System Administration

Rayhunter Installation Tutorial: Convert Verizon Orbic Speed RC400L into a "Stingray" Detector

Rayhunter Tutorial: Convert a Verizon Orbic Speed RC400L into a Stingray Detector

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In this tutorial, we will show you how to install Rayhunter on a Verizon Orbic Speed RC400L mobile hotspot using Kali GNU/Linux on a x86_64 architecture computer. This article will also detail accessing the Rayhunter web interface, maintaining your Rayhunter, and [optionally] reporting Cell Site Simulator (also known as IMSI-catcher or “Stingray”) detection data to the Electronic Frontier Foundation (EFF) for further analyzation. Rayhunter setup is cheap (~$20) and user-friendly – a project for technical and less-technical users alike!

NOTE
Although not covered in this tutorial, Rayhunter is also able to be installed using Operating Systems other than GNU/Linux such as MacOS and Windows, and computer architectures other than x86_64, such as ARM64, and ARMv7/v8 32-bit.

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exa vs ls Linux Commands Comparison: Modern File Listing for Power Users

exa vs ls Comparison: Modern File Listing for Power Users

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The ls command on Linux systems has been the standard file listing utility for decades, but a modern alternative called exa is gaining popularity among system administrators and developers. Written in Rust, exa offers enhanced features, colorful output, and better defaults compared to the traditional ls command. This comprehensive comparison will help you understand the differences between exa vs ls commands and decide which file listing tool better suits your workflow. In this tutorial, you will see how both commands work, their unique features, and when to use each one for optimal productivity on the Linux command line.

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Abstract Ubuntu networking visualization with orange and purple gradient waves, interconnected glowing nodes and network pathways

Ubuntu Change IP Address: Server and Desktop Guide

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You have two options when configuring the IP address on your Ubuntu system, and that is either a static IP address or DHCP. A static IP address allows you to manually select your IP address by configuring it on the Linux system, whereas DHCP relies on the router or DHCP server to lease you an IP address, either a reserved one or the next available one that is currently free, depending on the setup.

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How to set time on Raspberry Pi

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The objective of this tutorial is to show how to set the system time, as well as the date, on a Raspberry Pi. Whether you need to configure the correct time zone or manually adjust the system clock, knowing how to set time on a Raspberry Pi is essential for proper system operation. Picking the time zone for your Raspberry Pi is usually done during installation of the operating system, and then the system date and time will be automatically synchronized with time servers online, according to the time zone that you have chosen. However, there are situations that can require us to manually configure the date and time, or change the time zone if switching locations. Let’s see how to do it.

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