Python · Sockets & Networking

You're choosing a port for a custom server. Why avoid low numbers like 80 or 21, and what range is safe to grab?

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You need a network protocol that guarantees every byte arrives, in order, with no loss. Which socket type do you create, and what do you give up vs the alternative?

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What does this client snippet do wrong? ```python s = socket.create_connection( (ip, 50000)) s.send("hello") ```

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In a TCP receive loop, how do you detect that the peer closed the connection? ```python while data := conn.recv(1024): ... ```

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