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+---
+labels:
+- 'Stage-Alpha'
+- 'Type-S2SAuth'
+summary: S2S authentication using DANE
+...
+
+Introduction
+------------
+
+This module implements DANE as described in[Using DNS Security
+Extensions (DNSSEC) and DNS-based Authentication of Named Entities
+(DANE) as a Prooftype for XMPP Domain Name
+Associations](http://tools.ietf.org/html/draft-miller-xmpp-dnssec-prooftype).
+
+Dependencies
+------------
+
+This module requires a DNSSEC aware DNS resolver. Prosodys internal
+DNSmodule does not support DNSSEC. Therefore, to use this module,
+areplacement is needed, such as [this
+one](https://www.zash.se/luaunbound.html).
+
+More installation instructions can be found at [Prosody with
+DANE](https://www.zash.se/prosody-dane.html).
+
+Configuration
+-------------
+
+After [installing the
+module](https://prosody.im/doc/installing_modules), just add it to
+`modules_enabled`;
+
+    modules_enabled = {
+     ...
+     "s2s_auth_dane";
+    }
+
+DNS Setup
+---------
+
+In order for other services to verify your site using using this
+plugin,you need to publish TLSA records (and they need to have this
+plugin).Here's an example using "DANE-EE Cert SHA2-256" for a host
+namedxmpp.example.com serving the domain example.com.
+
+    $ORIGIN example.com.
+    ; Your standard SRV record
+    _xmpp-server._tcp.example.com IN SRV 0 0 5269 xmpp.example.com.
+    ; IPv4 and IPv6 addresses
+    xmpp.example.com. IN A 192.0.2.68
+    xmpp.example.com. IN AAAA 2001:0db8:0000:0000:4441:4e45:544c:5341
+
+    ; The DANE TLSA records.  These three are equivalent, you would use only one of them.
+    ; First, using symbolic names:
+    _5269._tcp.xmpp.example.com. 300 IN TLSA DANE-EE Cert SHA2-256 E3B0C44298FC1C149AFBF4C8996FB92427AE41E4649B934CA495991B7852B855
+    ; Using numbers:
+    _5269._tcp.xmpp.example.com. 300 IN TLSA 3 0 1 E3B0C44298FC1C149AFBF4C8996FB92427AE41E4649B934CA495991B7852B855
+    ; Raw binary format, should work even with very old DNS tools:
+    _5269._tcp.xmpp.example.com. 300 IN TYPE52 \# 35 030001E3B0C44298FC1C149AFBF4C8996FB92427AE41E4649B934CA495991B7852B855
+
+[List of DNSSEC and DANE
+tools](http://www.internetsociety.org/deploy360/dnssec/tools/)
+
+Further reading
+---------------
+
+-   [DANE TLSA implementation and operational
+    guidance](http://tools.ietf.org/html/draft-ietf-dane-ops)
+
+Compatibility
+-------------
+
+Requires 0.9 or above.