System & Network Admin

Take control of your internet privacy by running your own DNS server with open source tools.

In Linux, everything is a file, even physical devices such as disk drives, CD/DVD ROM, and floppy disks are represented using files.

The one-page guide to ffmpeg: usage, examples, links, snippets, and more.

iperf3 is available for all kinds of operating systems. The download page is on their official homepage. I'll use Linux as a reference for the server and client. Basic usage iperf3 is a tool to measur

Variables · Functions · Interpolation · Brace expansions · Loops · Conditional execution · Command substitution · One-page guide to Bash scripting

Like 'Bookworm' itself, software manager will have improved handling of non-free packages

In this guide, we will demonstrate how you can send messages to all logged-in users from the command line in the Linux system.

In this tutorial, you will set up and integrate sudoers to the OpenLDAP server. With this, you will have a centralized user and sudo privileges manage...

ApacheGUI is an open-source tool for system administrators to manage Apache Web Server from a browser, such as configuring and visualizing Apache Logs.

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Wallabag is a read-it-later kind of service. It allows you to save webpages to read later at your leisure pace. This tutorial will cover installing an...

Have you ever wondered how you can extract individual files from a Debian file (.deb) without actually installing any software?

This tutorial covers installing Grafana, Prometheus, and node exporter on Ubuntu 22.04 server. Youll build a powerful monitoring stack with Grafana a...

Email is a important part of communications today. Learn how you can take control over your data by hosting your own email server in Linux.

In this tutorial, you will learn how to set up an IKEv2 IPSec VPN using strongSwan using EAP-MSCHAPv2 authentication along with Lets Encrypt SSL cert...

This in-depth article on Fixed Length Subnet Masking (FLSM) in computer networks covers IP addressing, subnetting, FLSM, and examples, with a humorous tone.

Need the copyright symbol, but can't find it on your keyboard? Learn various ways to insert the copyright symbol anywhere online.

Technical Level : Intermediate Summary Now that you have Windows 10 setup the way you like, one of the most important things you can do right now is preserve your investment. Create a recovery drive

Follow along with this example of performing accessibility tests in GitLab with Pa11y and Cypress on a Jekyll website.

Comparing one of the most popular Postgres features against alternatives

This guide provides detailed instructions on how to generate a CSR code and install an SSL Certificate on the Postfix mail transfer agent…

Learn all about Pure Aloha in computer networks, from its protocol and collision avoidance mechanism to its advantages, disadvantages, and applications.

ExifTools is a very powerful-yet-easy-to-use application for reading, writing, and editing metadata of multimedia files in Linux systems.

A browser extension that mounts your browser tabs as a filesystem on your computer.

Cyclic Redundancy Check (CRC) ensures accurate data transmission in computer networks, including its basics, implementation, applications, strengths, and weaknesses.

Discover everything you need to know about High-Level Data Link Control (HDLC) in computer networking.

Binary Synchronous Communications Protocol (BISYNC) in computer networks - its architecture, operation, applications, advantages, and implementation.

This in-depth article explores the Point-to-Point Protocol (PPP) in computer networks, covering its features, functionality, and applications in WANs and ISPs.