{
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  "docId": "RFC8633",
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    "abstract": "The Network Time Protocol (NTP) is one of the oldest protocols on the Internet and has been widely used since its initial publication. This document is a collection of best practices for the general operation of NTP servers and clients on the Internet. It includes recommendations for the stable, accurate, and secure operation of NTP infrastructure. This document is targeted at NTP version 4 as described in RFC 5905.",
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    "authors": [
      {
        "name": "Denis Reilly"
      },
      {
        "name": "Harlan Stenn"
      },
      {
        "name": "Dieter Sibold"
      }
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      "confidence": "high",
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      "originalValue": null,
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      "updated": "2026-10-21T16:58:09.534Z",
      "version": "extractDocs.js@commit:2c1e5418e9d0"
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    "docId": "RFC8633",
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      "originalValue": null,
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      "sourceUrl": "https://www.rfc-editor.org/info/rfc8633/",
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    "docLabel": "IETF RFC 8633",
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      "originalValue": null,
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      "sourceUrl": "https://www.rfc-editor.org/info/rfc8633/",
      "updated": "2026-10-21T16:58:09.534Z",
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    "docNumber": "8633",
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      "confidence": "high",
      "note": "From the RFC index entry (rfc-index.xml <doc-id>)",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc8633/",
      "updated": "2026-10-21T16:58:09.534Z",
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    "docTitle": "Network Time Protocol Best Current Practices",
    "docTitle$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML title",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc8633/",
      "updated": "2026-10-21T16:58:09.534Z",
      "version": "extractDocs.js@commit:2c1e5418e9d0"
    },
    "docType": "Best Practice",
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      "confidence": "high",
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      "originalValue": null,
      "source": "parsed",
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      "updated": "2026-10-21T16:58:09.534Z",
      "version": "extractDocs.js@commit:2c1e5418e9d0"
    },
    "doi": "10.17487/RFC8633",
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      "confidence": "high",
      "note": "Parsed from RFC index XML doi",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc8633/",
      "updated": "2026-10-21T16:58:09.534Z",
      "version": "extractDocs.js@commit:2c1e5418e9d0"
    },
    "href": "https://doi.org/10.17487/RFC8633",
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      "confidence": "high",
      "note": "Derived from DOI (https://doi.org/<doi>)",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc8633/",
      "updated": "2026-10-21T16:58:09.534Z",
      "version": "extractDocs.js@commit:2c1e5418e9d0"
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    "keywords": [
      "NTP"
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      "confidence": "high",
      "note": "Parsed from RFC index XML keywords",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc8633/",
      "updated": "2026-10-21T16:58:09.534Z",
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    "pages$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML page-count",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc8633/",
      "updated": "2026-10-21T16:58:09.534Z",
      "version": "extractDocs.js@commit:2c1e5418e9d0"
    },
    "publicationDate": "2019-07-01",
    "publicationDate$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML date",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc8633/",
      "updated": "2026-10-21T16:58:09.534Z",
      "version": "extractDocs.js@commit:2c1e5418e9d0"
    },
    "publisher": "IETF",
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      "confidence": "high",
      "note": "Static: provider",
      "originalValue": null,
      "source": "parsed",
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      "updated": "2026-10-21T16:58:09.534Z",
      "version": "extractDocs.js@commit:2c1e5418e9d0"
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      "bibliographic": [
        "10.1145-2935634.2935637",
        "IETF.draft-ietf-ntp-mode-6-cmds-06",
        "IETF.draft-ietf-ntp-data-minimization-04",
        "10.1145-2663716.2663717",
        "10.14722-ndss.2014.23233",
        "10.14722-ndss.2016.23090",
        "IETF.draft-ietf-ntp-using-nts-for-ntp-20",
        "RFC1305",
        "RFC5906",
        "RFC6151",
        "RFC7094",
        "RFC7384",
        "RFC8573",
        "orphan/RFC8633/h:9e7dc54e",
        "orphan/RFC8633/h:a7786006",
        "orphan/RFC8633/h:73cb3ead",
        "orphan/RFC8633/h:7105b4b4",
        "orphan/RFC8633/h:6ef3920d",
        "orphan/RFC8633/h:dff824c3",
        "orphan/RFC8633/h:8ff391ba",
        "orphan/RFC8633/h:6ec5694b",
        "orphan/RFC8633/h:10d92b06",
        "orphan/RFC8633/h:2e560aad",
        "orphan/RFC8633/h:ad88bf97",
        "orphan/RFC8633/h:41324d6e",
        "orphan/RFC8633/h:aae3c20d",
        "orphan/RFC8633/h:7c036af8",
        "orphan/RFC8633/h:1cdd5215"
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        "note": "Parsed from RFC HTML references/informative sections",
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        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc8633/",
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        "version": "extractDocs.js@commit:2c1e5418e9d0"
      },
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        "RFC2827",
        "RFC4085",
        "RFC4786",
        "RFC5905",
        "RFC8174"
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        "confidence": "high",
        "note": "Parsed from RFC HTML normative references sections",
        "originalValue": [],
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc8633/",
        "updated": "2026-10-21T16:58:09.534Z",
        "version": "extractDocs.js@commit:2c1e5418e9d0"
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    "resolvedHref": "https://www.rfc-editor.org/info/rfc8633/",
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      "confidence": "high",
      "note": "Final URL resolved via URL redirect verification",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc8633/",
      "updated": "2026-10-21T16:58:09.534Z",
      "version": "extractDocs.js@commit:2c1e5418e9d0"
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    "status": {
      "active": true,
      "active$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc8633/",
        "updated": "2026-10-21T16:58:09.534Z",
        "version": "extractDocs.js@commit:2c1e5418e9d0"
      },
      "errataExist": false,
      "errataExist$meta": {
        "confidence": "high",
        "note": "Derived from presence of errata links on RFC/Datatracker pages",
        "originalValue": null,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc8633/",
        "updated": "2026-10-21T16:58:09.534Z",
        "version": "extractDocs.js@commit:2c1e5418e9d0"
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      "latestVersion": true,
      "latestVersion$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc8633/",
        "updated": "2026-10-21T16:58:09.534Z",
        "version": "extractDocs.js@commit:2c1e5418e9d0"
      },
      "statusNote": "Best Current Practice",
      "statusNote$meta": {
        "confidence": "high",
        "note": "Mapped from Datatracker doc.json std_level",
        "originalValue": null,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc8633/",
        "updated": "2026-10-21T16:58:09.534Z",
        "version": "extractDocs.js@commit:2c1e5418e9d0"
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      "superseded": false,
      "superseded$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc8633/",
        "updated": "2026-10-21T16:58:09.534Z",
        "version": "extractDocs.js@commit:2c1e5418e9d0"
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}