Yes, I was actually mistaken in assuming a server would use a port only once per IP for all connections, and not just once per client IP (and even farther, clie

Yes, I was actually mistaken in assuming a server would use a port only once per IP for all connections, and not just once per client IP (and even farther, client IP and client port combo). It makes much more sense, and in fact I'd been pondering that since I commented as how that could work in practice with servers that actually keep connections open but can handle a lot of requests wasn't obvious in my prior mental model. > Beej's guide is a popular intro, but I'd bet any text on network programming covers sockets. I highly suspect I knew this at some point, but forgot it over the past 15-20 years since it didn't have direct relevance to most of my projects since that time. :/