Mercurial > hg > nginx-site
annotate xml/ru/docs/stream/stream_processing.xml @ 2903:44f3b52c0679
Documented the $proxy_protocol_tlv_ variable.
author | Yaroslav Zhuravlev <yar@nginx.com> |
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date | Wed, 19 Oct 2022 12:33:55 +0100 |
parents | 4959250ba429 |
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1 <!-- |
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2 Copyright (C) Nginx, Inc. |
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3 --> |
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4 |
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5 <!DOCTYPE article SYSTEM "../../../../dtd/article.dtd"> |
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6 |
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7 <article name="Как nginx обрабатывает TCP/UDP-сессии" |
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8 link="/ru/docs/stream/stream_processing.html" |
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9 lang="ru" |
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10 rev="4"> |
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11 |
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12 <section> |
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13 |
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14 <para> |
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15 Обработка клиентской TCP/UDP-сессии происходит |
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16 последовательными <b>фазами</b>: |
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17 |
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18 <list type="tag"> |
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19 |
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20 <tag-name id="postaccept_phase"> |
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21 <literal>Post-accept</literal> |
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22 </tag-name> |
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23 <tag-desc> |
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24 Первая фаза после принятия клиентского соединения. |
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25 В этой фазе выполняется модуль |
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26 <link doc="ngx_stream_realip_module.xml">ngx_stream_realip_module</link>. |
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27 </tag-desc> |
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28 |
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29 <tag-name id="preaccess_phase"> |
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30 <literal>Pre-access</literal> |
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31 </tag-name> |
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32 <tag-desc> |
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33 Предварительная проверка доступа. |
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34 В этой фазе выполняются модули |
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35 <link doc="ngx_stream_limit_conn_module.xml">ngx_stream_limit_conn_module</link> |
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36 и |
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37 <link doc="ngx_stream_set_module.xml">ngx_stream_set_module</link>. |
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38 </tag-desc> |
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39 |
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40 <tag-name id="access_phase"> |
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41 <literal>Access</literal> |
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42 </tag-name> |
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43 <tag-desc> |
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44 Ограничение доступа для клиента перед обработкой данных. |
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45 В этой фазе |
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46 выполняется модуль |
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47 <link doc="ngx_stream_access_module.xml">ngx_stream_access_module</link>, |
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48 при использовании <link doc="../njs/index.xml">njs</link> |
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49 выполняется |
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50 директива <link doc="ngx_stream_js_module.xml" id="js_access"/>. |
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51 |
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52 </tag-desc> |
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53 |
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54 <tag-name id="ssl_phase"> |
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55 <literal>SSL</literal> |
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56 </tag-name> |
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57 <tag-desc> |
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58 |
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59 Терминирование TLS/SSL. |
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60 В этой фазе выполняется модуль |
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61 <link doc="ngx_stream_ssl_module.xml">ngx_stream_ssl_module</link>. |
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62 </tag-desc> |
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63 |
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64 <tag-name id="preread_phase"> |
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65 <literal>Preread</literal> |
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66 </tag-name> |
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67 <tag-desc> |
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68 Чтение первых байт данных в |
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69 <link doc="ngx_stream_core_module.xml" id="preread_buffer_size">буфер |
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70 предварительного чтения</link> для анализа, |
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71 например модулем |
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72 <link doc="ngx_stream_ssl_preread_module.xml">ngx_stream_ssl_preread_module</link>, |
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73 перед их обработкой. |
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74 При использовании <link doc="../njs/index.xml">njs</link> |
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75 в этой фазе выполняется |
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76 директива <link doc="ngx_stream_js_module.xml" id="js_preread"/>. |
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77 </tag-desc> |
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78 |
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79 <tag-name id="content_phase"> |
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80 <literal>Content</literal> |
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81 </tag-name> |
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82 <tag-desc> |
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83 Обязательная фаза, в которой происходит обработка данных, как правило |
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84 <link doc="ngx_stream_proxy_module.xml">проксирование</link> на |
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85 <link doc="ngx_stream_upstream_module.xml">группу серверов</link> |
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86 или <link doc="ngx_stream_return_module.xml">отправка</link> клиенту |
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87 заданного значения. |
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88 При использовании <link doc="../njs/index.xml">njs</link> |
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89 в этой фазе выполняется |
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90 директива <link doc="ngx_stream_js_module.xml" id="js_filter"/>. |
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91 </tag-desc> |
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92 |
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93 <tag-name id="log_phase"> |
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94 <literal>Log</literal> |
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95 </tag-name> |
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96 <tag-desc> |
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97 Заключительная фаза, |
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98 в которой записывается результат обработки клиентской сессии. |
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99 В этой фазе выполняется модуль |
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100 <link doc="ngx_stream_log_module.xml">ngx_stream_log_module</link>. |
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101 </tag-desc> |
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102 </list> |
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103 |
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104 </para> |
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105 |
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106 </section> |
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107 |
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108 </article> |