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Dnstable

Jul 20, 2023

Encoding format, library, and utilities for passive DNS data

dnstable implements an encoding format for passive DNS data. It consists of a C library, libdnstable, and several command line utilities for creating, querying, and merging dnstable data files.

It stores key-value records in Sorted String Table SSTable files and provides high-level interfaces for querying or iterating over the stored records. dnstable encodes individual records using a format tailored for efficiently storing passive DNS data and can quickly perform both “forward” and “inverse” searches.

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