Articles in Linux | UserComp.com

Installing cURL properly on OpenWRT Chaos Calmer (15.05.1) for ar71xx TP-LINK MR3020

Learn how to properly install cURL on OpenWRT Chaos Calmer (15.05.1) for ar71xx TP-LINK MR3020 router using opkg package manager. Enhance your router's functionality by adding cURL support and explore various possibilities it offers.

Reading Tape on CentOS 7: A Comprehensive Guide

Learn how to read tape on CentOS 7 with this comprehensive guide. Whether you need to access archived data or perform backups, this article provides step-by-step instructions on using the tar command, handling blocking issues, and ensuring successful tape reading on CentOS 7.

How to Password Protect Grub Boot Menu in Fedora 38

Learn how to password protect the Grub boot menu in Fedora 38. This article provides step-by-step instructions and tips to secure your system and prevent unauthorized access to the boot menu.

How to Convert All Non-White Parts of an Image to Black

Learn how to convert all non-white parts of an image to black on Linux using simple commands. This article provides step-by-step instructions and tips for achieving the desired result. Explore the process of converting images to black and optimize your workflow with ease.

Fixing Cannot Read Error in Console or via Redirect in Linux Terminal

Learn how to fix the 'Cannot read error in console nor via redirect' issue in Linux terminal. This article provides step-by-step instructions to resolve the error and ensure smooth operation of your Ubuntu 20.04 system.

How to Port Bind an Interactive Transient PBS Session to the Head Node

Learn how to port bind an interactive transient PBS session to the head node and then port bind the head node to your local machine. This article provides step-by-step instructions and tips for efficient SSH port forwarding in an HPC environment.

Error with libc.so.6: version `GLIBC_2.32' not found when using it with wkhtmltopdf

Encountering an error with libc.so.6: version `GLIBC_2.32' not found when using it with wkhtmltopdf? This article provides tech support and troubleshooting steps to resolve the issue. Explore solutions and get your wkhtmltopdf working seamlessly on Linux systems.

How to Load a Docker Multiarchitecture Image on a Machine with One of the Architectures

Learn how to load a Docker multiarchitecture image on a machine that has one of the supported architectures. This article provides step-by-step instructions and tips for successfully deploying multiarchitecture images in your Docker environment.

Preserve Order of Closing Services While Shutting Down Linux

Learn how to preserve the order of closing services while shutting down Linux. This article provides step-by-step instructions and tips on using systemd to ensure a smooth shutdown process. Discover how to maintain service dependencies and avoid potential issues during system shutdown.

Verifying Data Integrity and Drive Health with Badblocks Read-Only Test (Badblocks/Linux)

Learn how to use the Badblocks read-only test in Linux to ensure data integrity and assess drive health. Discover the importance of validating data during transfers and verifying drive health for optimal performance and reliability.

Troubleshooting 'No password hashes loaded' Error for JTR with $apr1$ Hash in Single Mode

Learn how to troubleshoot the 'No password hashes loaded' error when using John the Ripper (JTR) in single mode with $apr1$ hash. This article provides step-by-step instructions and solutions to resolve this issue on Linux systems, specifically Kali Linux.

Baffled by rsync filters in shell variables

In this article, we dive into the perplexing world of rsync filters in shell variables. Learn how to overcome the challenges of filtering files during synchronization using bash and rsync. Gain a deeper understanding of shell variables and their role in customizing rsync filters for efficient file transfers.

Fixing Putty Password Access Denied Error

Encountering an access denied error while trying to use Putty with root or any user? This article provides solutions to fix the Putty password access denied error. Learn how to resolve this issue and regain access to your system in no time.

How to Rename a File in Linux: Step-by-Step Guide

Learn how to easily rename files in Linux using the command line. This step-by-step guide will show you how to use the sed and awk commands to efficiently rename files in a Linux environment. Master the art of file renaming and improve your productivity with this comprehensive tutorial.

CentOS Kickstart url command: Can I make it choose a mirror for me?

Learn how to use the CentOS Kickstart url command and make it automatically choose a mirror for you. This article provides step-by-step instructions and tips for optimizing your CentOS installation process.

Search and Replace in highlighted text returns Trailing Characters error in neovim

Learn how to resolve the Trailing Characters error when performing a Search and Replace operation in neovim. This article provides step-by-step instructions and troubleshooting tips for resolving this issue in the popular text editor neovim.

Linux Found Preloaded Shared Library: Potential Threat to Security?

Discover the potential security threat posed by preloaded shared libraries in Linux systems. Learn how this vulnerability can affect your Raspbian-based devices and what steps you can take to mitigate the risk.

How to Set qpdfview Display Options in a Bash Script

Learn how to set display options for qpdfview in a bash script. This article provides step-by-step instructions on configuring qpdfview's display settings programmatically, allowing you to customize your PDF viewing experience. Dive into the world of bash scripting and enhance your presentations with qpdfview.

Virtual Cortex-A72 board emulation with RTOS on QEMU over windows

Learn how to emulate a virtual Cortex-A72 board with a real-time operating system (RTOS) using QEMU on Windows. This article provides step-by-step instructions and insights into the process of setting up the emulation environment and running an RTOS on QEMU. Explore the possibilities of virtualization and optimize your development workflow for ARM-based systems.

Troubleshooting SFTP User Connection Error in Debian 11

Learn how to troubleshoot SFTP user connection errors in Debian 11. This article provides step-by-step instructions and solutions to resolve common issues related to SFTP user connections in the Debian 11 operating system.

How to Fix UFW Blocking KVM Guest from Getting IP Address and Accessing Network

Learn how to resolve the issue of UFW blocking a KVM guest from obtaining an IP address and accessing the network. This article provides step-by-step instructions to fix the problem and ensure smooth connectivity for your KVM guest on Ubuntu using VirtualBox and bridge networking.

Setting up NAT Hairpinning between Two Subnets with OpenWrt

Learn how to configure NAT hairpinning between two subnets created with OpenWrt. This article provides step-by-step instructions on setting up NAT hairpinning, a useful networking feature that allows devices within the same network to access each other using their public IP addresses. Discover how to improve your networking setup and enhance connectivity between devices on your OpenWrt network.

What does Docker ID 999 mean? - Explained

Discover the meaning behind Docker ID 999 and its significance in the Linux environment. This article explains the concept of Docker ID 999 and its relevance to user groups in Linux.

Troubleshooting Linux with Desktop Environment using XRDP on Archlinux on WSL

Having trouble with Linux and XRDP on Archlinux on Windows Subsystem for Linux (WSL)? This article provides troubleshooting tips and solutions to get your desktop environment working smoothly with XRDP on Archlinux on WSL.

Troubleshooting xkb Keyboard Layout Issues on Certain Software

Learn how to resolve xkb keyboard layout problems on specific software in Linux. This article provides troubleshooting steps for users encountering issues with their xkb keyboard layout on certain software applications, focusing on the Fedora 38 distribution and GNOME desktop environment.

Secure Transfer with ProFTPD - Speed Difference Between SFTP & SCP

Learn about the speed difference between SFTP (OpenSSH secure file transfer) and SCP (OpenSSH secure file copy) when using ProFTPD. Discover how to securely transfer files with ProFTPD and compare the performance of these two protocols.

Troubleshooting Unbound DNS Resolver Not Resolving Certain Domain Regions

Learn how to troubleshoot and fix the issue of Unbound DNS Resolver not resolving specific domain regions. This article provides step-by-step instructions and solutions for resolving the problem, focusing on the integration with pihole and related configurations.

Dramatic Difference in Network Performance between Multiple KVM Virtual Machines Accessing a Bridged Physical Interface

Discover the significant gap in network performance experienced by multiple KVM virtual machines when accessing a bridged physical interface. This article explores the implications of this issue and provides insights into potential solutions for optimizing network performance in a Linux environment.

What is the qt6-tools equivalent of qt5-tool uic option?

Learn about the equivalent of the qt5-tool uic option in qt6-tools for Linux. Find out how to use this option and its functionalities in the latest version of Qt.

Understanding the ID of Docker (999)

Learn about the ID of Docker (999) and its significance in the Linux environment. This article provides insights into the Docker ID structure and its usage in container management. Gain a deeper understanding of how Docker IDs are assigned and managed, and how they contribute to the overall Docker ecosystem.

Reverting x86_64-linux-gnu-gcc to an older version

Learn how to revert the x86_64-linux-gnu-gcc compiler to an older version on Ubuntu 20.04. This article provides step-by-step instructions and troubleshooting tips for downgrading gcc in order to address compatibility issues or utilize specific features of an older gcc version.

How to Delete All Words Starting with a Specific String in a File

Learn how to delete all words starting with a specific string in a file using the command-line tool sed in Linux. This article provides step-by-step instructions and examples to help you efficiently remove unwanted words from your files.

What does $FileName$ passed as argument do?

In this article, we explore the functionality and purpose of the $FileName$ parameter when passed as an argument in Linux. Discover how this parameter influences file operations and learn how to effectively utilize it in your Linux environment.

How to Add the Display Driver Called "-device vmware-svga,id=video0,vgamem_mb=16,bus=pcie.0,addr=0x1" Directly Inside virt-manager

Learn how to add the display driver called "-device vmware-svga,id=video0,vgamem_mb=16,bus=pcie.0,addr=0x1" directly inside virt-manager in Linux. This article provides step-by-step instructions and guidance for configuring the driver to enhance your virtual machine's graphics performance.

How to Set the Sound Device's "Profile" at the Shell Prompt

Learn how to set the sound device's "profile" at the shell prompt in Linux. This article provides step-by-step instructions for configuring the sound device's profile using commands in the command line interface.

Setting the Default Sound Device at the Shell Prompt in Pipewire

Learn how to set the default sound device at the shell prompt in Pipewire. This article provides step-by-step instructions and tips for configuring your sound card in a Linux environment using Pipewire.

Double-clicking .sh file on KDE fails to run the script

Encountering issues while attempting to run a script by double-clicking the .sh file on KDE? This article provides troubleshooting steps and solutions to resolve the problem, ensuring seamless execution of shell scripts on your KDE environment.

BIOS won't recognize bootloader: Troubleshooting Guide

Having trouble with your BIOS not recognizing the bootloader? This troubleshooting guide provides step-by-step solutions for resolving the issue. Learn how to fix the problem and successfully boot your Linux system, specifically Arch Linux, by following the instructions in this article.

Maintain a fixed-size-queue of nohup jobs

Learn how to maintain a fixed-size queue of nohup jobs in bash shell scripting. This article provides step-by-step instructions and code examples to help you effectively manage and monitor long-running processes in Linux using the nohup command. Improve your productivity and ensure job stability by implementing this useful technique.

Outbound message too long when uploading files to apache sshd sftp server

Encountering an issue with the Apache SSHD SFTP server where outbound message becomes too long when uploading files? This article provides troubleshooting steps and solutions for resolving this problem. Explore how to overcome this error and ensure a smooth file upload process with Apache SSHD SFTP server.

Capture network traffic from physical devices in a Linux VM

Learn how to capture network traffic from physical devices in a Linux virtual machine (VM). This article provides step-by-step instructions for using the tcpdump tool in a Linux VM running on hyper-v. By capturing network traffic, you can analyze and troubleshoot connectivity issues, monitor network activity, and ensure the security of your Linux VM.

Error 'Failed to query nvenc max version': How to Solve This Bug?

Learn how to solve the 'Failed to query nvenc max version' bug in Linux. This article provides step-by-step instructions to troubleshoot and fix the error related to ffmpeg and Nvidia drivers.

Installing Windows 10 alongside Arch Linux

Learn how to install Windows 10 alongside Arch Linux in a dual-boot setup. This guide provides step-by-step instructions for setting up both operating systems on your computer, allowing you to enjoy the benefits of both Windows and Arch Linux.

How to allow Linux PAM Authentication for non-Local users

Learn how to enable Linux PAM Authentication for non-Local users. This article provides step-by-step instructions for configuring PAM to allow authentication for users accessing Linux systems remotely.

Notification Box in KDE Plasma Not Displaying All Emoji as Coloured

Learn how to fix the issue with the Notification Box in KDE Plasma where not all emoji are displayed in color. This article provides step-by-step instructions for resolving the problem and ensuring that all emoji appear correctly in the notification box. Find solutions and troubleshooting tips for arch-linux, kde, emoji related problems in this comprehensive tech support guide.

How to Connect a Dockerised NodeJS Server Application to External Clients and Databases

Learn how to connect a Dockerised NodeJS server application to external clients and databases. This article provides step-by-step instructions and tips for seamless integration. Explore the world of Linux, networking, virtual machines, Docker, and Red Hat Enterprise Linux as you enhance your server connectivity skills.

Unable to Recover BTRFS Partition: What to Do?

If you're struggling to recover a BTRFS partition, this article provides guidance on what steps to take. Learn how to overcome data loss and rescue your BTRFS partition using effective methods and tools.

Flashing DBAN from Linux: A Step-by-Step Guide

Learn how to flash DBAN from Linux in this comprehensive step-by-step guide. Resolve boot errors and securely erase your USB flash drive using DBAN on a Linux system.

Unable to Install libcrypto.so.1.0.0 on Ubuntu 20.04.6

Having trouble installing libcrypto.so.1.0.0 on Ubuntu 20.04.6? Learn how to resolve this issue and successfully install the required library on your Ubuntu system. This article provides step-by-step instructions and troubleshooting tips to help you overcome the installation problem.

Fixing 'cron resource temporarily unavailable' Error in Ubuntu

Learn how to resolve the 'cron resource temporarily unavailable' error in Ubuntu. This article provides step-by-step instructions to troubleshoot and fix the issue, ensuring smooth operation of cron jobs in your Ubuntu system.