annotate mod_onions/README.markdown @ 4210:a0937b5cfdcb

mod_invites_page: Remove preauth URI button This button is incompatible with the majority of XMPP clients around, yet based on feedback from users, many are drawn to click it when they have any XMPP client installed already. In the case where the user already has software installed, we would prefer them to select it from the software list so they can follow the setup process suited to their specific client (we already track which software supports preauth URIs). If their client is not listed, they can still use the manual registration link instead.
author Matthew Wild <mwild1@gmail.com>
date Fri, 16 Oct 2020 11:03:38 +0100
parents 4d73a1a6ba68
children 36b5677b9648
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1 ---
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2 labels:
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3 - 'Stage-Alpha'
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4 summary: s2s to Tor hidden services
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5 ...
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7 Introduction
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8 ============
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9
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10 This plugin allows Prosody to connect to other servers that are running
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11 as a Tor hidden service. Running Prosody on a hidden service works
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12 without this module, this module is only necessary to allow Prosody to
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13 federate to hidden XMPP servers.
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14
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15 For general info about creating a hidden service, see
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16 https://www.torproject.org/docs/tor-hidden-service.html.en.
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18 Usage
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19 =====
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20
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21 This module depends on the bit32 Lua library.
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23 To create a hidden service that can federate with other hidden XMPP
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24 servers, first add a hidden serivce to Tor. It should listen on port
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25 5269 and optionally also on 5222 (if c2s connections to the hidden
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26 service should be allowed).
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27
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28 Use the hostname that Tor gives with a virtualhost:
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30 VirtualHost "555abcdefhijklmn.onion"
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31 modules_enabled = { "onions" };
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32
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33 Configuration
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34 =============
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36 Name Description Type Default value
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37 ---------------------- ----------------------------------------------------- --------- ---------------
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38 onions\_socks5\_host the host to connect to for Tor's SOCKS5 proxy string "127.0.0.1"
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39 onions\_socks5\_port the port to connect to for Tor's SOCKS5 proxy integer 9050
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40 onions\_only forbid all connection attempts to non-onion servers boolean false
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41 onions\_tor\_all pass all s2s connections through Tor boolean false
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42 onions\_map override the address for a host table {}
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43
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44 By setting `onions_map`, it is possible to override the address used to
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45 connect to a given host with the address of a hidden service. The
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46 configuration of `onions_map` works as follows:
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48 onions_map = {
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49 ["jabber.calyxinstitute.org"] = "ijeeynrc6x2uy5ob.onion";
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50 }
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51
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52 or, to also specify a port:
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54 onions_map = {
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55 ["jabber.calyxinstitute.org"] = { host = "ijeeynrc6x2uy5ob.onion", port = 5269 };
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56 }
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57
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58 Compatibility
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59 =============
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60
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61 ----- --------------
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62 0.8 Doesn't work
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63 0.9 Works
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64 ----- --------------
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66 Notes
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67 =====
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69 - `onions_tor_all` does not look up SRV records first. Therefore it
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70 will fail for many servers.
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71 - mod\_onions currently does not support connecting to `.onion`
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72 entries in SRV records.
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74 Security considerations
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75 =======================
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76
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77 - Running a hidden service on a server together with a normal server
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78 might expose the hidden service.
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79 - A hidden service that wants to remain hidden should either disallow
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80 s2s to non-hidden servers or pass all s2s traffic through Tor
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81 (setting either `onions_only` or `onions_tor_all`).