Mercurial > prosody-modules
view mod_s2s_auth_dane/README.markdown @ 5170:4d6af8950016
mod_muc_moderation: Derive role from reserved nickname if occupant
When using a different client to moderate than the one used to
participate in the chat, e.g. a command line tool like clix, there's no
occupant and no role to use in the permission check. Previously the
default role based on affiliation was used. Now if you are present in
the room using your reserved nick, the role you have there is used in
the permission check instead of the default affiliation-derived role.
| author | Kim Alvefur <zash@zash.se> |
|---|---|
| date | Sun, 19 Feb 2023 18:17:37 +0100 |
| parents | 83afe4078e6e |
| children |
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--- labels: - Stage-Broken - 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 DNS module does not support DNSSEC. Therefore, to use this module, a replacement is needed, such as [this one](https://www.zash.se/luaunbound.html). LuaSec 0.5 or later is also required. Configuration ============= After [installing the module][doc:installing\_modules], just add it to `modules_enabled`; modules_enabled = { ... "s2s_auth_dane"; } DANE Uses --------- By default, only DANE uses are enabled. dane_uses = { "DANE-EE", "DANE-TA" } Use flag Description ----------- ------------------------------------------------------------------------------------------------------- `DANE-EE` Most simple use, usually a fingerprint of the full certificate or public key used the service `DANE-TA` Fingerprint of a certificate or public key that has been used to issue the service certificate `PKIX-EE` Like `DANE-EE` but the certificate must also pass normal PKIX trust checks (ie standard certificates) `PKIX-TA` Like `DANE-TA` but must also pass normal PKIX trust checks (ie standard certificates) 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 named `xmpp.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. _5269._tcp.xmpp.example.com. 300 IN TLSA 3 0 1 E3B0C44298FC1C149AFBF4C8996FB92427AE41E4649B934CA495991B7852B855 ; If your zone file tooling does not support TLSA records, you can try the raw binary format: _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 Operational Guidance][rfc7671] # Compatibility version status --------- ------------ trunk broken[^1] 0.12 broken 0.11 works 0.10 works 0.9 works **Broken** since [trunk revision 756b8821007a](https://hg.prosody.im/trunk/rev/756b8821007a). # Known issues - A race condition between the DANE lookup and completion of the TLS handshake may cause a crash. This does not happen in **trunk** thanks to better async support. [^1]: since [756b8821007a](https://hg.prosody.im/trunk/rev/756b8821007a)