c - How does a server distinguish multiple connections from a single client? -

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i doing c programming on client server socket examples. lets server listens on port80, client on port 4321. tuple used distinguish between multiple connections. how server distinguish between connections same client? mean there multiple apps client accessing same server on same port.

can please explain?

thanks

two clients cannot use same port. if 1 client uses port 4321 other has use different port.


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