Mercurial > hg > nginx-site
annotate xml/en/docs/stream/ngx_stream_mqtt_filter_module.xml @ 2964:23eedf89fd5d
Updated QUIC documentation after QUIC code merge.
- removed http3_max_concurrent_pushes, http3_push
http3_push_preload, quic_mtu
- updated apperared-in version
- update of quic.xml, adding Rus translation
author | Yaroslav Zhuravlev <yar@nginx.com> |
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date | Tue, 23 May 2023 16:44:47 +0100 |
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children | 6e094f915896 |
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1 <?xml version="1.0"?> |
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2 |
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3 <!-- |
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4 Copyright (C) Nginx, Inc. |
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5 --> |
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6 |
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7 <!DOCTYPE module SYSTEM "../../../../dtd/module.dtd"> |
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8 |
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9 <module name="Module ngx_stream_mqtt_filter_module" |
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10 link="/en/docs/http/ngx_stream_mqtt_filter_module.html" |
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11 lang="en" |
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12 rev="1"> |
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13 |
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14 <section id="summary"> |
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15 |
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16 <para> |
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17 The <literal>ngx_stream_mqtt_filter_module</literal> module (1.23.4) provides |
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18 support for Message Queuing Telemetry Transport protocol (MQTT) versions |
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19 <link url="https://docs.oasis-open.org/mqtt/mqtt/v3.1.1/mqtt-v3.1.1.html">3.1.1</link> |
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20 and |
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21 <link url="https://docs.oasis-open.org/mqtt/mqtt/v5.0/mqtt-v5.0.html">5.0</link>. |
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22 </para> |
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23 |
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24 <para> |
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25 <note> |
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26 This module is available as part of our |
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27 <commercial_version>commercial subscription</commercial_version>. |
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28 </note> |
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29 </para> |
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30 |
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31 </section> |
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32 |
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33 |
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34 <section id="example" name="Example Configuration"> |
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35 |
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36 <para> |
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37 <example> |
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38 listen 127.0.0.1:18883; |
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39 proxy_pass backend; |
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40 proxy_buffer_size 16k; |
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41 |
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42 mqtt on; |
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43 mqtt_set_connect clientid "$client"; |
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44 mqtt_set_connect username "$name"; |
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45 </example> |
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46 </para> |
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47 |
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48 </section> |
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49 |
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50 |
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51 <section id="directives" name="Directives"> |
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52 |
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53 <directive name="mqtt"> |
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54 <syntax><literal>on</literal> | <literal>off</literal></syntax> |
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55 <default>off</default> |
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56 <context>stream</context> |
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57 <context>server</context> |
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58 |
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59 <para> |
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60 Enables the MQTT protocol for the given virtual server. |
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61 </para> |
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62 |
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63 </directive> |
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64 |
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65 <directive name="mqtt_rewrite_buffer_size"> |
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66 <syntax><value>size</value></syntax> |
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67 <default>4k|8k</default> |
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68 <context>server</context> |
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69 |
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70 <para> |
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71 Sets the <value>size</value> of the buffer |
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72 used for writing a modified message. |
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73 By default, the buffer size is equal to one memory page. |
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74 This is either 4K or 8K, depending on a platform. |
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75 It can be made smaller, however. |
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76 </para> |
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77 |
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78 </directive> |
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79 |
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80 <directive name="mqtt_set_connect"> |
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81 <syntax><literal>field</literal> <value>value</value></syntax> |
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82 <default/> |
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83 <context>server</context> |
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84 |
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85 <para> |
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86 Sets the message <literal>field</literal> |
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87 to the given <literal>value</literal> for CONNECT message. |
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88 The following fields are supported: |
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89 <literal>clientid</literal>, |
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90 <literal>username</literal>, and |
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91 <literal>password</literal>. |
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92 The value can contain text, variables, and their combination. |
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93 </para> |
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94 |
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95 <para> |
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96 Several <literal>mqtt_set_connect</literal> directives |
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97 can be specified on the same level: |
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98 <example> |
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99 mqtt_set_connect clientid "$client"; |
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100 mqtt_set_connect username "$name"; |
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101 </example> |
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102 </para> |
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103 |
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104 </directive> |
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105 |
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106 </section> |
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107 |
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108 </module> |