How to reset a user password in Ubuntu

Post author:ziad nahdy
Post published:May 3, 2025

If you do not remember your user password, then you need to reset it. Follow the steps below in order to do so . (more…)

Guide to Linux Ubuntu/Debian log files for beginners

Post author:amin nahdy
Post published:April 13, 2025

Updated – Ubuntu logs system events into the log files in order to help administrators maintain, analyze and diagnose system related issues and applications problems. (more…)

How to use systemd Units on Ubuntu 20.04: A Sysadmin’s Deep Dive

Post author:Nikolaus Oosterhof
Post published:March 9, 2025

If you’re managing Ubuntu servers or desktops, understanding systemd is absolutely essential. systemd is the init system and service manager that’s become the standard for most Linux distributions, including Ubuntu. (more…)

Linux Firewall: The Complete Guide to IPtables, NAT, ip6tables and Network Security

Post author:net2
Post published:March 8, 2025

As Linux administrators, securing our systems and networks is one of our most critical responsibilities. Firewalls serve as the cornerstone of that security, and in the Linux ecosystem, iptables, ip6tables, (more…)

The Ultimate Guide to Viewing and Analyzing Core Dump Files on Ubuntu

Post author:Nikolaus Oosterhof
Post published:March 8, 2025

When developing software, particularly in languages like C and C++, crashes are inevitable. The dreaded “Segmentation fault (core dumped)” message can be frustrating, but the core dump it generates is a valuable debugging tool. (more…)

How to fix high memory usage in Ubuntu

Post author:Nikolaus Oosterhof
Post published:February 14, 2025

If you’ve observed your computer’s performance degrading, becoming noticeably slower, the reason might be applications silently consuming excessive memory. (more…)

How to Fix the “sudo systemd-resolved command not found error Ubuntu”

Post author:net2
Post published:January 19, 2025

Encountering the error “sudo systemd-resolved command not found error Ubuntu” indicates that your system cannot locate the systemd-resolved executable within your PATH. (more…)

How to display your sound card details using the terminal on Ubuntu 22.04

Post author:Nikolaus Oosterhof
Post published:September 24, 2024

Understanding your sound card setup is vital for Ubuntu administrators to verify hardware compatibility and driver functionality. With a few simple terminal commands, you can retrieve valuable details about your audio devices and drivers in Ubuntu 22.04. (more…)

How to Configure Network Settings in Ubuntu 22.04

Post author:Nikolaus Oosterhof
Post published:July 16, 2024

Properly configuring networking is vital for any Ubuntu desktop or server. In this introduction, we’ll cover the key topics involved in managing network settings on Ubuntu 22.04 systems. (more…)

12 Linux Basic Health Check Commands for Monitoring Performance

Post author:outside contributor
Post published:July 7, 2024

By Christine Tomas – The significant feature of Linux — is its transparency and openness to change. But users pay for it with the standardization of the command process. (more…)