Articles in Linux | UserComp.com

How to Properly Set sudo crontab to Backup Files with Superuser Rights Nightly

Learn how to set up a sudo crontab to perform nightly file backups with superuser rights. This article provides step-by-step instructions for configuring the crontab in Linux, specifically focusing on the zsh shell. By following these guidelines, you can ensure that your important files are backed up regularly and securely.

FortiClient VPN in KUbuntu 22.04 with SSO gets stuck in "Connecting..."

Learn how to troubleshoot the issue of FortiClient VPN getting stuck in "Connecting..." on KUbuntu 22.04 with SSO. Find step-by-step solutions and fixes to resolve the problem and establish a successful VPN connection.

Using Complex Find Statements in Bash Shell Scripting

Learn how to utilize complex find statements in Bash shell scripting to efficiently search for files and directories. This article provides a comprehensive guide on constructing intricate find commands, including the proper usage of special characters like backslash, colon, semicolon, single quotes, and double quotes, all of which are HTML encoded. Enhance your Bash scripting skills and optimize your file searching capabilities with complex find statements.

Keyboard Shortcut Repeatedly Stops Working in Xubuntu

Encountering an issue where a keyboard shortcut repeatedly stops working in Xubuntu? This article provides troubleshooting steps and solutions to resolve the problem, ensuring a smooth workflow in the Xfce desktop environment.

How to Connect Bluetooth Permanently in Linux

Learn how to connect Bluetooth permanently in Linux. This article provides step-by-step instructions and troubleshooting tips for a seamless Bluetooth connection in Linux-based systems. Whether you are using Ubuntu or any other Linux distribution, this guide will help you overcome common Bluetooth connectivity issues and ensure a stable and reliable connection.

Notebook Booting Only Sometimes: Troubleshooting Linux Boot Issues

Having trouble with your notebook booting only sometimes? This article provides troubleshooting tips for Linux boot issues, focusing on BIOS, GRUB, and the bootloader. Learn how to resolve this frustrating problem and get your notebook up and running consistently.

rm not removing directory: How to fix the issue in bash scripting

Learn how to fix the issue of rm not removing directory in bash scripting. This article provides step-by-step instructions and solutions to resolve the problem, ensuring smooth file management and deletion in your Linux system.

Understanding Linux Partition Mountpoints: A Comprehensive Guide

Learn how to effectively manage Linux partition mountpoints in this comprehensive guide. Explore the concept of mountpoints, understand their significance in the Linux file system, and discover how to mount partitions in Ubuntu. Gain valuable insights into optimizing your Linux storage and enhancing system performance.

Manually Installing GRUB Boot Loader on Kali Linux Virtual Machine

Learn how to manually install the GRUB boot loader on a Kali Linux virtual machine in VirtualBox. This article provides step-by-step instructions and troubleshooting tips for successfully setting up the bootloader.

Replacing 1 SSD in software RAID10 system

Learn how to replace a single SSD in a software RAID10 system on CentOS using mdadm. This article provides step-by-step instructions and tips for a smooth replacement process.

How to Access IP/Hostname on Windows using SSH Server

Learn how to use your personal Windows computer to access an IP address or hostname that can only be accessed through an SSH server. This article provides step-by-step instructions and tips for setting up SSH connections on Windows, allowing you to connect to remote devices securely. Explore the use of VPN and Putty for enhanced network security and efficient remote access.

Troubleshooting: Mdadm RAID 5 Array Size is Smaller than Expected

Learn how to troubleshoot and resolve the issue of a Mdadm RAID 5 array being half the expected size. This article provides step-by-step instructions and tips to fix the problem and ensure optimal performance of your Linux-based RAID system.

Getting shared folders to work on a VM with open-vm-tools

Learn how to enable shared folders on a virtual machine running Ubuntu using open-vm-tools. This article provides step-by-step instructions to ensure smooth file sharing between the host and guest OS.

Defining PulseAudio Remap Sink When Master Device Exists

Learn how to define a PulseAudio remap sink when a master device exists. This article provides step-by-step instructions and troubleshooting tips for configuring audio settings in Linux using PulseAudio. Explore the process of remapping audio sinks and ensuring compatibility with existing master devices.

Troubleshooting Kali Linux Stuck at Dragon Logo on Shutdown or Restart

Learn how to troubleshoot the issue of Kali Linux getting stuck at the Dragon Logo during shutdown or restart. This article provides step-by-step instructions to resolve the problem and ensure a smooth shutdown or restart process on your Kali Linux system.

Error when trying to build Docker container on external SSD (Ubuntu 22.04.2)

Encountering an error while attempting to build a Docker container on an external SSD connected to Ubuntu 22.04.2? This article provides troubleshooting steps and solutions to resolve the issue, ensuring a successful container build process on your system.

Troubleshooting Undefined Symbol After Sourcing ROS

Learn how to troubleshoot the 'Undefined symbol after sourcing ROS' error on Ubuntu. This article provides step-by-step instructions to resolve the issue and discusses the role of Python libraries in ROS development.

Troubleshooting `gio open` Failures with Mime Configuration in GNOME, Xfce4, and XDG

Learn how to troubleshoot `gio open` failures when it fails to use its own mime configuration in GNOME, Xfce4, and XDG environments. This article provides step-by-step instructions and tips to resolve issues related to mime config settings and ensure seamless file opening within these desktop environments.

Is it Possible to Run a Ceph RBD on Erasure Coded Ceph Pool Without a Separate Replicated Metadata Pool?

Learn if it is possible to run a Ceph RBD on an erasure coded Ceph pool without the need for a separate replicated metadata pool. Explore the potential benefits and considerations of this configuration in Ceph storage environments.

Unable to connect to my remote desktop

Having trouble connecting to your remote desktop? This article provides solutions and troubleshooting tips for resolving issues related to connecting to remote desktops on Linux. Whether it's a problem with your router configuration or a network issue, we've got you covered. Learn how to troubleshoot and fix connectivity problems to ensure seamless remote desktop access. Additionally, we address specific scenarios related to MySQL and offer step-by-step instructions to overcome any obstacles you may encounter.

Troubleshooting: Can't Get Window After Install of Debian Bookworm

Having trouble getting a window to appear after installing Debian Bookworm? This troubleshooting guide provides step-by-step instructions to help you resolve the issue. Explore solutions related to Linux, Debian, Xorg, KDE, and more.

How to Restrict Access to Local Devices on the Network with iptables

Learn how to use iptables to restrict access to only local devices on your network. This article provides step-by-step instructions and tips for configuring iptables firewall rules to enhance network security and prevent unauthorized access.

Dovecot and Two Places for Messages: Troubleshooting Guide

Learn how to troubleshoot and resolve the issue of message duplication in Dovecot email server. This guide provides step-by-step instructions and solutions to ensure your messages are stored in the correct places, avoiding any potential data loss or confusion.

-bash: ../binutils-2.38/configure: Permission denied

Learn how to troubleshoot the error message '-bash: ../binutils-2.38/configure: Permission denied' when compiling with gcc. This article provides step-by-step instructions to resolve the issue and get your compilation process back on track.

Fixing a Debian Server that Doesn't Boot after Enlarging a Partition

Learn how to resolve the issue of a Debian server that fails to boot after enlarging a partition. This article provides step-by-step instructions on using fdisk and other techniques to fix the problem and get your server up and running again.

Troubleshooting Prometheus Node Exporter Connection Issues

Learn how to troubleshoot connection issues between Prometheus and Node Exporter in a Docker environment. This article provides step-by-step instructions to resolve common networking problems and ensure seamless integration with Grafana for monitoring and visualization purposes.

Block MAC Address with Iptables During Attack

Learn how to use Iptables to block MAC addresses during a network attack. Enhance your Linux security by effectively managing network traffic and preventing unauthorized access.

VNCServer shows grey screen on port 1, but desktop environment works on other ports

Encountering a grey screen when using VNCServer on port 1 but having a functional desktop environment on other ports? This article provides troubleshooting steps and solutions for resolving this issue in Linux systems, specifically Ubuntu, using Xorg and TightVNC.

How to Fix Terminal Font after Accidentally Using cat on an Executable

Learn how to restore your terminal font after mistakenly using the cat command on an executable file. This article provides step-by-step instructions to fix the font without the need for a system reboot.

Is it safe to expose a port opened from netcat?

Learn about the safety implications of exposing a port opened from netcat. Explore the risks and potential vulnerabilities associated with this practice in the context of Linux networking. Stay informed and make informed decisions to safeguard your system.

Ubuntu: Unable to use partition, won't show up on lvdisplay, vgdisplay, nor pvdisplay

Having trouble using a partition on Ubuntu? Learn how to troubleshoot and fix the issue when the partition doesn't show up on lvdisplay, vgdisplay, nor pvdisplay. Get step-by-step instructions and expert tips to resolve the problem efficiently.

How to Display a Browser-Based Interface on a GUI-Less Computer

Learn the simplest way to display a browser-based interface on a computer without a GUI. This article explores Linux, command-line, SSH, window managers, and BSD to help you access web interfaces on GUI-less systems.

Troubleshooting: No Data Reported by btt in blktrace Tool

Learn how to troubleshoot the issue when the btt tool in blktrace does not report any data. This article provides step-by-step instructions to resolve the problem and improve performance. Explore various aspects of Linux filesystems, IO, and block devices to understand the underlying causes and find effective solutions.

Bash Shell - Shorter Way to Remove Last Characters from the File Name

Learn how to efficiently remove the last characters from a file name using the Bash shell. This article provides a shorter method for achieving this task, saving you time and effort. Explore the power of the command-line interface and enhance your file management skills in Linux.

Connect to a remote MariaDB server using VirtualMin

Learn how to connect to a remote MariaDB server using VirtualMin. This article provides step-by-step instructions for establishing a secure connection and managing your database remotely. Gain full control over your MariaDB server from anywhere using VirtualMin's intuitive interface.

Troubleshooting: Fedora 38 Installation Issue with Fedora 34

Having trouble installing Fedora 38 when Fedora 34 is already installed? This article provides troubleshooting steps to resolve the installation issue and ensure a successful upgrade. Explore solutions related to Linux, Ubuntu, boot, Fedora, and GRUB.

Troubleshooting Unmounting Issue for Newly Created Home in Secondary Hard Drive

Learn how to troubleshoot the issue of a newly created home in a secondary hard drive unmounting after restart on Fedora. Explore possible solutions, including the use of fstab, to resolve this problem and ensure a stable mounting of the home directory.

Unable to traceroute but able to ping - Troubleshooting Linux Networking Issues

Having trouble with traceroute but able to ping? This article provides troubleshooting steps for Linux networking issues, including firewall configuration and iptables settings. Learn how to diagnose and resolve the problem to ensure smooth network connectivity.

Audio tags added with ffmpeg do not show up in cmus

Learn how to troubleshoot the issue of audio tags not appearing in cmus after adding them with ffmpeg. This article provides insights on using ffmpeg, wav, ffprobe, and cmus to resolve the problem and ensure proper display of audio tags in cmus.

How to Specify Path for User Certificate in SSH

Learn how to specify the path for a user certificate in SSH. This article provides step-by-step instructions and tips for optimizing your SSH configuration. Discover the importance of correctly setting the path for your user certificate to ensure secure and efficient SSH connections.

Troubleshooting Samba Share Access Issues on Ubuntu 22 LTS and Windows 10

Encountering difficulties while accessing Samba shares on Ubuntu 22 LTS and Windows 10? This article provides troubleshooting steps to resolve credential acceptance issues and regain seamless access to your network shares.

Duplicate Entries in lsblk Output: Troubleshooting Guide for CentOS 7

Learn how to troubleshoot and resolve duplicate entries in the lsblk output on CentOS 7. This comprehensive guide provides step-by-step instructions and useful tips to identify and fix the issue, ensuring accurate and reliable disk information. Discover common causes, potential conflicts, and recommended solutions for a seamless experience with lsblk command on CentOS 7.

Troubleshooting rdesktop Failure with BadWindow (invalid Window parameter)

Learn how to troubleshoot the rdesktop failure with BadWindow (invalid Window parameter) error on Linux systems. This article provides step-by-step instructions and tips to resolve the issue and ensure smooth operation of the rdesktop tool in conjunction with xmonad window manager.

Understanding Linux Drivers for ARM GPIO and Pin Control

This article provides an in-depth understanding of Linux drivers for ARM GPIO and pin control. Learn how to effectively utilize GPIO and pin control in ARM-based systems and enhance hardware functionality. Explore the intricacies of Linux driver development and gain insights into optimizing performance and ensuring compatibility. Discover the power of ARM architecture in driving efficient and reliable hardware interactions within the Linux environment.

Is it possible to OpenVPN connection UDP through SSH tunnel?

Learn how to establish a UDP connection for OpenVPN through an SSH tunnel on Linux. This article explores the possibilities and provides step-by-step instructions for setting up the configuration. Enhance your network security and enjoy the benefits of this powerful combination of technologies.

Make FRP get the full HTTPS on VPS with Nginx

Learn how to configure FRP to enable full HTTPS on your VPS using Nginx as a reverse proxy. This article provides step-by-step instructions for Ubuntu 22.04 users, ensuring secure and encrypted connections.

NTFS Drive visible only from Linux

Learn how to troubleshoot and fix the issue of an NTFS drive being visible only from Linux. This article provides step-by-step instructions for resolving the problem and ensuring compatibility between Linux and Windows systems.

Remote VNC from Mac to Linux machine only shows top left corner of the Linux machine

Learn how to troubleshoot the issue where remote VNC connection from a Mac to a Linux machine displays only the top left corner. Find step-by-step instructions to fix this problem and regain full access to your Linux machine.

Troubleshooting Laptop Not Suspending After Closing Lid: Empty `journalctl` Output

Having trouble with your laptop not suspending after closing the lid? Check out this troubleshooting guide for solutions. Explore the surprising emptiness of `journalctl` output and learn how to fix the issue related to drivers, Arch Linux, and Nvidia graphics cards.

Troubleshooting Android Connection Issues with Linux Access Point

Having trouble connecting your Android device to a Linux Access Point? Learn how to troubleshoot and resolve the 'Saved' connection issue in this helpful guide. Explore solutions for seamless connectivity between your Android device and Linux Access Point.