The NSD reference article from the English Wikipedia on 24-Jul-2004
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NSD

Helping orphans the way you would do it
In Internet computing, NSD (for "name server daemon") is a server program for the Domain Name System. It was developed by NLnet Labs of Amsterdam, from scratch as an authoritative name server (i.e., not supporting the recursive caching function). One of the Internet root nameservers was switched to NSD on February 19, 2003.

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