Articles in Linux | UserComp.com

Best Way to Achieve Real-Time Collaborative Editing in Neovim?

In this tech support article, we will discuss the best way to set up a real-time collaborative editing environment in Neovim, similar to Visual Studio Code's Live Share feature. One way to achieve this is by sharing buffers, allowing multiple users to edit simultaneously. Let's explore this method and other potential solutions to enable efficient real-time collaboration in Neovim.

How to List Video Files with Specific Extensions in GNU Bash

In this tech support article, we will discuss how to list video files with specific extensions such as .mp4 and .avi using a regular expression in GNU Bash. This can be useful for managing and organizing large collections of multimedia files in a Linux environment. Let's dive into the world of command line and learn how to use the 'find' command with a Regular Expression to achieve our goal.

Setting up WireGuard VPN for Oracle Cloud to Access Local Resources Behind a CGNAT Network

Learn how to set up WireGuard VPN to access local resources behind a CGNAT network on Oracle Cloud. This guide provides a step-by-step process for configuring the VPN and connecting to the Oracle instance.

Nginx SSL/HTTPS Not Working on Dynamic IP Raspberry Pi with Fritzbox Router

Having trouble getting Nginx SSL/HTTPS to work on your Raspberry Pi with a dynamic IP address and Fritzbox router? Learn about potential solutions to this issue to secure your website and improve user experience.

Force Certbot to Overwrite Certificate Even if Time Remains

Learn how to force Certbot to overwrite existing certificates with new ones, even if the current certificate has not yet expired. This can be useful when making significant changes to your server or domain configuration. This SEO-optimized article provides a step-by-step guide to using the `--cert-name` and `--force-renewal` options to achieve this.

Checking Multiple VNC Servers Running on Linux System

Learn how to check multiple VNC servers running on a Linux system using the 'ps' and 'grep' commands. Having trouble identifying the exact port running, read more to find out how to troubleshoot.

Restoring MongoDB Dump on New Server with Version 6.0.3 Running Smoothly, But Failing with Error (Process:27897 ExecStart=/usr/bin/mongod--config/etc/mongod.conf)

We successfully restored a MongoDB dump on a new server with version 6.0.3, but encountered an error during the process. The error occurs with the process ID 27897 and the command 'ExecStart=/usr/bin/mongod--config/etc/mongod.conf'. This article provides insights into the issue and possible solutions.

Solving Docker Container Issues with IMAPSync Extension on Synology NAS

Having trouble installing the IMAPSync extension on your Synology NAS using the Container Manager? This article provides a solution to common Docker container issues that you may encounter during the installation and configuration process.

Run Ubuntu VM Guest without Installation: A Tutorial for Tech Support

Learn how to run an Ubuntu VM guest without installation using VirtualBox and an ISO image. This tutorial is perfect for tech support professionals looking to provide a quick and easy solution for users. Try Ubuntu without the hassle of installation and with the convenience of a virtual machine.

Paste Text in VirtualBox Guest without Installing: Running Ubuntu VM (Try Ubuntu using ISO image) on Ubuntu Host

Learn how to paste text in a VirtualBox guest without installing it, using the 'Try Ubuntu' feature with an ISO image on a Ubuntu host. This guide provides step-by-step instructions for using the VirtualBox environment efficiently with a virtual machine, enabling you to type using the host's keyboard.

How to Enable Esc Key Status Bar Widget on Debian 12 for MacBook Pro 2017 with Touch Bar

Learn how to enable the Esc key status bar widget on Debian 12 for MacBook Pro 2017 with Touch Bar, even if the physical Esc key is missing. This guide will help you work around the issue of the Touch Bar Mac not working with the Linux kernel.

How to Add SRT Subtitle File to an Existing .TS File using FFmpeg

Learn how to add an SRT subtitle file to an existing .TS file using FFmpeg, a powerful multimedia framework. This guide provides step-by-step instructions for a successful implementation.

Converting MKV Video Files to MP4 by Folder using FFmpeg and Organizing Results in a Different Folder

Learn how to convert multiple MKV video files to MP4 format in a single folder and move the converted files into a different folder using FFmpeg in Linux. This guide provides a simple solution for efficient video file management.

Brightness Adjustment Steps for Dual-Booted Windows and Ubuntu on Large Laptops

Learn the steps to adjust brightness on a large laptop dual-booted with Windows and Ubuntu. This guide provides simple and easy-to-follow instructions to help you adjust your screen brightness for both operating systems.

Troubleshooting Not Accessing Server One WireGuard Interface with Another WireGuard Interface on ProtonVPN

Having trouble accessing Server One WireGuard interface with another WireGuard interface on ProtonVPN in Ubuntu 22.04? Learn about possible solutions to resolve this issue.

Unable to Execute Eclipse on Ubuntu: Fresh Install on Another Drive

Having trouble executing Eclipse on Ubuntu after a fresh install on another drive? This article provides a possible solution for this issue, with a focus on SEO optimization and encouraging the audience to read more on tech support.

Identifying Causes of 100% CPU Load on a Single Thread

Noticed your laptop's fan running loudly? While it may seem like no process is using a lot of CPU, there might be a single thread utilizing 100% of the CPU load. This article provides a brief overview of how to identify the cause of this issue in a Linux environment.

Specify GPG Key Identity for SSH Host Authentication: A Tech Support Guide

Learn how to specify a GPG key identity for SSH host authentication. This guide will explain how to export and double-check your ssh-keysubkey for secure access to vendors' servers. Make sure to protect your RSA4096 GPG key passphrase for optimal security.

Gio Mount Fail: Volume Doesn't Implement Mount - Troubleshooting Guide

Having trouble with Gio mount fail because the volume doesn't implement mount? Learn about the possible causes and solutions to this issue. Read more to find out how to troubleshoot this problem and get your system up and running.

How to Alter Timestamps and Remove Audio Tracks in M2TS Files using FFmpeg

Learn how to remove certain audio tracks from a batch of M2TS files and alter their timestamps using FFmpeg, a powerful multimedia framework. This process can help save space and customize your video files. Follow our step-by-step guide to optimize your workflow.

Understanding Linux Loop-back Internal Traffic Destined for NATed Public IPs

In this tech support article, we will discuss the concept of loop-back internal traffic originating within a server (not LAN servers) and destined for NATed public IPs, particularly in the context of cloud VMs with public IPs provided by cloud vendors. Learn how to manage and optimize this internal traffic for improved server performance.

Connect to Linux WireGuard VPN Server from Windows using Remote Desktop

Learn how to connect two Windows clients to a WireGuard VPN server hosted on a Linode instance. This SEO-optimized article provides a step-by-step guide to securely access your network using Windows Remote Desktop. Read more to enhance your tech support skills.

Fast Firewall/DPI System Finds SSH Server IP with Random Port

Traditional methods of sniffing SSH traffic on port 22 may not reveal the server IP address when hard firewalls or DPI systems are in place. However, a fast firewall/DPI system can find the SSH server IP address even when it's using a random port, which can be around 60k possibilities. This feature provides an efficient way to secure and manage SSH traffic.

ECSTasks Can't Access Resources on Public Internet: Troubleshooting Guide

Having trouble with ECS tasks not being able to access resources on the public internet? Learn about common causes and solutions in this troubleshooting guide. Ensure your ECS cluster, EC2 instances, and internet gateway are properly configured.

How to Get a Subdomain Pointing to a PM2 App on Nginx Ubuntu Server

Learn how to configure a subdomain pointing to a PM2 app on an Nginx Ubuntu server. This tutorial will guide you through creating two configuration files to serve your Meteor or PM2 application on a subdomain.

How to Increase Hard Disk Space in a Provisioned Virtual Machine (Suse Linux) from 100GB to 200GB?

Learn how to increase the hard disk space of a Suse Linux virtual machine that was initially provisioned with 100GB to 200GB. This tutorial provides step-by-step instructions to help you expand the disk space and manage your VM's resources more efficiently.

How to Open Existing SSH Session as a New Tab in MobaXterm

Learn how to open an existing SSH session as a new tab in MobaXterm instead of the homepage. This tutorial will guide you through the process of customizing the new tab button behavior for a more efficient SSH management.

Git Push Data Streamer Error: Troubleshooting for Git Desktop Beginners

If you're a beginner using Git Desktop and encounter a 'git push data streamer' error, this article can help. Learn how to troubleshoot common issues like repositories without a year or different file structures between repositories and versions.

Bash Command Doesn't Work in ZSH: Troubleshooting

Learn how to troubleshoot a bash command that doesn't work in ZSH. Get insights into the differences between bash and ZSH and how to adjust your commands accordingly.

Debugging General Slowdowns and SSH Login Issues on Ubuntu Servers

Having trouble with a Ubuntu server that's been running for a couple of weeks? General slowdowns and SSH login issues can be frustrating. Learn how to diagnose and resolve these common problems.

TTL Set to 100 Seconds - Data Updating Every 70 Seconds?

Having trouble understanding the behavior of TTL set to 100 seconds while experiencing new data updates every 70 seconds? Learn more about it here.

SDDM Failure to Load: Troubleshooting and Solutions

Experiencing trouble with SDDM not loading during startups? Learn about potential issues and solutions to get your system up and running smoothly.

Qt Creator on Fedora (KDE) Allows Running Fusion Theme Instead of Default Breeze

Having trouble using the Breeze theme in Qt Creator on Fedora (KDE)? You might want to try running the Fusion theme instead. Here's how to launch the program following the appropriate environment.

How to Declare Readonly Associative Array and Error Redirection in Debian Gnu/Linux (Version 12.4)

In this article, learn how to declare a readonly associative array and perform error redirection in Debian Gnu/Linux (version 12.4) using a simple script. A readonly variable is a useful feature in Bash scripting that ensures the variable cannot be modified once it has been assigned a value. Error redirection is another essential skill to master in shell scripting, as it allows you to control how your script handles errors.

SSH Agent Forwarding with Local Credentials for Convenient Service Chaining

Learn how to use SSH agent forwarding with local credentials for seamless service chaining, enabling secure connections to remote log servers and platforms like GitHub. Simplify your workflow while maintaining high security standards.

Define Subdomain for Apache Server Name using FritzBox

Learn how to define a subdomain for Apache Server Name using FritzBox and enable port forwarding for external access. Follow this simple guide to set up your Apache server with a FritzBox router.

Print Directory Structure of My Archive with a Handy Command

Learn how to print the directory structure of your archive using a simple command in Linux. This guide will help you navigate through your archives with ease.

Simple Example Using Z3 Bindings in C for Equation Solutions

This article provides a beginner-friendly example of using Z3's C bindings to solve simple equations. Learn how to set up and use Z3 to solve mathematical systems efficiently.

Troubleshooting FFmpeg Streaming UDP Port Closed Issue for RTSP to HLS Streaming

In this article, we will tackle the problem of the UDP port being closed when using FFmpeg for transcoding RTSP streams to HLS streams accessible on a web server. The focus will be on identifying and resolving the issue, with a special emphasis on making the abstract SEO optimized.

How to Include libavcodec.so in Unreal Engine 4.23.1 for Android System Programs

Learn how to add the FFmpeg library libavcodec.so to your Unreal Engine 4.23.1 project for Android system programs and dynamically convert sampling rates. Follow these steps to enhance your project's functionality.

Understanding Bash Parser Lexer Mechanism

This article provides an overview of the Bash parser lexer mechanism, which is crucial in implementing a Bash-like shell. The first case study discussed is the $test=o$ech$test command, with a focus on the lexer's role in processing special characters and variables.

DPKG-S Command Error: No Path Found Matching Pattern

This article provides a solution to the DPKG-S command error that yields 'dpkg-query: no path found matching pattern'. Learn how to troubleshoot this issue and its possible causes.

Fixing MongoDB Aggregation: Button Inside Table Not Working

Learn how to fix the issue of a button inside a MongoDB aggregation table not working. Follow the steps to open uploaded customer files via the admin account. A code button has been added in wp-functions.php and presented inside the table using $.,...

Recover Deleted Folder in WSL Ubuntu Environment

Learn how to recover a deleted folder in your WSL Ubuntu environment using data recovery tools. Follow these steps to get back your important files.

Build Orange Pi 5 (aarch64) Image on x86 Machine with Dockerized Gentoo RootFS Builders (No -privileged)

In this article, we investigate building an Orange Pi 5 (aarch64) image using a Dockerized Gentoo RootFS builder on an x86 machine, all while avoiding the use of -privileged. Learn how to utilize cross-platform Dockerized rootfs builders for low-resource, reproducible, and scalable projects.

How to Port Nemo Script Dolphin Actions to Show Slide Show of Selected Files/Folders

This article provides a guide on how to port Nemo script Dolphin actions to show a slide show of selected files or folders. Learn how to make the call script file and use Dolphin to display your images or documents in a smooth slideshow.

Linux-Based Docker Container Crash on DigitalOcean Apps Platform: Potential Memory Issue?

A Linux-based Docker container running on the DigitalOcean Apps platform has recently crashed, with no indicators, warnings, or errors in the app logs. This article explores the potential memory issue as a possible cause and provides solutions to resolve it.

Troubleshooting Sawtooth Gradual Rise in Memory Usage of Linux-based Docker Container on DigitalOcean Apps Platform

In this article, we'll investigate a stable month-long issue where a Linux-based Docker container running on DigitalOcean Apps Platform recently crashed, despite the absence of any code warnings or errors in the application logs. Specifically, we'll focus on the sawtooth gradual rise in memory usage that preceded the crash.

Building a Least Square Preconditioner Based on RIF for C- Orthogonalization Problem

In this paper, we explore the construction of a preconditioner based on the Recursive Inner Feature (RIF) method for the C-orthogonalization problem. This approach is aimed at accelerating the convergence of iterative methods for solving linear systems that arise in numerical analysis. The proposed preconditioner is shown to outperform existing methods, making it an attractive option for solving large-scale C-orthogonalization problems.

Effortlessly Sync Configurations and Shortcuts between Linux Mint and Debian

If you've recently migrated from Windows to Linux Mint (LMDE or Precise) and have grown fond of customizations, learn how to sync your configurations and shortcuts between Linux Mint and Debian seamlessly.