See Yourself the Way Hackers Do
How the Internet Works & How to Expose Your Own Weak Points Before Attackers Do
Before anyone attacks a system they quietly study it from the outside. Learn to do exactly that to your own systems — the internet explained as a postal system, then the whole passive-reconnaissance toolkit: whois, DNS, OSINT, theHarvester.
- IP, ports, DNS, packets — made simple
- Footprint your own domain
- Touch nothing that isn't yours
Read the first 10 pages free
By Jacob Francis (Joshi ji) · 2026
· English