Articles about linux | UserComp.com | Page [ 2 ]

Prevent Command Leading Spaces Showing in zsh History on macOS

Configure HIST_IGNORE_SPACE in zsh to exclude commands with leading spaces from the history file on macOS.

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Converting Printable Flashcard Sets to Digital Flashcard Sets

Convert image-based or poorly formatted PDF flashcards into structured CSV files using OCR and text cleaning for digital study apps.

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Unable to Understand Route Host Interface Bridge: Solutions Provided

Resolve Linux bridge routing confusion by configuring Layer 3 IP forwarding and NAT instead of attempting to route directly on a Layer 2 bridge interface.

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Modifying a Single Variable in Multiple Versions of a File Across Multiple Directories

Replace a specific variable across multiple files in nested directories using find and sed on Linux or PowerShell on Windows.

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Change Browser Hyperlink Open in Excel

Fix Excel hyperlinks opening in the wrong browser by changing the operating system's default web browser settings.

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Doesn't ifconfig show IPv4 address? (IPv6 related)

Resolve missing IPv4 addresses in ifconfig by using ip addr show on modern Linux systems.

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How to Use xrandr Command to Turn On Your Monitor in Linux

Use xrandr to re-enable logical display outputs and wake monitors stuck in standby mode after Linux suspend cycles.

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Troubleshooting Linux RHEL 7 - Ansible - Execute command in shell

Resolve Ansible shell module failures on RHEL 7 by fixing permission denied, file not found, and SELinux errors through proper user context, absolute paths, and security policy adjustments.

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Accessing Old Files on Windows 95 FAT32 Hard Drive with Modern Windows or Linux Machine

Resolve physical interface incompatibility and permission errors to access files on legacy Windows 95 FAT32 hard drives using modern Windows or Linux systems.

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Jumping Beginning Command in Windows Terminal: An Alternative Solution for Linux Users

Add custom keybindings in Windows Terminal settings.json to enable Ctrl+A and Ctrl+E for line navigation.

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Converting Rec.709 Time-Lapse Images using FFmpeg

Resolve color shifts and hue inaccuracies when converting Rec.709 time-lapse images to video using FFmpeg.

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Understanding SMART Reallocated Sectors Count on a 5TB USB HDD for NAS

Resolve SMART Reallocated Sectors Count warnings on 5TB USB HDDs in NAS environments by identifying impending drive failure and triggering immediate data backup.

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Connect Specific IP Address Server on VirtualBox Behind NAT

Configure VirtualBox NAT port forwarding to allow host access to a specific guest server IP and port.

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Accessing Files Stored on USB Drive Connected to Second Router with Devices Connected to First Router

Resolve network connectivity issues to access USB files on a secondary router from devices connected to the primary router.

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Permission denied when trying to SSH into CISCO virtual router

Resolve SSH permission denied errors on Cisco virtual routers by verifying local user credentials and VTY line authentication settings.

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Replacing Special Characters in a Text File with Linux Command Line

Use sed to replace special characters in Linux text files while preserving data integrity and handling shell escaping correctly.

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

Add VMware SVGA display driver with specific parameters to a virtual machine in virt-manager by editing the VM XML definition.

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SSH Permission Denied on Port 22: Home Lab Server Issue

Resolve SSH permission denied errors on Ubuntu 24.04 by verifying service status, correcting sshd_config authentication settings, and fixing .ssh file permissions.

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Unable to Copy Certain Files between Linux and Windows Shares

Resolve file copy failures between Linux and Windows by fixing SMB mount options, character encoding, and permission mapping.

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Credentials Needed for Viewing Files on PC

Resolve permission denied errors when viewing protected files on Windows and Linux by using network credentials, sudo, or changing ownership.

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Giving User Permissions as Root Using Sudo: Two Methods Explained

Grant users administrative privileges via sudo by adding them to the sudo group or editing the sudoers file.

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Understanding VA and Watts Ratings in UPS Battery Backups

Prevent UPS overload by sizing the unit based on its watt rating rather than the higher VA rating to account for power factor differences.

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Closing SSH Connection with Keygen: A Guide to Securely Disconnecting from Linux Servers

Resolve confusion between ssh-keygen and session termination by using the exit command to securely close SSH connections.

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Building a Diskless Kiosk with Alpine: Keyboard and Mouse not working in Xorg

Resolve keyboard and mouse failures in Xorg on Alpine Linux diskless kiosks by fixing missing kernel modules, udev rules, and input driver configurations.

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Strange Get Request: Understanding the 'rm -rf' Command in a GET Request

Prevent OS command injection attacks where malicious GET requests execute dangerous rm -rf commands to delete server files.

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Customize Math Formula Replacements in OneNote 365

Solve the lack of a dedicated dialog for custom Math AutoCorrect rules by using built-in LaTeX syntax to convert text into professional mathematical notation in OneNote 365.

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Identifying and Utilizing Spare Capacity on Your Storage Drive

Explain why users cannot manually access or format the hidden spare capacity on storage drives and how it protects data integrity.

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Combining Two Networks into One Network on Huawei EG8145V5 Router

Merge two Huawei EG8145V5 routers into one flat LAN by disabling DHCP on the secondary unit and connecting via LAN ports.

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Socat Not Support Multiple TTY/SSH Connection on Windows

Resolve Socat port binding conflicts and deadlocks when managing multiple simultaneous TTY or SSH sessions on Windows by using SSH ControlMaster or native OpenSSH background forwarding.

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Troubleshooting Alias Command 'Nothing' in Tech Support

Resolve empty alias output by distinguishing shell aliases from exported functions for subprocess visibility in Python scripts.

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Tomcat runs from the command line, but will not start as a systemd service

Resolve Tomcat systemd startup failures by configuring environment variables, fixing file ownership, and adjusting SELinux policies.

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Understanding Program Dependency on Processor Architecture

Resolve program compatibility errors caused by mismatched processor architectures like x86_64 and ARM.

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

Resolve blank screen boot failures after sudo apt-get dist-upgrade on dual boot systems by fixing GRUB and broken package states.

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Linux Find Command Using 'delete' and 'prune' Gives Error: A Guide for Tech Support

Resolve Linux find command errors when combining delete and prune by separating operations or using -exec rm -rf.

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Linux Boots Grub - How to Fix a Broken grub.cfg

Regenerate a broken grub.cfg using update-grub or a Live USB to restore Linux booting and resolve missing kernel errors.

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Stop Anki Blocking Card Review

Resolve Anki card review blocks caused by stale lock files or conflicting add-ons by clearing temporary data and disabling incompatible extensions.

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Problems accessing home network web pages - Router DNS issue?

Resolve LAN access failures to local web pages by fixing UFW firewall rules, DHCP issues, or router isolation settings.

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Two Routers Fighting Internet Connection: Vodafone Hub Router vs TP-Link Modem Router

Resolve Double NAT and IP conflicts between Vodafone Hub and TP-Link router by enabling Access Point mode or disabling DHCP.

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Locking User Accounts with Sudo Commands Without Rebooting: A Use Case for Linux Desktop

Lock a Linux user account immediately with sudo passwd -l to prevent password authentication without rebooting.

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Equating Font and Color Size in Different Cells: One Cell Equals Another

Resolve inconsistent font sizes and colors in Excel by using Format Painter or keyboard shortcuts to manually sync cell styles.

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Can I Use Windows 10 VPN Client on Linux Debian?

Resolve Windows 10 VPN client incompatibility on Linux Debian by installing protocol-specific clients like OpenVPN or WireGuard.

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Streaming videos from 4 TP-Link IP cameras on an old Mini PC using H.265 for storage space

Configure TP-Link cameras to H.265 and use FFmpeg on an old Mini PC to reduce storage space while managing CPU load for four simultaneous streams.

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Dual Booting Windows 10 and Arch Linux: Fixing One OS Switch Reboot Issue

Fixes dual boot reboot failure between Windows 10 and Arch Linux caused by Fast Startup locks, Secure Boot mismatches, or outdated GRUB entries.

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Scheduled Crontask Terminal Execution: Different Results

Resolve cron job failures caused by missing environment variables, incorrect working directories, and undefined paths by explicitly sourcing profiles or using absolute paths.

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Doesn't 'etc/logrotate.d/tomcat-run.daily' take effect: Manual trigger?

Resolve excessive disk usage from large catalina.out files by manually forcing immediate log rotation via the logrotate command.

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Linux: systemd-resolved Not Answering Multicast DNS

Enable systemd-resolved to answer Multicast DNS queries by setting mdns=yes in resolved.conf and restarting the service.

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Access Denied Error While Accessing Expansion Drive via USB Port

Resolve Access Denied errors on USB expansion drives by fixing permission mismatches, repairing file system corruption, and updating drivers.

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Making a Debian Linux Application Run at Startup with InstallBuilder

Configure a Debian application to start automatically at boot by registering systemd services or legacy init scripts during installation with InstallBuilder.

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Recovering Data from an Old Acer Aspire Laptop Hard Drive

Recover data from an old Acer Aspire hard drive by connecting it as a secondary internal disk or via a powered SATA-to-USB adapter without booting external media.

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Dual-booting Win11 and Artix Linux: Grub Rescue Unknown Filesystem

Fix GRUB Rescue Unknown Filesystem error in Windows 11 and Artix Linux dual-boot by reinstalling GRUB via chroot.

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