Zero Calorie DNS is a domain name server for which the binary weighs in at 26K, that has no dependencies other than the minimal FreeBSD 6.0 installation.
The server responds to "name server" (NS), "start of authority" (SOA), "address record" (A), "reverse address" (PTR), and "mail exchanger" (MX) requests. The server is fairly fast because the feature set has been trimmed down to the bare minimum.
A few things are hard-coded so that a two minute setup is easy to accomplish. The hard-coding means that it may not be for everyone, however.
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