Articles in Linux | UserComp.com

rsync: Not Iterating Sub-Directories - Modify Timestamp?

In this tech support article, we'll discuss a common issue with rsync when it doesn't iterate sub-directories and suggest a solution to modify timestamps.

Understanding LSblk Output: Can Different Types Impact Alignment?

In this tech support article, we will discuss the impact of different LSblk output types on alignment. LSblk is a versatile command-line utility for displaying block device information. Understanding the various types and their alignment can help in troubleshooting and managing your system effectively. Let's explore the different types and their alignment in detail.

Running Gnome Wayland Inside Schroot: A Troubleshooting Guide

Learn how to set up and troubleshoot running Gnome Wayland inside a Schroot environment. Follow this guide for successful experimentation.

Vim: 'not usable computer' error trying to recover swapfile

This article provides a solution to the 'not usable computer' error that occurs when attempting to recover a Vim swapfile.

Isolating Outward-Facing Server VM from Internal Virtual Machine Cluster

Learn how to isolate an outward-facing server VM from an internal virtual machine cluster using a layer 2/3 network switch for improved security.

Awk Becomes Cumbersome: Consider Next Tool for Text Transformation?

Awk is a powerful text-processing tool with complex filtering logic that spans multiple lines and requires maintaining state. However, in some cases, it may become cumbersome. Consider using alternative tools for text transformation tasks.

Understanding File Formats: A Look into Linux proc FS Files like /proc/mdstat

Explore the role of Linux proc FS files, focusing on /proc/mdstat and its system information display.

HTPasswd Refresh Page: Entering Wrong Password Locks Entering Correct One

Learn how to resolve an issue where entering the correct password locks you out on an HTPasswd protected page. This common problem occurs when testing HTPasswd authentication during a PHP IPAM server setup.

PowerShell Interfacing with MobaXterm: SSH Connection to IP Gets Stuck

This article discusses a common issue when using PowerShell to interface with MobaXterm for SSH connections to IP addresses. The connection gets stuck and this article provides solutions to resolve the issue.

Linux: Fedora Boot Option Doesn't Appear in GRUB Boot Menu After Installation

This article explains how to resolve the issue of a missing Fedora boot option in the GRUB boot menu after installation.

Accessing Another Server: VServer on routetrafficabc.com

Learn how to access a VServer on routetrafficabc.com using simple Debian VMs and normal internet connections. Understand the process behind VServers and tunneling.

Understanding KEX Algorithms in sshd_config: Does 'pseudo' Override or Take Effect?

In this article, we will discuss the role of KEX algorithms in sshd_config and clarify the confusion around the 'pseudo' setting.

Resolving 'CantConnectExternalNodes' in Main Percona ReplicaSet Cluster with OpenShift

This article explains how to resolve the 'CantConnectExternalNodes' issue in a Main Percona ReplicaSet Cluster running on OpenShift. We'll discuss adding unmanaged cluster nodes and exposing node ports.

Mounting Bootable Debian SD Card on macOS and Windows

Experiencing issues mounting a bootable Debian SD Card on macOS and Windows systems. The drive functions perfectly on a Linux machine, allowing read/write access. However, neither macOS nor Windows can recognize the bootable flag. Learn how to solve this issue.

GParted Doesn't Allow Adding Free Space to Partition End Table

This article explains how to resolve the issue when GParted doesn't allow adding free space to the partition end table in a dual-boot system with Ubuntu 22.04 and Windows 10.

FFmpeg High CPU Usage on Ubuntu Server: A Solution

Users report that FFmpeg, compiled to handle MP4 DRM streams, experiences increased CPU usage after running for 1-2 hours on an Ubuntu Server. This article offers a potential solution.

Upgrading SSH/SSHD: Resolving Issues with Ubuntu 20.04 (1:8.2p1-4ubuntu0.11)

Learn how to upgrade SSH and resolve issues encountered during the upgrade process on Ubuntu 20.04. Discover the importance of updating SSH and the steps to do it.

Using Libx265 with FFmpeg: A Slow Map Metadata Preset

Learn how to use the Libx265 encoding library with FFmpeg to create high-quality H.265 video files. This article covers a slow map metadata preset and essential command-line arguments.

Best Practices for Developing Existing GitHub Actions Workflows

Learn the best practices for developing and modifying existing GitHub Actions workflows in your repository. This article provides tips on how to effectively use workflows triggered by GitHub push events.

Automating ZuluCrypt Hard Drive Encryption: Create Encrypted Container on Linux

Learn how to automate the creation of encrypted containers using ZuluCrypt on a Linux system. This article covers the process of creating new backup disks with an automated script.

Loginctl Hooks Not Working: Expected Sessions in Suspend Mode

When using OpenRC init system and attempting to suspend a system with locking sessions using loginctl hooks, the locking process may not work as expected. In this article, we will discuss the purpose of loginctl hooks and provide solutions to resolve this issue.

Lossless Compression Settings for Imagemagick: Convert Grayscale JPEG2000 PDFs with JPEG2000/WebP/PDF/TIFF Output and Lossless Mode

Learn how to use Imagemagick to convert grayscale JPEG2000 PDFs with lossless compression and various output formats like JPEG2000, WebP, PDF, and TIFF.

Understanding Postfix Milter Use in Tech Support

Learn about Postfix Milter use in tech support, including its format and implementation.

Configuring Proxmox and OpenVPN with /dev/net/tun devices

This article explains how to pass a /dev/net/tun device to a Proxmox LXC container to run OpenVPN. It covers adding the necessary tun device to the container's configuration file.

Brave Google Chrome Crashing on Fedora: 'Oh snap: ERROR' Tab Browser

Users on Fedora report that Brave Google Chrome is crashing with the error message 'Oh snap: ERROR' in the tab browser. This article provides suggested solutions to help resolve the issue.

Enabling GPIO sysfs interface for Yocto Mickeyboard in Linux Kernel

Learn how to enable the GPIO sysfs interface in a Yocto Mickeyboard Linux image to run an application that requires GPIO access.

VirtualBox: Kali Linux guest VM dual monitor issues on Ubuntu 24.04.4 LTS

This article provides possible solutions to the issue of dual monitor setup not working properly in a Kali Linux guest VM running on Ubuntu 24.04.4 LTS using VirtualBox.

Capture One Frame from FFmpeg Video Stream with Device B

Learn how to capture one frame from a video stream using FFmpeg and Device B. This tutorial covers the command line process with FFmpeg, DirectShow, and V4L2. Use 'udp://[DEVICE_ADDRESS]:[PORT]' as your stream URL.

Troubleshooting SSH with Private Key: Forced Password Entry during Ceph Cluster Setup

During the process of creating a Ceph cluster using ceph-ansible, an unexpected password prompt appeared despite having a valid private key. This article aims to help understand the reason behind this issue.

Changing Clock Settings Using Terminal: A Comprehensive Guide

Learn how to change clock settings using terminal in various operating systems like Linux, Windows, and MacOS.

Unable to Connect Linux EC2 Instance via Putty (OpenSSH) on Windows Machine

This article provides a solution to the issue of being unable to connect a Linux EC2 instance using Putty (OpenSSH) on a Windows machine.

Monitoring PMCs with perf: 7 Available Counters Detected

While attempting to use perf monitoring, executing dmesg | grep "PMUdriver" returns 7 available performance monitoring counters. Learn how to utilize these counters for efficient system analysis.

Setting OpenDKIM SYSCONFDIR at Compile Time: A Tech Support Guide

Learn how to set the OpenDKIM SYSCONFDIR at compile time during the installation process. This tech support article provides instructions for setting the directory configure stage using the ./configure command.

Debian 12.5: Inconsistent Modification Time Preservation in Samba File Shares on macOS

Users report inconsistent preservation of modification times when copying files in Samba shares from Debian 12.5 clients to macOS Sonoma 14.5 systems.

Visual Studio Code Slowing Down in Parallels Ubuntu VM

Learn how to improve the performance of Visual Studio Code in a Parallels Ubuntu VM.

Understanding Compression Modes in ImageMagick: Lossless (-quality 100)

In this tech support article, we will discuss the different compression modes available in ImageMagick, focusing on the lossless (-quality 100) mode. We'll explain what lossless compression is, how it works, and its benefits.

Routing Traffic between Three WireGuard Nodes: Main-Server, Web-Gateway, and Client

Learn how to route traffic between a Main-Server, Web-Gateway, and Client using WireGuard. Discover the steps to configure connections for secure and efficient communication.

Understanding Compression Modes in ImageMagick: Lossless (-quality 100) vs. Others

In this tech support article, we'll explain the various compression modes available in ImageMagick, focusing on lossless (-quality 100) and its differences from other compression modes.

Troubleshooting SSH Timeout Issues with Ubuntu Virtual Machine in Oracle VirtualBox

Experiencing SSH timeouts when trying to connect to an Ubuntu virtual machine in Oracle VirtualBox? This article offers suggested troubleshooting steps.

Bulk Renaming File Contents: A Blonde Moment Solution

A user encounters an issue where they want to search and replace a particular string in file contents and rename files accordingly. Here's a possible solution using a script.

Failed to Load Image in digiKam on Ubuntu/Fedora 40

Users have reported issues with digiKam failing to load images after moving and installing on Ubuntu and Fedora 40. This article provides suggested solutions to help resolve the issue.

Bash AutoComplete: Custom Script Possibilities with a Text File

Learn how to use a text file to customize Bash auto-complete scripts for Linux systems. This article covers the requirements, process, and example usage.

Running 64-bit Linux Applications with Wine on Debian 12: Passing Images to IrfanView

Learn how to run 64-bit Linux applications, such as Krita, using Wine on Debian 12 and passing images to IrfanView.

Understanding Differences in Basenames and Outputs of '$x' and 'echo ${x##*/}'

In this tech support article, we will explain the differences between the basenames and outputs of the variables '$x' and 'echo ${x##*/}'. This article will provide a clear and SEO-optimized explanation using the given keywords.

Can I Merge Two LVM RAID1 Volumes Without Copying Whole LV Content?

Learn how to merge two existing LVM RAID1 volumes without copying the whole content of each volume.

Unable to Install Linux Headers 6.8.11-amd64

This article provides solutions to the issue of being unable to install Linux headers 6.8.11-amd64. Several methods have been tried, including updating and upgrading packages using apt-get, but the issue persists.

Achieving Full Cone NAT Connectivity inside K8s Pods: A Deep Dive

Learn how to configure Full Cone NAT connectivity for applications running inside Kubernetes pods. Discover the differences in implementation and explore the use of kubectl run natdisco.

Upgrading Embedded Device: Disabling net.ifnames in Debian Bullseye vs Debian Bookworm

This article provides a step-by-step guide on disabling net.ifnames in Debian Bullseye and Debian Bookworm to ensure a successful upgrade of an embedded device with an application that expects the eth0 Ethernet adapter.

Resolving Qt5xcb-plugin Installation Error: Could Not Load 'xcb' Platform Plugin

Learn how to resolve the Qt5xcb-plugin installation error 'Could not load 'xcb' platform plugin' by following the steps provided in this article.

FFmpeg: Hide Banner for Specific Y-Position in MP4 with Quality, Size, and Frame Rate

Learn how to hide a banner at a specific Y-position in an MP4 video using FFmpeg with custom quality, size, and frame rate settings.