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DNS on Windows 2000, Second Edition by Cricket Liu, Matt Larson

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Name

Domain name — (From RFC 1035, page 10)

Synopsis

Domain names in messages are expressed in terms of a sequence of labels. Each label is represented as a one octet length field followed by that number of octets. Since every domain name ends with the null label of the root, a domain name is terminated by a length byte of zero. The high order two bits of every length octet must be zero, and the remaining six bits of the length field limit the label to 63 octets or less.

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