RFC 2817 · PROPOSED STANDARD · 2000
WED · 29 JUL 2026
Upgrading to TLS Within HTTP/1.1
Overview
RFC 2817, “Upgrading to TLS Within HTTP/1.1”, is a Proposed Standard document published in May 2000 by R. Khare, S. Lawrence. It updates RFC 2616. It has since been updated by RFC 7230, RFC 7231. The canonical text is published by the RFC Editor.
Abstract
This memo explains how to use the Upgrade mechanism in HTTP/1.1 to initiate Transport Layer Security (TLS) over an existing TCP connection. [STANDARDS-TRACK]
What “Proposed Standard” means
An entry-level standards-track specification: stable, peer-reviewed and a solid basis for implementation, though it may still evolve before becoming an Internet Standard.
Read this RFC
The canonical text of RFC 2817 is hosted at rfc-editor.org. Available in TXT,HTML.
Relationships to other RFCs
Other RFCs from 2000
- RFC 2816 A Framework for Integrated Services Over Shared and Switched IEEE 802 LAN Technologies
- RFC 2818 HTTP Over TLS
- RFC 2819 Remote Network Monitoring Management Information Base
- RFC 2815 Integrated Service Mappings on IEEE 802 Networks
- RFC 2820 Access Control Requirements for LDAP
- RFC 2814 SBM : A Protocol for RSVP-based Admission Control over IEEE 802-style networks
- RFC 2813 Internet Relay Chat: Server Protocol
- RFC 2812 Internet Relay Chat: Client Protocol