issues when using Nvidia GPU with QEMU-KVM? Learn how to troubleshoot and resolve this common problem.

VirtualBox on Ubuntu 22: Bridged Network Issue with Home WiFi via Windows 10

This article provides a solution for users experiencing issues with connecting to Eduroam WiFi using a VirtualBox VM on Ubuntu 22 with bridged network settings and a Windows 10 host.

Convert Firefox .jsonlz4 file to .json using JeffersonScher's Website

Learn how to convert Firefox .jsonlz4 files to regular .json format using JeffersonScher's website. Follow the instructions below.

Adjust User CPU Quantum and Preempt Processes in Linux for NGINX and PostgreSQL

Learn how to adjust user CPU quantum and preempt processes in Linux to improve the performance of NGINX web server and PostgreSQL database server. This article explains the steps to edit configuration files and optimize system settings.

Adjusting User Quotas and Preempting Processes in Linux: NGINX and PostgreSQL

Learn how to adjust user quotas and preempt processes in Linux to optimize resource usage for NGINX web servers and PostgreSQL databases servers.

No Available Connections with WSL2, Ubuntu, and KDE on Windows 10

Users of Windows 10 Pro with WSL2, Ubuntu 22.04, and KDE Plasma 5.24.7 may encounter issues with no available connections. This article provides a suggested solution.

Error: Exec format error with /usr/bin/dircolors on Debian 12

Users of Debian 12 report an Exec format error when trying to execute the /usr/bin/dircolors file. This issue causes backup processes to fail with warnings. In this article, we explore the cause of the problem and provide potential solutions.

Compiling KDE on Debian 12: Unable to Install libkf6windowsystem-dev

This article discusses a common issue encountered while compiling KDE on Debian 12, specifically the failure to install the required dependency libkf6windowsystem-dev. We'll explore potential solutions to help you successfully install KDE on your Debian 12 machine.

Understanding BC Command Line in Linux: A Comprehensive Guide

Learn the ins and outs of the BC command line tool in Linux. Understand its usage, syntax, and various functions with practical examples.

Troubleshooting Kubernetes Cluster on Azure VM: Resolve TLS Error in 'kubectl get pods'

Encountered TLS error while running 'kubectl get pods' on a Kubernetes cluster deployed on an Azure VM? Learn how to resolve this issue by ensuring the correct public IP is configured.

Using GNU parallel with --pipe: Process One Line at a Time

In this tech support article, we'll explain how to use GNU parallel with the --pipe option to process one line at a time. If you're encountering unexpected behavior when trying to read standard input lines with this setup, follow the steps below to troubleshoot and achieve the desired results.

TMUX: Ctrl+B Arrow Key Navigation Not Working

Users report that pressing Ctrl+B and releasing it, followed by arrow key navigation, does not navigate through tmux commands as expected. This issue occurs while using tmux over SSH. Here are some suggested solutions.