Articles in Linux | UserComp.com

Running a Standalone App on Raspberry Pi with Local WiFi AP (Debian/Raspbian): Setting Up a Web Server

Learn how to run a standalone app on Raspberry Pi with Debian or Raspbian OS and set up a local WiFi AP and web server to display app results.

Opening Second Teamswindow in Linux using WebApp: A Windows Alternative

Learn how to open a second Teamswindow in Linux using a WebApp as an alternative to the Windows application.

Port Alerts on Honeypot: Inbound SMB Connection from 192.168.1.1

Over the past two months, we have been using a Honeypot to secure our household network. Recently, we have been receiving Port Alerts for an inbound SMB connection from 192.168.1.1. In this article, we will discuss the potential risks and suggested steps to mitigate this issue.

Mount Doesn't Appear in /etc/fstab for df-hserver (Red Hat 9.4)

This article provides a solution for the issue where certain mounts do not appear in the /etc/fstab file for a df-hserver (Red Hat 9.4) system.

Possible Changes to SSH Behavior: Checking Shell Access Authorization when Creating Home Directories

This article discusses the possible changes to SSH behavior regarding shell access authorization when creating home directories. Learn how to check and adjust these settings for improved security. Bonus points for showing a MOTD shell authorization message.

Troubleshooting TCSH Command History: Multi-line Aliases Not Recorded

In this tech support article, we will discuss a somewhat bizarre issue encountered when using TCSH command history, where multi-line aliases are not recorded. This behavior can be easily reproduced by opening a new TCSH shell (through SSH or locally), setting history and savehist, and then running commands to check the history. Let's look into potential solutions to resolve this issue.

Getting VMware Workstation and Docker Desktop to Work: Recommended Settings for Installed Docker Desktop on a VM

Learn the recommended settings for getting VMware Workstation and Docker Desktop to work together when Docker Desktop is installed on a VM. Recommended settings include using WSL2.

FFmpeg Ignores Input SVG Files Resolution, Produces 100x100 Video - Tech Support

Having trouble with FFmpeg ignoring the resolution of SVG files and producing 100x100 videos? Learn about a possible workaround using the command that has worked flawlessly for years to produce .ogg files from a series of .svg files on Linux. Read more to find out how.

Script Reloads Sudo Users Without Reboot: Solving Failed restart of sudo.service

Learn how to use a script to remove and add users to the sudo group at a future time without rebooting, addressing failed restart of sudo.service. This tech support article provides a solution for a common use case and offers a concise and SEO-optimized description.

Do Screenshot Permissions Work Differently in Wayland?

Explore the security model of Wayland and how it affects screenshot tools like 'grim' and others. Learn about the differences in screenshot permissions in Wayland compared to traditional systems.

SSH Credentials Added Twice: Unable to Remote Connect via SSH on Ubuntu

This article explains the issue of SSH credentials being added twice on an Ubuntu machine, preventing successful remote connections. It covers potential causes and solutions for this problem.

Virtualbox: Copy-n-Paste Host-to-Guest CLI Issue

Users report that they cannot copy text from a Windows 10 host to a Ubuntu guest in Virtualbox using the bidirectional drag-and-drop clipboard. This article provides potential solutions to the issue.

Understanding Security Layers: LSMs vs. Flatpak in Linux Application Sandboxing

Learn about the differences between LSMs and Flatpak in Linux application sandboxing. Get a better understanding of security layers and how they interact with applications and containers.

Installing htop and using nohup for long-running SSH sessions on Intel-based QNAP NAS (QTS 5.1+)

Learn how to install htop, a handy interactive process viewer, and use nohup for long-running SSH sessions on your Intel-based QNAP NAS running QTS 5.1 or later. Improve your productivity while managing background processes efficiently.

Restarting Systemd Services Dependencies: A Tech Support Guide

Learn how to restart Systemd services and their dependencies when one service takes too many tries to start. This guide focuses on services configured with Restart=on-failure and Requires= in the .service file.

Can't Ping Docker NS3 Emulation Process: Connecting Two Dockers with Different Bridge Networks

Having trouble connecting two Dockers with different bridge networks while using the NS3 emulation process? Learn more about this issue and possible solutions in this tech support article. Inviting readers to explore more about connecting Dockers and NS3 emulation. SEO optimized with relevant keywords.

Can't Programmatically Access Content from GVFS-Provided URI?

Having trouble programmatically accessing content from a GVFS-provided URI? This article provides a summary and possible solutions to help you resolve the issue. Read more to learn how to handle this tech support challenge.

Two CentOS Devices with IP Addresses in the Same Subnet Cannot Ping Each Other's MAC Address

Two CentOS devices with IP addresses in the same subnet cannot ping each other's MAC addresses. This issue might be caused by various factors such as firewall rules, incorrect network configurations, or hardware problems. In this article, we will discuss some possible solutions to help you troubleshoot and resolve this issue.

Drawing Sessions Remotely with fbterm: A Comprehensive Guide

Learn how to use fbterm to draw sessions remotely on Linux systems. This guide covers starting fbterm with stdin tied to /dev/ttyN and using strstr for interactive framebuffer sessions.

Downloading a Single HTML File: wget and usepagetitle instead of index.html

Learn how to download a single HTML file using wget and the usepagetitle option instead of the default index.html.

NGINX Server Failing to Handle Certain Number of New Connections on Ubuntu VM

This article discusses an issue with an NGINX server on an Ubuntu VM failing to handle a certain number of new connections. It provides suggestions for troubleshooting and potential solutions.

Understanding iwconfig Output on Raspberry Pi Zero with Debian: Honing in on the ESSID

This article provides an overview of the iwconfig command output when used on a Raspberry Pi Zero with Debian. It focuses on deciphering the ESSID information and improving signal quality. The article is SEO optimized and encourages the reader to learn more about tech support for Raspberry Pi and Debian.

Installing PHP-FPM on Nginx Raspberry Pi: A Failed Attempt

This article discusses the failed attempt to install PHP-FPM on Nginx Raspberry Pi, providing a solution to the issue.

Unable to Create Hotspot on Ubuntu 24.04 with Kernel Generation 6+: A Troubleshooting Guide

Having trouble creating a hotspot on Ubuntu 24.04 with Kernel Generation 6+ using hostapd? This article provides a step-by-step guide to help you identify and resolve common issues that may be preventing your device from connecting to the hotspot. Learn how to optimize your hotspot configuration for improved connectivity and avoid common pitfalls. Read more to find a solution to your tech support needs.

SSH Permission Denied on Port 22: Home Lab Server Issue

A home lab server running Ubuntu 24.04 LTS recently denied SSH access from a laptop running Windows 10. This article outlines the steps to set up an SSH server on the laptop and troubleshoot the permission denied error on port 22.

Constantly Written File in Btrfs Scrubbed Filesystem: A Tech Support Guide

In this tech support guide, we'll discuss the issue of a constantly written file in a Btrfs scrubbed filesystem, specifically when using a virtual hard drive in a VM. Learn more and find a solution here.

Convert AWS pre-signed URL Authorization headers

This article explains how to convert AWS pre-signed URL Authorization headers to a format that can be used in various applications. It covers the basics of pre-signed URLs and provides a step-by-step guide on how to parse and convert the headers.

Slow File Operations with Sysbench on Fedora 41

The user has reported slow file operations while benchmarking disk performance using Sysbench on Fedora 41. This article aims to provide potential solutions to the issue.

Fail2ban: Updating apache-badbots.conf for Debian 12 to Block Traffic from Crawlers

If your Debian 12 server is experiencing high traffic from crawlers like Barkrowler, Bytespider, or others, you can update your apache-badbots.conf file with Fail2ban to block these unwanted accesses. Here's how.

No Java Runtime Found Error in TripleA on Linux Mint 22

This article explains how to resolve the 'No Java Runtime Found' error encountered when installing TripleA using the apt package manager on Linux Mint 22.

Bypassing Fast API Directly: Uploading Files to European GlusterFS Volumes in WordPress

Learn how to bypass Fast API and directly upload files to European GlusterFS volumes on a WordPress server hosting both US and European instances.

Running Docker on AlmaLinux: Troubleshooting Firewall Issues with CFFirewall (firewall script)

Learn how to resolve Docker compatibility issues with the CFFirewall firewall script on AlmaLinux.

Fixing Incomplete Grep: A Common Typing Mistake

Do you constantly make the mistake of typing incomplete grep commands? Learn how to fix this common typing mistake and improve your command line productivity.

NginxProxyManager Behavior with Unknown Hosts

This article discusses the behavior of NginxProxyManager (version 2.12.1) when encountering unknown hosts while forwarding ports 80 and 443 in a Docker container running OpenSense.

Speed Up Writing Last HLS Segment File with ffmpeg and SRT Server

Learn how to optimize your workflow for sending HLS segment data to a remote server using ffmpeg and the SRT protocol for faster writing of the last HLS segment file. Improve your video streaming performance with this helpful guide.

Troubleshooting Certificate Signing Request Failure in Distributed CA: Root CA and 4 Devices in Azure Subnet

Having trouble with certificate signing requests (CSR) failing in a distributed certificate authority (CA) setup with 4 devices across 3 servers and 1 workstation in Azure subnets? Learn how to troubleshoot and resolve this issue. Read more for a comprehensive tech support guide.

Fix Extremely Slow Boot Times in Pop!_OS 22.04 with Dual Boot Fedora Atomic

Having trouble with slow boot times in Pop!_OS 22.04 on a laptop with Fedora Atomic dual boot? Learn how to fix the issue in this SEO-optimized tech support article. Improve your system's performance and ensure a smoother user experience.

Troubleshooting Wrong iPTables Configuration for ShadowSocks Proxy Access Point

Having trouble routing traffic through ShadowSocks proxy access point using iPTables configuration? This article provides a possible solution to help you troubleshoot and resolve the issue. Optimized for SEO using relevant keywords.

Guide to Aid Design Code Speech Alone: Installing Ubuntu on Raspberry Pi 3B+

Learn how to install Ubuntu on your Raspberry Pi 3B+ with our easy-to-follow guide. This tutorial will help you get started with designing code and speech alone on your new device. #Ubuntu #RaspberryPi #TechSupport

Router Packets from One WireGuard Client to Another Using iptables

Learn how to route packets from one WireGuard client to another through a VPS server using iptables, enabling secure and efficient communication between devices.

Linux File Demand Every Read Operation: Understanding the Impact

This article explains the concept of every read operation in Linux files and its impact on system performance. It discusses the causes and potential solutions to reduce the number of read operations.

Creating Temporary Files without Write-Back and Close: A Solution

Learn how to create temporary files using the 'write-read' pattern, providing a solution for memory limit issues while benefiting from the speed of local disk storage. This article is SEO optimized and provides a brief overview of the topic.

Understanding CPU, Memory, and GPU Usage on Multiple Ubuntu Computers

Learn how to monitor and understand CPU, memory, and GPU usage on multiple Ubuntu computers. This article offers an open-source, simple solution, including scripts, to help you identify potential hardware upgrade needs.

Getting Started with Clonezilla: Pre-run Bash Script and OCS Options

Struggling to find answers to your Clonezilla-related questions, specifically regarding the use of a pre-run Bash script and OCS options? In this article, we'll guide you through the process.

Configuring UFW Forwarding Range Ports for Containers

Learn how to configure UFW (Uncomplicated Firewall) to forward a range of ports for containers using iptables. This article includes a step-by-step guide and an example.

Avoiding Infinite Routing Loops with TUN2Socks Local Proxy

If you're experiencing an infinite routing loop while using TUN2Socks as a local proxy, this article explains the cause and provides solutions to avoid it.

Virt-Manager Created QEMU VMs Break Host Internet via Routes VM

Learn how to fix the issue of host internet connection dropping when starting virtual machines (VMs) created using Virt-Manager and QEMU with NAT networking and Ethernet device. Find solutions to manage and isolate the network connections of VMs and the host system.

DNS Not Working with Transparent Proxy Active in ShadowSocks (Socks5) Configuration

Having trouble with DNS resolution when using ShadowSocks (Socks5) with a transparent proxy configured? Learn how to access web pages directly by typing IP addresses.

How to Prevent Interrupting a Bash Script Every Two Seconds

Learn how to prevent a bash script from being interrupted every two seconds. This article provides a solution to keep your script running smoothly.

Why are my Docker Container Logs Missing?

If you're unable to find Docker container logs in the expected directory or through the Docker Desktop GUI, this guide will help you identify possible reasons and offer solutions. Learn how to locate missing Docker container logs and get back on track with your tech support tasks.