How to Build an Operating System From Scratch

▼ Summary
– The author is developing an operating system called NiftyOS from the very beginning.
– NiftyOS will include many defensive cybersecurity tools intended for ethical (white hat) hacking.
– The author defines ethical hacking as legal, authorized security testing to assess system strength.
– The text describes a constant conflict between white hat hackers and illegal black hat hackers or cyber criminals.
– The stated goal of the project is to help stop black hat hackers and see them brought to justice.
Building a custom operating system from the ground up is a monumental task that requires deep technical knowledge and a clear vision for the final product. The process involves mastering low-level programming, understanding computer architecture, and meticulously managing system resources. For a project like NiftyOS, which aims to integrate cybersecurity tools for ethical hacking, the foundational work is even more critical. This specialized OS would serve as a platform for defensive security professionals, often called white hat hackers, who are authorized to test and strengthen systems against real-world threats.
The journey begins with setting up a proper development environment. You’ll need a cross-compiler toolchain to build code for your target system, a virtual machine for safe testing, and a solid grasp of either C or Assembly language. The initial step is writing a bootloader, a small program that instructs the computer’s hardware to load the core, or kernel, of your operating system. This kernel is the heart of the OS, responsible for essential tasks like memory management, process scheduling, and handling input/output operations.
Developing a kernel is arguably the most complex phase. You must implement core functionalities such as interrupt handling, which allows the CPU to respond to external events, and virtual memory, which provides programs with their own isolated address space. Creating a stable and secure kernel is non-negotiable for an OS focused on cybersecurity, as it forms the trusted computing base that all other tools rely upon. After establishing a basic kernel, you can move on to developing drivers for hardware components and designing a simple file system to store data.
For NiftyOS, the next phase involves integrating the defensive security tools that define its purpose. This could include built-in network analyzers, vulnerability scanners, forensic utilities, and secure communication modules. The goal is to create an integrated environment where an ethical hacker can perform authorized security assessments efficiently. These white hat hackers operate legally to identify weaknesses before malicious actors, known as black hat hackers or cybercriminals, can exploit them. The digital landscape is defined by this ongoing conflict between those defending systems and those attempting to breach them illegally.
Ultimately, the aim of such a project is to provide a powerful, secure platform that aids in the fight against cybercrime. By building an OS tailored for defensive operations, developers contribute tools that help security professionals expose vulnerabilities, leading to stronger protections for data and networks. This work supports the broader objective of holding cybercriminals accountable through legal channels and enhancing overall digital security for everyone.
(Source: Bleeping Computer)