Network Attached Storage (NAS) provides data access to a heterogeneous group of clients over computer networks. As hard drive prices continue to drop, NAS devices have made their way into the homes of the masses. Leading brands in the SMB and home NAS market, such as Synology, have their products range in price from as low as $300 to $700 for the high models. But if you are a Raspberry Pi player, you can build a very nice home NAS and streaming service for only about half the cost of the lowest price.

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About IP packet header checksum algorithm, simply put, it is 16-bit ones' complement of the ones' complement sum of all 16-bit words in the header. However, not many sources show exactly how this is done.

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The problem of Endianness is essentially a question about how computers store large numbers.

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