Articles about linux | UserComp.com

Applying Patches to Hundreds of Duplicate Files with Different Names on a Linux System

Apply a single patch to hundreds of duplicate files with different names on Linux using find, xargs, and patch -p1.

Fixing Incorrect LVM Partition Allocations: Filesystem Size vs. Used and Available

Resolve LVM filesystem size discrepancies by extending logical volumes and growing the filesystem to match allocated extents.

Convert Video to Play on iPhone with ffmpeg on Linux

Resolve iPhone video playback failures by converting files to H.264 and AAC in an MP4 container with yuv420p pixel format using ffmpeg on Linux.

Accessing MacOS Host on Linux Container's VPN Network

Configure host routing, IP forwarding, and NAT to allow a macOS host to reach a Linux container's internal VPN network.

Using SSH Pass with Bash Script for Remote Access

Automate non-interactive SSH connections to remote servers using bash scripts and sshpass without manual password entry.

Configuring Dual Monitors in Kali Linux on One PC

Resolves dual monitor configuration issues in Kali Linux by guiding users through graphical settings and xrandr commands to enable, arrange, and troubleshoot multiple displays.

Tutorial: Nested ESXi 8 Instance with VMware on Linux

Resolves the inability to run nested ESXi 8 on Linux by configuring VMware Workstation with specific CPU flags and hardware settings.

Blocking Pornographic Content on a TP-Link Archer C20 Wireless Router

Block pornographic content on TP-Link Archer C20 by configuring OpenDNS FamilyShield or Cloudflare for Families DNS settings.

How to Configure Linux Guest with Dynamic Space in VirtualBox

Resolve disk space exhaustion in Linux VirtualBox guests by extending the VDI file and resizing partitions.

Dell Inspiron Not Recognizing Webcam After Reconnecting Docking Station

Resolve Dell Inspiron webcam recognition failure after docking by updating chipset drivers, disabling USB power management, and verifying privacy settings.

VMWare 17 Player Linux NAT guest can ping but cannot resolve DNS names

Fixes Linux guest DNS resolution failure in VMware 17 Player NAT by correcting resolv.conf and restarting network services.

Troubleshooting Cron Service Failures: Why and How to Fix

Resolve Linux cron service failures by verifying daemon status, analyzing system logs for errors, and correcting crontab syntax issues.

Suddenly Unable to Access the Internet: Works Fine Booting from USB Drive

Restore internet access in Linux Mint by restarting NetworkManager and resetting corrupted configuration files instead of purging packages.

OpenVPN Can't Open (Kali)

Resolve OpenVPN initialization failures on Kali Linux by fixing missing dependencies, correcting file permissions, and interpreting systemd logs.

Granting Temporary SSH Access: Using CA Private Keys and Public Keys

Eliminate manual cleanup of authorized_keys files by using SSH Certificate Authorities to automatically expire temporary user access.

Troubleshooting Kali Linux XFCE Exiting Game Played with Wine: Desktop Functionality and Appearance Issues

Resolve Kali Linux XFCE desktop issues like missing right-click menus and altered backgrounds caused by Wine game crashes.

How to List Available SMB Shares in Nautilus/Gnome

List available SMB shares in Nautilus by entering the server address in Other Locations or using smbclient -L from the command line.

Graphically Browse and Transfer Files on SSH Server using Various Linux Clients without using sshfs without Root

Browse and transfer files on a remote Debian server via SFTP using graphical clients like Nautilus or FileZilla with ProxyJump, without root access or sshfs.

Using External Hard Drive with Main Hard Drive: A Comprehensive Guide

Resolve external hard drive not detected or unmounted issues on Windows, macOS, and Linux by configuring disk management and file systems.

Kali Linux: Troubleshooting Temporary Failure in Name Resolution

Resolve the Temporary failure in name resolution error on Kali Linux by fixing DNS misconfigurations and restarting network services.

Connecting an Old HDD to a Laptop: External Driver and Connector Requirements

Connect old SATA hard drives to laptops using USB adapters, ensuring correct form factor and power supply for 3.5-inch models.

Unable to Login via SSH to EC2 Linux Instance on AWS: Unsupported Authentication Methods Available

Fix SSH login failures on EC2 Linux instances caused by missing or misconfigured authorized_keys files and incorrect file permissions.

Unable to SSH into Ubuntu Server: Log in Locally First

Resolve Ubuntu SSH connection failures by logging in locally to install the OpenSSH server, start the service, and configure firewall rules.

How to Ensure IPv6 Link-Local Address Format with MAC

Resolve IPv6 link-local address instability by disabling privacy extensions to enforce stable EUI-64 format derived from the MAC address.

Sudo User: Flag Not Using Designated User

Resolve sudo -u flag failures by verifying target user existence and correcting /etc/sudoers permissions.

Comparing Mathematical Formulas in Microsoft Word: Unicode Math vs. LaTeX

Resolve confusion between Unicode Math and LaTeX syntax in Microsoft Word to select the optimal input mode for efficient equation creation.

Viewing Group Output and Resource Usage with top on Linux: A Tech Support Guide

Resolve the inability to filter Linux top output by group name using grep and awk.

Fixing Kalilinux Installation: Unable to Fetch Release

Resolve the Kali Linux installation "Unable to fetch release" error by fixing network connectivity and configuring non-free firmware sources.

Using HDMI Port on HP Envy 23 All-In-One

Resolve HDMI port limitation on HP Envy 23 by using network software or capture cards to use the AIO as a secondary monitor.

Where is the Windows Store located in Windows 10?

Locate the Microsoft Store in Windows 10 via Start menu, taskbar, or Run command to resolve missing app access issues.

Can't Install OptiFine on Linux PC: A Comprehensive Guide

Resolve OptiFine installation crashes on Linux caused by the java.awt.HeadlessException No X11 DISPLAY variable set error.

Dual Boot Windows 10 and Arch Linux on Lenovo T430 with GRUB

Resolve missing Windows 10 entry in GRUB menu on Lenovo T430 dual boot by regenerating grub.cfg with mounted EFI partition.

How to X11 forward after multi hopping in SSH?

Resolve X11 forwarding failures across multiple SSH hops by configuring client proxy flags and enabling server-side X11Forwarding permissions.

SSH: Check Exact Command Used on Target Machine

Resolve unreliable command inspection by using SSH_CONNECTION or ps to verify exact remote executions instead of flawed $0 parsing.

How to Scroll Without Pausing in tmux: Fixing the Ctrl-B Pause Issue

Fix the Ctrl-B pause in tmux by setting prefix-timeout to 100ms in .tmux.conf for seamless scrolling.

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

Create a bootable DBAN USB drive on Linux using dd to securely erase data on legacy BIOS systems.

Setting Stack Sizes for Specific Processes in Linux: A Step-by-Step Guide

Prevent stack overflow crashes in specific Linux processes by adjusting ulimit stack size limits.

Understanding Variable Usage in systemd Unit Files

Resolve systemd unit file errors caused by incorrect shell-style variable expansion by using native specifiers and EnvironmentFile directives.

Squid Proxy: Why Nothing is Cached After Enabling or Disabling

Resolve Squid Proxy caching failures by fixing directory permissions, correcting cache_dir configuration, and addressing restrictive origin server headers.

Corrupted SSD: Unable to Allocate Items Showing 2GB, No Recovery Data Found

Resolve SSD corruption showing 2GB unallocated space after OS migration by recovering data from hidden partitions before reformatting.

Fix Error: Can't Open File $HOME/.zcompdump in Zsh

Resolve the Zsh error by fixing permissions, verifying $ZDOTDIR, and regenerating the .zcompdump file.

Configure Ethernet Port IP Address on Linux Notebook Running Wireshark for Passive Tap

Configure a static IP and force link state on Linux to enable Wireshark passive tapping without network interference.

BASH Script to Copy Image Files Recursively from Camera Folders and Rename with Creation Date

Organize camera photos by recursively copying them into date-based directories and renaming files to prevent collisions while safely handling special characters in filenames.

Remotely Granting User-Specific Access and Execution Permissions

Grant users remote access to specific folders and single executables on Linux and Windows while enforcing least privilege.

KDE Dolphin File Manager: Old Modified Files Show Relative Dates Instead of Absolute Dates

Fix Dolphin showing relative dates for old files by changing the Date column format to Absolute in Configure Current View Mode.

Getting Your PC Back in Good Health: Settings, Downloads, and Extensions

Resolve PC performance issues and security vulnerabilities by optimizing system settings, managing startup items, and cleaning temporary files across Windows, macOS, and Linux.

Dealing with Unmet Dependencies Error in Ubuntu

Resolve unmet dependencies errors in Ubuntu by updating package lists and using apt fix-broken install to repair broken installations.

Bypassing Admin Privileges Using USB Access Applications: A Curious Inquiry

Explains why USB applications cannot bypass admin privileges due to OS security models like UAC, SIP, and sudo.

Get tar command to show hidden resources for files archive?

Use tar -tvf to list hidden files and resource forks in archives for cross-platform compatibility.

Recovering from Loss of Connection When Mounting LUKS-Encrypted Disk-Containers Remotely

Resolve device busy errors when mounting LUKS containers over SSH by identifying and terminating orphaned cryptsetup processes using fuser and losetup.

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