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DNS Queries over HTTPS (DoH) (RFC8484)

IP.com Disclosure Number: IPCOM000255909D
Original Publication Date: 2018-Oct-01
Included in the Prior Art Database: 2019-Feb-15
Document File: 21 page(s) / 33K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

P. Hoffman: AUTHOR [+1]

Related Documents

10.17487/RFC8484: DOI

Abstract

This document defines a protocol for sending DNS queries and getting DNS responses over HTTPS. Each DNS query-response pair is mapped into an HTTP exchange.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 8% of the total text.

Internet Engineering Task Force (IETF) P. Hoffman Request for Comments: 8484 ICANN Category: Standards Track P. McManus ISSN: 2070-1721 Mozilla October 2018

DNS Queries over HTTPS (DoH)

Abstract

This document defines a protocol for sending DNS queries and getting DNS responses over HTTPS. Each DNS query-response pair is mapped into an HTTP exchange.

Status of This Memo

This is an Internet Standards Track document.

This document is a product of the Internet Engineering Task Force (IETF). It represents the consensus of the IETF community. It has received public review and has been approved for publication by the Internet Engineering Steering Group (IESG). Further information on Internet Standards is available in Section 2 of RFC 7841.

Information about the current status of this document, any errata, and how to provide feedback on it may be obtained at https://www.rfc-editor.org/info/rfc8484.

Copyright Notice

Copyright (c) 2018 IETF Trust and the persons identified as the document authors. All rights reserved.

This document is subject to BCP 78 and the IETF Trust’s Legal Provisions Relating to IETF Documents (https://trustee.ietf.org/license-info) in effect on the date of publication of this document. Please review these documents carefully, as they describe your rights and restrictions with respect to this document. Code Components extracted from this document must include Simplified BSD License text as described in Section 4.e of the Trust Legal Provisions and are provided without warranty as described in the Simplified BSD License.

Hoffman & McManus Standards Track [Page 1]

RFC 8484 DNS Queries over HTTPS (DoH) October 2018

Table of Contents

1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3 2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 3 3. Selection of DoH Server . . . . . . . . . . . . . . . . . . . 4 4. The HTTP Exchange . . . . . . . . . . . . . . . . . . . . . . 4 4.1. The HTTP Request . . . . . . . . . . . . . . . . . . . . 4 4.1.1. HTTP Request Examples . . . . . . . . . . . . . . . . 5 4.2. The HTTP Response . . . . . . . . . . . . . . . . . . . . 7 4.2.1. Handling DNS and HTTP Errors . . . . . . . . . . . . 7 4.2.2. HTTP Response Example . . . . . . . . . . . . . . . . 8 5. HTTP Integration . . . . . . . . . . . . . . . . . . . . . . 8 5.1. Cache Interaction . . . . . . . . . . . . . . . . . . . . 8 5.2. HTTP/2 . . . . . . . . . . . . . . . . . . . . . . . . . 10 5.3. Server Push . . . . . . . . . . . . . . . . . . . . . . . 10 5.4. Content Negotiation . . . . . . . . . . . . . . . . . . . 10 6. Definition of the "application/dns-message" Media Type . . . 10 7. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 11 7.1. Registration of the "application/dns-message" Media Type 11 8. Privacy Considerations . . . . . . . . . . . . . . . . . . . 12 8.1. On the Wire . . . . . . . . . . . . . . . . . . . . . . . 12 8.2. In the Server . . . . . . . . . . . . . . . . . . . . . . 12 9. Security Co...

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