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mod_s2s_auth_posh/README.markdown

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mod_http_oauth2: Use validated redirect URI when returning errors to client Parsing it from the query again without the validation done by get_redirect_uri() may lead to open redirect issues.
author Kim Alvefur <zash@zash.se>
date Thu, 18 May 2023 14:17:58 +0200
parent 3225:517c7f0333e3
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---
labels:
- 'Type-S2SAuth'
---

Introduction
============

[PKIX over Secure HTTP (POSH)][rfc7711] describes a method of
securely delegating a domain to a hosting provider, without that hosting
provider needing keys and certificates covering the hosted domain.

# Validating

This module performs POSH validation of other servers. It is *not*
needed to delegate your own domain.

# Delegation

You can generate the JSON delegation file from a certificate by running
`prosodyctl mod_s2s_auth_posh /path/to/example.crt`. This file needs to
be served at `https://example.com/.well-known/posh/xmpp-server.json`.