Passive DNS - Common Output Format
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This document describes the output format used between Passive DNS query interface. The output format description
 includes also a common meaning per Passive DNS system.

How to Contribute to the Document
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You can make pull request to the xml document. We are looking for comments from passive DNS developers in order to improve the document.

IETF Internet-Draft
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- [Version 5 published as Internet-Draft](https://datatracker.ietf.org/doc/draft-dulaunoy-dnsop-passive-dns-cof/) - February 10, 2019