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annotate xml/ru/docs/mail/ngx_mail_proxy_module.xml @ 641:ca72f350f6f0

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mail: - Documented the "imap_auth" directive. - Replaced "authorization" with "authentication". - Changed PLAIN SASL mechanism references to RFC 4616.
author Ruslan Ermilov <ru@nginx.com>
date Thu, 16 Aug 2012 07:19:40 +0000
parents 179336bb5c03
children 95c3c3bbf1ce
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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) 2006, 2007 Anton Yuzhaninov
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5 Copyright (C) Nginx, Inc.
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6 -->
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7
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8 <!DOCTYPE module SYSTEM "../../../../dtd/module.dtd">
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9
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10 <module name="Модуль ngx_mail_proxy_module"
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11 link="/ru/docs/mail/ngx_mail_proxy_module.html"
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12 lang="ru"
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13 rev="1">
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14
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15 <section id="directives" name="Директивы">
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16
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17 <!--
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18 <directive name="proxy">
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19 <syntax><literal>on</literal> | <literal>off</literal></syntax>
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20 <default>off</default>
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21 <context>mail</context>
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22 <context>server</context>
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23
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24 <para>
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25 В текущей версии нигде не проверяется.
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26 </para>
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27
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28 </directive>
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29 -->
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31
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32 <directive name="proxy_buffer">
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33 <syntax><value>размер</value></syntax>
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34 <default>4k|8k</default>
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35 <context>mail</context>
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36 <context>server</context>
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37
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38 <para>
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39 Задаёт размер буфера, используемого при проксировании.
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40 По умолчанию размер одного буфера равен размеру страницы.
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41 В зависимости от платформы это или 4K, или 8K.
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42 </para>
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43
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44 </directive>
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45
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46
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47 <directive name="proxy_pass_error_message">
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48 <syntax><literal>on</literal> | <literal>off</literal></syntax>
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49 <default>off</default>
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50 <context>mail</context>
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51 <context>server</context>
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52
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53 <para>
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54 Определяет, передавать ли клиенту сообщение об ошибке,
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55 полученное при аутентификации на бэкенде.
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56 </para>
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57
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58 <para>
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59 Обычно, если аутентификация в nginx прошла успешно,
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60 бэкенд не может вернуть ошибку, и если она всё же есть,
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61 значит есть какая-то ошибка внутри системы.
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62 В таких случаях сообщение бэкенда может содержать информацию,
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63 которую нельзя показывать клиенту.
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64 Однако для некоторых POP3-серверов ошибка в ответ на правильный пароль
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65 является штатным поведением.
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66 Например, CommuniGatePro извещает пользователя о
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67 <link url="http://www.stalker.com/CommuniGatePro/Alerts.html#Quota">переполнении
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68 ящика</link> или других событиях, периодически выдавая
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69 <link url="http://www.stalker.com/CommuniGatePro/POP.html#Alerts">ошибку
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70 аутентификации</link>.
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71 В этом случае директиву стоит включить.
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72 </para>
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73
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74 </directive>
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75
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77 <directive name="proxy_timeout">
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78 <syntax><value>время</value></syntax>
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79 <default>24h</default>
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80 <context>mail</context>
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81 <context>server</context>
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82
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83 <para>
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84 Задаёт таймаут, который используется после начала проксирования на бэкенд.
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85 </para>
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86
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87 </directive>
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88
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89
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90 <directive name="xclient">
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91 <syntax><literal>on</literal> | <literal>off</literal></syntax>
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92 <default>on</default>
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93 <context>mail</context>
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94 <context>server</context>
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95
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96 <para>
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97 Разрешает или запрещает передачу команды <literal>XCLIENT</literal>
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98 при подключении к SMTP-бэкенду.
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99 Для работы команды <literal>XCLIENT</literal> необходим Postfix с
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100 <link url="http://citrin.ru/nginx:xclient-login-patch">патчем</link>,
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101 который добавляет параметр <literal>LOGIN</literal>.
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102 Если не использовать <literal>XCLIENT</literal>, то MTA не сможет писать в лог
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103 <literal>IP</literal>/<literal>HELO</literal>/<literal>LOGIN</literal>
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104 клиента и применять различные ограничения на основе этих данных.
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105 </para>
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106
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107 <para>
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108 Если <literal>xclient</literal> включено,
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109 то при подключении к бэкенду nginx сначала передаёт
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110 <example>
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111 EHLO server_name
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112 </example>
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113 потом
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114 <example>
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115 XCLIENT PROTO=ESMTP HELO=client_hello ADDR=192.168.1.1 LOGIN=good_user NAME=[UNAVAILABLE]
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116 </example>
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117 Если клиент при подключении к nginx передал <literal>EHLO</literal>, то в
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118 команде <literal>XCLIENT</literal> передаётся <literal>PROTO=ESMTP</literal>.
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119 В противном случае передаётся <literal>PROTO=SMTP</literal>.
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120 В параметре <literal>ADDR</literal> указывается IP-адрес клиента,
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121 а поскольку nginx не обращается к DNS для получения имени хоста,
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122 то указывается <literal>NAME=[UNAVAILABLE]</literal>.
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123 </para>
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124
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125 <para>
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126 Если же <literal>xclient</literal> выключено,
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127 то при подключении к бэкенду nginx передаёт
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128 <literal>EHLO</literal>, если его передал клиент,
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129 и <literal>HELO</literal> в остальных случаях.
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130 </para>
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131
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132 </directive>
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133
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134 </section>
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135
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136 </module>