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?”
The three messages TCP exchanges before any data moves: SYN, then SYN-ACK, then ACK. It is how both sides agree they can hear each other.