Articles in Linux | UserComp.com

Couldn't Manage firewall setup on Debian 12 using nft, ufw worked intended

In this tech support article, we will guide you through setting up a firewall on Debian 12 using nftables and ufw. While nftables is the new firewall management system, ufw is a user-friendly frontend for iptables and easier to use for beginners. In this article, we will cover how to install, configure, and manage firewalls using both nftables and ufw.

Speeding up BTRFS metadata storage on a RAID1C3 volume with an SSD

In this article, we will discuss how to speed up BTRFS metadata storage on a RAID1C3 volume by adding a dedicated SSD for metadata caching.

Generate OPENSSH-RSA Key Deriv for GitHub Repository on Windows 10

Learn how to generate an OPENSSH-RSA key deriv for GitHub authentication on Windows 10.

Understanding the Difference Between ISO Files for Fedora 40 Server Edition

When planning a development environment project using Fedora 40 Server Edition, you may notice two different ISO file versions. In this article, we'll explain the difference between them.

Understanding Receiver Responses and Broadcast Requests in SPF Config Files

In this tech support article, we will explain the role of receiver responses and broadcast requests in SPF (Sender Policy Framework) config files. We will discuss the importance of checking the state of neighboring machines and provide examples of UDP pass and UDP server lines in SPF files.

Granting Sudo Privileges in Visual Studio Code for Apache, MySQL, and PHP on Fedora 40

Learn how to grant Sudo privileges to Visual Studio Code for editing files in Apache, MySQL, and PHP on Fedora 40. Follow these steps to make your development experience smoother.

SSH Connection (2-Hops) Troubleshooting on Your Device

Experiencing issues with SSH 2-hop connections on your device? Learn how to identify and resolve common problems in this comprehensive tech support article.

Connecting Kalilinux to Internal Network with Pfsense Firewall using VirtualBox: Troubleshooting Home Router Dashboard Issue

Learn how to connect Kalilinux to an internal network using Pfsense firewall in VirtualBox. Troubleshoot common issues like home router dashboard opening instead of Pfsense.

Ext4 vs NTFS: Throughput Differences with hdparm on a TB SATA HDD

When formatting a TB SATA HDD with NTFS and Ext4, the former achieves a transfer speed of 195MB/s during the Windows setup. However, when using Linux and the hdparm tool with Ext4, the throughput drops significantly. This article discusses the possible reasons behind this difference.

First ESXi Server Build with RAID: HP ProLiant DL360 Configuration

Learn how to install ESXi on an HP ProLiant DL360 server and configure RAID for redundancy.

Unclear Answer to 'yum check dependencies' Command in Tech Support

This article provides a solution for users who encounter unclear answers when running the 'yum check dependencies' command on a Red Hat Enterprise Linux (RHEL) 7.2 machine.

Yum checkdependencies Gives Unclear Answer: Understanding the Container Output

When running the yum checkdependencies command on an RHEL 7.2 machine, you may encounter a container output that seems unclear. In this article, we will explain what this output means and how to interpret it.

Finding the Correctly Executed Clang Version with Additional Arguments

In this tech support article, we will guide you on how to find the correctly executed version of the Clang compiler with additional arguments using the find and xargs commands on a Linux system.

Task Scheduler Not Running: Task Logged?

Encountered an issue where the Task Scheduler is not running tasks as expected. This article will guide you through checking task logs to identify the cause.

Configure Virtual DHCP Server in ESXi 7.0 using PfSense with a Physical Switch

Learn how to extend DHCP services provided by PfSense to physical devices outside the virtual environment in ESXi 7.0 using a physical switch.

How to Set CPU Turbofrequency Limit using acpi-cpufreqdriver in Linux

Learn how to set the CPU turbofrequency limit using acpi-cpufreqdriver in Linux. This guide covers the process of disabling intel_pstate driver and setting frequency using the cpufreqdriver.

Setting ACPI OS String Parameter to Windows 2015

Learn how to set the ACPI OS string parameter to Windows 2015 on a Linux system. The 'sudo dmesg | grep -i added' command doesn't show the added OS string. Follow this guide to make the necessary changes.

Tackling Unmet Dependencies and Broken Packages in Debian: A Steam (Nala) Installation Issue

Encountered 70 broken packages while attempting to install Steam via an alternative Debian repository. Learn how to repair and fix these issues to successfully install Steam.

Setting up complex filters, zoom, pan, Xfade with FFmpeg using Fluent-FFmpeg

In this tech support article, we will guide you through setting up complex filters, zoom, pan, and Xfade using Fluent-FFmpeg on your Linux system.

Troubleshooting Infinite Loop Errors during Fishshell Startup with Cygwin

This article discusses the issue of infinite loop errors encountered during Fishshell startup in Cygwin environment. It provides suggestions to resolve this problem.

Laptop Dual Boot Stops Working: Try Pressing Power Button for 30 Seconds

Encountered issues with your laptop's dual boot system? Try this simple yet effective solution: press and hold the power button for 30 seconds.

Resetting VnStat Traffic Statistics Like Never Installed

Learn how to reset VnStat traffic statistics on Linux, Windows, and MacOS systems. This guide covers stopping and restarting the VnStat service.

Creating a Docker Container for React: Installing Dependencies Once

Learn how to create a Docker container for a React project and install dependencies only once.

Troubleshooting Slow Upload Speeds on KVM Host with Fedora 40 and Virtual Machines

Learn how to diagnose and resolve slow upload speeds on a Fedora 40 server running KVM and several virtual machines using Libvirt.

Disk Management: Values of 700GB Files Deleted After Installing Ubuntu on Dell XPS 17 9710

A user encountered an issue where 700GB of files were deleted after installing Ubuntu 24.04 alongside Windows 11 on their Dell XPS 17 9710, which has a 2TB SSD. In this article, we'll discuss the possible causes and solutions for this problem.

Incorrect pts filename with ffmpeg's -ss and -frame_pts true

This article explains an issue encountered when using FFmpeg's -ss and -frame_pts true options, resulting in an incorrect pts filename. It provides a solution by modifying the ffmpeg command.

Catching a Cat Sitting at the Keyboard: Terminal Doesn't Accept Command-line Parameters in Zsh or Bash

Users report encountering issues when trying to pass command-line arguments to terminal applications such as ls or cd in Zsh and Bash. This article explains the cause and provides potential solutions.

Setting Up a Development Environment with Low Permissions and VSCode for SSH Remote Desktops and WSL

Learn how to set up a development environment using Visual Studio Code (VSCode) for SSH remote desktops and WSL with low laptop permissions.

Ubuntu Desktop VNC Connection Failing After Nvidia Driver Update

Users updating Nvidia drivers on Ubuntu 18.04 have reported issues with VNC connections to their desktops. This article explains possible solutions.

Iostat not showing I/O statistics for every device within a 2-minute time window

The user is experiencing an issue where iostat is not displaying I/O statistics for all devices within a 2-minute time window. This article provides possible solutions for this problem.

Successfully Quitting Mosh: Ctrl-^. Key Combination

Learn how to quit Mosh successfully using the suggested key combination: Ctrl-^.

Unable to Access Distro During sudo apt-get dist-upgrade on Dual Boot Laptop

Users report encountering a blank screen and flashing cursor in the upper left corner after running sudo apt-get dist-upgrade on a dual boot laptop with Bodhi Linux and Kali.

AlmaLinux 9.4 Multi-NIC Routing Issue with 'use()' function including redhat CentOS

Users of AlmaLinux 9.4 are encountering issues with multi-NIC routing when implementing the 'use()' function, which is also present in CentOS. This article aims to provide a solution for this problem.

RAID Re-sync: Can Operating Systems Be Run Separately?

Learn whether operating systems can be run separately during a RAID re-sync process. This article covers the scenarios of NTFS and LUKS+LVM systems.

Resolving Permission Error While Mounting ext4 Drive in Manjaro Linux

This article provides a solution to a common issue encountered while trying to mount an internal ext4 drive in Manjaro Linux. The error message 'permission denied' is discussed, and steps to resolve it are outlined.

Advanced Image Backup and SD Card/USB Storage Handling

Learn how to handle image files from and to SD cards and USB storage devices using advanced tools. Dd commands can be slow and inefficient for copying free space. This article suggests an ideal tool for Linux users.

Understanding the Difference Between VirtIO and Red Hat QEMU SCSI Disks in virt-manager

In this tech support article, we will explain the difference between using VirtIO and Red Hat QEMU SCSI disks when creating virtual machines with virt-manager. Previously, users have had experience migrating IDEVM disks to VirtIO SCSI, and created a Windows VM with a primary disk setup using virt-manager. Here, we will create a new VM and compare the setup process and performance of VirtIO and Red Hat QEMU SCSI disks.

Encrypt Local Traffic: Setting Up WireGuard for Gateway Services