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How To: Build a Laser Trip Wire Alarm System

Building a DIY Alarm System: The Concept So, you want to protect your property, or maybe a room, car, or even your backyard. The concept of an alarm system is to notify the "alarm administrator" that there is an intruder entering the previously designated boundaries. The triggers for this boundary could be as simple as a pressure sensor, or as complicated as a laser network. They all do the same thing, but some work better than others.

How To: Create a Reusable Burner OS with Docker, Part 1: Making an Ubuntu Hacking Container

Containers are isolated software instances representing applications, servers, and even operating systems—complete with all of their dependencies, libraries configuration files, etc.—and they're taking over the corporate world. The ephemeral, portable nature of containers help them stay current and speedy, and they can work on pretty much any computer, virtual machine, and cloud.

Networking Foundations: Subnetting Based on Host Requirements

Hello everyone! I hope you are having a great day so far. Today, instead of caring about networks we are going to talk about subnetting based on host requirements as promised in my first article about subnetting. Just like in the previous articles we will jump right into the examples because that's the best way to learn.

How To: Create Packets from Scratch with Scapy for Scanning & DoSing

By using almost any packet-crafting tool, a hacker can perform denial-of-service (DoS) attacks. With the power to create just about any packet with any characteristics, a hacker can easily find one that will take down a host or network. Nmap and Hping are effective packet manipulation tools, but there's also Scapy, which is almost infinitely customizable.

How To: Writing 64-Bit Shellcode - Part 2 (Removing Null-Bytes)

Welcome to the sequel to the latest post on writing 64 bit shellcode! This tutorial will assume that you are aware of everything mentioned in the last one, as I will try to make this tutorial void of formalities and straight to the point! If you have not read the last one, I suggest doing so unless you are familiar with basic assembly programming and system calls. This is by no means rocket science, so therefore I will simply repeat my TL;DR from last time before we get started, so that the a...

How To: The Novice Guide to Teaching Yourself How to Program (Learning Resources Included)

Today's post is a small go-to guide for beginner programmers in Null Byte. With many of our community members picking up programming from our Community Bytes, it only makes sense to lay out a one-stop guide for your reference. Hopefully this guide will help you make an educated and thoughtful choice on what programming languages you want to learn, and how you want to learn said languages.

How To: Read a Tape Measure

If you don't work in construction or are a woodworking master, you probably aren't entirely sure what all those marks are on a tape measure. Sure, you likely know the basics, like there are 12 inches to a foot, but what are all those little tick marks for? Don't let all those little lines dissuade you from using a tape measure. Follow these guidelines to help you read all those little ruler marks.

News: The Ultimate SCRABBLE Word List Resource

To some, SCRABBLE is just a board game to play during family game night or during a casual get-together. Others think of SCRABBLE as a mere hobby. But with any activity, there will always be fanatics—the ones who would rather sell their soul than stop—the ones with a constant yearning for self-improvement—the merciless.

How To: Introduction to Modern Cryptography

Cryptography is the science of keeping secrets, or more specifically, the science of disguising them. As a point of fact, cryptography has progressed quite a bit farther and now encompasses file and message integrity, sender authentication, and pseudo-random number generators.

News: Apple Just Released iOS 13 Public Beta 7 for iPhone to Software Testers

Beta testing certainly has its perks. While you do need to deal with bugs, you're introduced to new features before the general community. And if we're talking iPhones, there are over 200 new features in iOS 13 beta. If you're already on board with iOS 13 public beta 6 for iPhone, you can get an upgrade on that firmware as Apple just released public beta 7 today.

How To: Extend Your Bumble Matches at the Last Minute

On Bumble, you only have 24 hours to connect with a match. If no message is sent, your match disappears and your chance of a connection is gone, but that doesn't necessarily mean that the other person isn't interested. If they lose their phone or don't receive notifications, they might miss your message on accident. Life happens, so what can you do if your 24 hours to connect are almost up?