How can my client work through a firewall/proxy server?

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What is a socket connection?

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Is there any advantage to handling the signal, rather than just ignoring it and checking for the EPIPE error? Are there any useful parameters passed to the signal catching function?

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How do Sockets Work?

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Can a socket have multiple ports?

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How do I get the port number for a given service?

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How often should I re-transmit un-acknowleged messages?

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of the socket? Does doing a connect() call affect the receive behaviour?

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Is a socket a file?

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When should I use UDP instead of TCP?

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What is the difference between close() and shutdown()?

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Are unix sockets faster than tcp?

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