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mod_s2s_auth_dane/README.md @ 6232:d72010642b31
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| author | Trần H. Trung <xmpp:trần.h.trung@trung.fun> |
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| date | Fri, 11 Apr 2025 23:19:21 +0700 |
| parent | 6221:f315edc39f3d |
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| 1803 | 1 --- |
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3 - Stage-Obsolete |
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4 - Type-S2SAuth |
| 1803 | 5 summary: S2S authentication using DANE |
| 6 ... | |
| 7 | |
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8 ::: {.alert .alert-warning} |
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9 This module no longer works with recent versions of Prosody. |
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10 |
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11 However, Prosody as of [13.0.0](//prosody.im/doc/release/13.0.0) ships with native support for [DANE](//prosody.im/doc/dnssec). |
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12 ::: |
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13 |
| 1803 | 14 Introduction |
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15 ============ |
| 1803 | 16 |
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17 This module implements DANE as described in [Using DNS Security |
| 1803 | 18 Extensions (DNSSEC) and DNS-based Authentication of Named Entities |
| 19 (DANE) as a Prooftype for XMPP Domain Name | |
| 20 Associations](http://tools.ietf.org/html/draft-miller-xmpp-dnssec-prooftype). | |
| 21 | |
| 22 Dependencies | |
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23 ============ |
| 1803 | 24 |
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25 This module requires a DNSSEC aware DNS resolver. Prosodys internal DNS |
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26 module does not support DNSSEC. Therefore, to use this module, a |
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27 replacement is needed, such as [this |
| 1803 | 28 one](https://www.zash.se/luaunbound.html). |
| 29 | |
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30 LuaSec 0.5 or later is also required. |
| 1803 | 31 |
| 32 Configuration | |
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33 ============= |
| 1803 | 34 |
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35 After [installing the module][doc:installing\_modules], just add it to |
| 1803 | 36 `modules_enabled`; |
| 37 | |
| 38 modules_enabled = { | |
| 39 ... | |
| 40 "s2s_auth_dane"; | |
| 41 } | |
| 42 | |
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43 DANE Uses |
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44 --------- |
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45 |
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46 By default, only DANE uses are enabled. |
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47 |
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48 dane_uses = { "DANE-EE", "DANE-TA" } |
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49 |
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50 Use flag Description |
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51 ----------- ------------------------------------------------------------------------------------------------------- |
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52 `DANE-EE` Most simple use, usually a fingerprint of the full certificate or public key used the service |
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53 `DANE-TA` Fingerprint of a certificate or public key that has been used to issue the service certificate |
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54 `PKIX-EE` Like `DANE-EE` but the certificate must also pass normal PKIX trust checks (ie standard certificates) |
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55 `PKIX-TA` Like `DANE-TA` but must also pass normal PKIX trust checks (ie standard certificates) |
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56 |
| 1803 | 57 DNS Setup |
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58 ========= |
| 1803 | 59 |
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60 In order for other services to verify your site using using this plugin, |
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61 you need to publish TLSA records (and they need to have this plugin). |
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62 Here's an example using `DANE-EE Cert SHA2-256` for a host named |
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63 `xmpp.example.com` serving the domain `example.com`. |
| 1803 | 64 |
| 65 $ORIGIN example.com. | |
| 66 ; Your standard SRV record | |
| 67 _xmpp-server._tcp.example.com IN SRV 0 0 5269 xmpp.example.com. | |
| 68 ; IPv4 and IPv6 addresses | |
| 69 xmpp.example.com. IN A 192.0.2.68 | |
| 70 xmpp.example.com. IN AAAA 2001:0db8:0000:0000:4441:4e45:544c:5341 | |
| 71 | |
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72 ; The DANE TLSA records. |
| 1803 | 73 _5269._tcp.xmpp.example.com. 300 IN TLSA 3 0 1 E3B0C44298FC1C149AFBF4C8996FB92427AE41E4649B934CA495991B7852B855 |
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74 |
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75 ; If your zone file tooling does not support TLSA records, you can try the raw binary format: |
| 1803 | 76 _5269._tcp.xmpp.example.com. 300 IN TYPE52 \# 35 030001E3B0C44298FC1C149AFBF4C8996FB92427AE41E4649B934CA495991B7852B855 |
| 77 | |
| 78 [List of DNSSEC and DANE | |
| 79 tools](http://www.internetsociety.org/deploy360/dnssec/tools/) | |
| 80 | |
| 81 Further reading | |
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82 =============== |
| 1803 | 83 |
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84 - [DANE Operational Guidance][rfc7671] |
| 1803 | 85 |
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86 # Compatibility |
| 1803 | 87 |
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88 version status |
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89 --------- ------------ |
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90 trunk broken[^1] |
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91 0.12 broken |
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92 0.11 works |
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93 0.10 works |
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94 0.9 works |
| 3990 | 95 |
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96 **Broken** since [trunk revision 756b8821007a](https://hg.prosody.im/trunk/rev/756b8821007a). |
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97 |
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98 # Known issues |
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99 |
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100 - A race condition between the DANE lookup and completion of the TLS |
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101 handshake may cause a crash. This does not happen in **trunk** |
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102 thanks to better async support. |
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103 |
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104 [^1]: since [756b8821007a](https://hg.prosody.im/trunk/rev/756b8821007a) |
