ElnurBDa is the name of this site (and handle on socials). The person behind it is Elnur Badalov—a technologist who works in tech, cares about cybersecurity, Linux, web development, and related engineering, and publishes notes, guides, and CTF-style write-ups here so useful work isn’t locked in private docs.
For a longer bio, stack, and what the site is for, see About.