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?”
Probing a host's ports to learn which ones have something listening. It is usually the first useful thing done to a target, because you cannot attack a service you do not know exists.