Copilotfree, in-browser
Ask me anything about your lessons or your code.
“What is a port?” · “Why is my code erroring?”
Ask me anything about your lessons or your code.
“What is a port?” · “Why is my code erroring?”
Recon is the first move against any target: what it is, passive versus active, the loop from live hosts to service versions, and why authorization bounds every packet.
Recon Methodology and Attack Surface
Recon is the first move against any target: what it is, passive versus active, the loop from live hosts to service versions, and why authorization bounds every packet.
Host Discovery
Turn a subnet full of empty addresses into the short list of machines that answer, and learn why a silent host is not a dead one.
Port Scanning Deep Dive
SYN, connect, or UDP, and what open, closed, and filtered really mean, read straight off the packet that comes back.
Service and Version Detection
An open port names a door. The version behind it is the lead worth acting on.
Subdomain and Content Enumeration
One domain hides dozens of names nobody linked. Find them through DNS brute force, certificate logs, and the Host header.