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annotate xml/en/docs/stream/ngx_stream_core_module.xml @ 1780:8df9ba4e56c6

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Documented 400 error in stream $status.
author Yaroslav Zhuravlev <yar@nginx.com>
date Tue, 13 Sep 2016 16:14:49 +0300
parents 1626f1bf164c
children 363249d888e1
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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_core_module"
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10 link="/en/docs/stream/ngx_stream_core_module.html"
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11 lang="en"
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12 rev="19">
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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_core_module</literal> module
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18 is available since version 1.9.0.
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19 This module is not built by default, it should be enabled with the
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20 <literal>--with-stream</literal>
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21 configuration parameter.
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22 </para>
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23
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24 </section>
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25
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26
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27 <section id="example" name="Example Configuration">
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28
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29 <para>
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30 <example>
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31 worker_processes auto;
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32
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33 error_log /var/log/nginx/error.log info;
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34
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35 events {
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36 worker_connections 1024;
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37 }
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38
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39 stream {
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40 upstream backend {
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41 hash $remote_addr consistent;
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42
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43 server backend1.example.com:12345 weight=5;
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44 server 127.0.0.1:12345 max_fails=3 fail_timeout=30s;
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45 server unix:/tmp/backend3;
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46 }
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47
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48 upstream dns {
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49 server 192.168.0.1:53535;
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50 server dns.example.com:53;
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51 }
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52
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53 server {
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54 listen 12345;
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55 proxy_connect_timeout 1s;
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56 proxy_timeout 3s;
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57 proxy_pass backend;
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58 }
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59
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60 server {
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61 listen 127.0.0.1:53 udp;
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62 proxy_responses 1;
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63 proxy_timeout 20s;
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64 proxy_pass dns;
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65 }
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66
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67 server {
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68 listen [::1]:12345;
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69 proxy_pass unix:/tmp/stream.socket;
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70 }
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71 }
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72 </example>
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73 </para>
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74
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75 </section>
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76
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77
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78 <section id="directives" name="Directives">
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79
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80 <directive name="listen">
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81 <syntax>
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82 <value>address</value>:<value>port</value>
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83 [<literal>ssl</literal>]
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84 [<literal>udp</literal>]
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85 [<literal>proxy_protocol</literal>]
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86 [<literal>backlog</literal>=<value>number</value>]
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87 [<literal>bind</literal>]
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88 [<literal>ipv6only</literal>=<literal>on</literal>|<literal>off</literal>]
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89 [<literal>reuseport</literal>]
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90 [<literal>so_keepalive</literal>=<literal>on</literal>|<literal>off</literal>|[<value>keepidle</value>]:[<value>keepintvl</value>]:[<value>keepcnt</value>]]</syntax>
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91 <default/>
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92 <context>server</context>
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93
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94 <para>
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95 Sets the <value>address</value> and <value>port</value> for the socket
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96 on which the server will accept connections.
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97 It is possible to specify just the port.
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98 The address can also be a hostname, for example:
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99 <example>
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100 listen 127.0.0.1:12345;
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101 listen *:12345;
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102 listen 12345; # same as *:12345
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103 listen localhost:12345;
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104 </example>
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105 IPv6 addresses are specified in square brackets:
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106 <example>
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107 listen [::1]:12345;
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108 listen [::]:12345;
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109 </example>
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110 UNIX-domain sockets are specified with the “<literal>unix:</literal>”
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111 prefix:
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112 <example>
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113 listen unix:/var/run/nginx.sock;
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114 </example>
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115
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116 </para>
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117
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118 <para>
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119 The <literal>ssl</literal> parameter allows specifying that all
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120 connections accepted on this port should work in SSL mode.
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121 </para>
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122
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123 <para id="udp">
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124 The <literal>udp</literal> parameter configures a listening socket
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125 for working with datagrams (1.9.13).
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126 </para>
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127
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128 <para id="proxy_protocol">
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129 The <literal>proxy_protocol</literal> parameter (1.11.4)
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130 allows specifying that all connections accepted on this port should use the
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131 <link url="http://www.haproxy.org/download/1.5/doc/proxy-protocol.txt">PROXY
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132 protocol</link>.
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133 </para>
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134
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135 <para>
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136 The <literal>listen</literal> directive
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137 can have several additional parameters specific to socket-related system calls.
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138 <list type="tag">
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139
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140 <tag-name>
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141 <literal>backlog</literal>=<value>number</value>
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142 </tag-name>
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143 <tag-desc>
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144 sets the <literal>backlog</literal> parameter in the
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145 <c-func>listen</c-func> call that limits
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146 the maximum length for the queue of pending connections (1.9.2).
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147 By default,
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148 <literal>backlog</literal> is set to -1 on FreeBSD, DragonFly BSD, and Mac OS X,
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149 and to 511 on other platforms.
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150 </tag-desc>
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151
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152 <tag-name>
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153 <literal>bind</literal>
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154 </tag-name>
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155 <tag-desc>
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156 this parameter instructs to make a separate <c-func>bind</c-func>
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157 call for a given address:port pair.
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158 The fact is that if there are several <literal>listen</literal> directives with
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159 the same port but different addresses, and one of the
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160 <literal>listen</literal> directives listens on all addresses
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161 for the given port (<literal>*:</literal><value>port</value>), nginx will
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162 <c-func>bind</c-func> only to <literal>*:</literal><value>port</value>.
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163 It should be noted that the <c-func>getsockname</c-func> system call will be
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164 made in this case to determine the address that accepted the connection.
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165 If the <literal>ipv6only</literal>
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166 or <literal>so_keepalive</literal> parameters
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167 are used then for a given
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168 <value>address</value>:<value>port</value> pair
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169 a separate <c-func>bind</c-func> call will always be made.
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170 </tag-desc>
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171
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172 <tag-name>
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173 <literal>ipv6only</literal>=<literal>on</literal>|<literal>off</literal>
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174 </tag-name>
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175 <tag-desc>
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176 this parameter determines
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177 (via the <c-def>IPV6_V6ONLY</c-def> socket option)
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178 whether an IPv6 socket listening on a wildcard address <literal>[::]</literal>
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179 will accept only IPv6 connections or both IPv6 and IPv4 connections.
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180 This parameter is turned on by default.
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181 It can only be set once on start.
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182 </tag-desc>
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183
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184 <tag-name id="reuseport">
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185 <literal>reuseport</literal>
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186 </tag-name>
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187 <tag-desc>
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188 this parameter (1.9.1) instructs to create an individual listening socket
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189 for each worker process
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190 (using the <c-def>SO_REUSEPORT</c-def> socket option), allowing a kernel
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191 to distribute incoming connections between worker processes.
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192 This currently works only on Linux 3.9+ and DragonFly BSD.
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193 <note>
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194 Inappropriate use of this option may have its security
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195 <link url="http://man7.org/linux/man-pages/man7/socket.7.html">implications</link>.
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196 </note>
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197 </tag-desc>
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198
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199 <tag-name>
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200 <literal>so_keepalive</literal>=<literal>on</literal>|<literal>off</literal>|[<value>keepidle</value>]:[<value>keepintvl</value>]:[<value>keepcnt</value>]
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201 </tag-name>
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202 <tag-desc>
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203 this parameter configures the “TCP keepalive” behavior
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204 for the listening socket.
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205 If this parameter is omitted then the operating system’s settings will be
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206 in effect for the socket.
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207 If it is set to the value “<literal>on</literal>”, the
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208 <c-def>SO_KEEPALIVE</c-def> option is turned on for the socket.
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209 If it is set to the value “<literal>off</literal>”, the
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210 <c-def>SO_KEEPALIVE</c-def> option is turned off for the socket.
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211 Some operating systems support setting of TCP keepalive parameters on
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212 a per-socket basis using the <c-def>TCP_KEEPIDLE</c-def>,
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213 <c-def>TCP_KEEPINTVL</c-def>, and <c-def>TCP_KEEPCNT</c-def> socket options.
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214 On such systems (currently, Linux 2.4+, NetBSD 5+, and
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215 FreeBSD 9.0-STABLE), they can be configured
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216 using the <value>keepidle</value>, <value>keepintvl</value>, and
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217 <value>keepcnt</value> parameters.
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218 One or two parameters may be omitted, in which case the system default setting
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219 for the corresponding socket option will be in effect.
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220 For example,
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221 <example>so_keepalive=30m::10</example>
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222 will set the idle timeout (<c-def>TCP_KEEPIDLE</c-def>) to 30 minutes,
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223 leave the probe interval (<c-def>TCP_KEEPINTVL</c-def>) at its system default,
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224 and set the probes count (<c-def>TCP_KEEPCNT</c-def>) to 10 probes.
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225 </tag-desc>
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226
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227 </list>
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228 </para>
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229
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230 <para>
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231 Different servers must listen on different
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232 <value>address</value>:<value>port</value> pairs.
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233 </para>
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234
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235 </directive>
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236
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237
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238 <directive name="resolver">
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239 <syntax>
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240 <value>address</value> ...
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241 [<literal>valid</literal>=<value>time</value>]
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242 [<literal>ipv6</literal>=<literal>on</literal>|<literal>off</literal>]</syntax>
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243 <default/>
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244 <context>stream</context>
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245 <context>server</context>
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246 <appeared-in>1.11.3</appeared-in>
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247
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248 <para>
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249 Configures name servers used to resolve names of upstream servers
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250 into addresses, for example:
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251 <example>
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252 resolver 127.0.0.1 [::1]:5353;
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253 </example>
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254 An address can be specified as a domain name or IP address,
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255 and an optional port.
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256 If port is not specified, the port 53 is used.
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257 Name servers are queried in a round-robin fashion.
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258 </para>
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259
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260 <para>
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261 By default, nginx will look up both IPv4 and IPv6 addresses while resolving.
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262 If looking up of IPv6 addresses is not desired,
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263 the <literal>ipv6=off</literal> parameter can be specified.
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264 </para>
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265
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266 <para>
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267 By default, nginx caches answers using the TTL value of a response.
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268 The optional <literal>valid</literal> parameter allows overriding it:
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269 <example>
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270 resolver 127.0.0.1 [::1]:5353 valid=30s;
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271 </example>
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272 <note>
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273 Before version 1.11.3, this directive was available as part of our
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274 <commercial_version>commercial subscription</commercial_version>.
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275 </note>
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276 </para>
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277
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278 </directive>
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279
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280
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281 <directive name="resolver_timeout">
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282 <syntax><value>time</value></syntax>
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283 <default>30s</default>
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284 <context>stream</context>
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285 <context>server</context>
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diff changeset
286 <appeared-in>1.11.3</appeared-in>
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287
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288 <para>
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289 Sets a timeout for name resolution, for example:
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290 <example>
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291 resolver_timeout 5s;
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292 </example>
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293 <note>
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294 Before version 1.11.3, this directive was available as part of our
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295 <commercial_version>commercial subscription</commercial_version>.
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296 </note>
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297 </para>
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298
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299 </directive>
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300
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301
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302 <directive name="server">
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303 <syntax block="yes"/>
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304 <default/>
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305 <context>stream</context>
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306
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307 <para>
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diff changeset
308 Sets the configuration for a server.
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309 </para>
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310
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311 </directive>
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312
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diff changeset
313
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diff changeset
314 <directive name="stream">
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diff changeset
315 <syntax block="yes"/>
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316 <default/>
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317 <context>main</context>
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318
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319 <para>
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diff changeset
320 Provides the configuration file context in which the stream server directives
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321 are specified.
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322 </para>
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323
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324 </directive>
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325
1546
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diff changeset
326
8ea1813272bb Documented the tcp_nodelay directive for stream.
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diff changeset
327 <directive name="tcp_nodelay">
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diff changeset
328 <syntax><literal>on</literal> | <literal>off</literal></syntax>
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diff changeset
329 <default>on</default>
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diff changeset
330 <context>stream</context>
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diff changeset
331 <context>server</context>
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diff changeset
332 <appeared-in>1.9.4</appeared-in>
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diff changeset
333
8ea1813272bb Documented the tcp_nodelay directive for stream.
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diff changeset
334 <para>
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diff changeset
335 Enables or disables the use of the <c-def>TCP_NODELAY</c-def> option.
8ea1813272bb Documented the tcp_nodelay directive for stream.
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diff changeset
336 The option is enabled for both client and proxied server connections.
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337 </para>
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338
8ea1813272bb Documented the tcp_nodelay directive for stream.
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339 </directive>
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diff changeset
340
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diff changeset
341
a99ebc3af3e4 Added variables_hash_bucket_size and variables_max_size in stream.
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diff changeset
342 <directive name="variables_hash_bucket_size">
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343 <syntax><value>size</value></syntax>
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344 <default>64</default>
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345 <context>stream</context>
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diff changeset
346 <appeared-in>1.11.2</appeared-in>
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347
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348 <para>
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349 Sets the bucket size for the variables hash table.
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350 The details of setting up hash tables are provided in a separate
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diff changeset
351 <link doc="../hash.xml">document</link>.
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352 </para>
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353
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diff changeset
354 </directive>
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diff changeset
355
a99ebc3af3e4 Added variables_hash_bucket_size and variables_max_size in stream.
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diff changeset
356
a99ebc3af3e4 Added variables_hash_bucket_size and variables_max_size in stream.
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diff changeset
357 <directive name="variables_hash_max_size">
a99ebc3af3e4 Added variables_hash_bucket_size and variables_max_size in stream.
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358 <syntax><value>size</value></syntax>
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diff changeset
359 <default>1024</default>
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360 <context>stream</context>
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diff changeset
361 <appeared-in>1.11.2</appeared-in>
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diff changeset
362
a99ebc3af3e4 Added variables_hash_bucket_size and variables_max_size in stream.
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diff changeset
363 <para>
a99ebc3af3e4 Added variables_hash_bucket_size and variables_max_size in stream.
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diff changeset
364 Sets the maximum <value>size</value> of the variables hash table.
a99ebc3af3e4 Added variables_hash_bucket_size and variables_max_size in stream.
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diff changeset
365 The details of setting up hash tables are provided in a separate
a99ebc3af3e4 Added variables_hash_bucket_size and variables_max_size in stream.
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diff changeset
366 <link doc="../hash.xml">document</link>.
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diff changeset
367 </para>
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diff changeset
368
a99ebc3af3e4 Added variables_hash_bucket_size and variables_max_size in stream.
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diff changeset
369 </directive>
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diff changeset
370
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diff changeset
371 </section>
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parents:
diff changeset
372
1742
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diff changeset
373
c511b73da3a9 Documented variables in ngx_stream_core_module.
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diff changeset
374 <section id="variables" name="Embedded Variables">
c511b73da3a9 Documented variables in ngx_stream_core_module.
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diff changeset
375
c511b73da3a9 Documented variables in ngx_stream_core_module.
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diff changeset
376 <para>
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diff changeset
377 The <literal>ngx_stream_core_module</literal> module supports variables
c511b73da3a9 Documented variables in ngx_stream_core_module.
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diff changeset
378 since 1.11.2.
c511b73da3a9 Documented variables in ngx_stream_core_module.
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diff changeset
379 <list type="tag">
c511b73da3a9 Documented variables in ngx_stream_core_module.
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diff changeset
380
c511b73da3a9 Documented variables in ngx_stream_core_module.
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diff changeset
381 <tag-name id="var_binary_remote_addr"><var>$binary_remote_addr</var></tag-name>
c511b73da3a9 Documented variables in ngx_stream_core_module.
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diff changeset
382 <tag-desc>
c511b73da3a9 Documented variables in ngx_stream_core_module.
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diff changeset
383 client address in a binary form, value’s length is always 4 bytes
c511b73da3a9 Documented variables in ngx_stream_core_module.
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parents: 1741
diff changeset
384 for IPv4 addresses or 16 bytes for IPv6 addresses
c511b73da3a9 Documented variables in ngx_stream_core_module.
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diff changeset
385 </tag-desc>
c511b73da3a9 Documented variables in ngx_stream_core_module.
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parents: 1741
diff changeset
386
1768
061b590cbe1a Documented $bytes_received, $session_time, $protocol in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1753
diff changeset
387 <tag-name id="var_bytes_received"><var>$bytes_received</var></tag-name>
061b590cbe1a Documented $bytes_received, $session_time, $protocol in stream.
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parents: 1753
diff changeset
388 <tag-desc>
061b590cbe1a Documented $bytes_received, $session_time, $protocol in stream.
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parents: 1753
diff changeset
389 number of bytes received from a client (1.11.4)
061b590cbe1a Documented $bytes_received, $session_time, $protocol in stream.
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parents: 1753
diff changeset
390 </tag-desc>
061b590cbe1a Documented $bytes_received, $session_time, $protocol in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1753
diff changeset
391
1742
c511b73da3a9 Documented variables in ngx_stream_core_module.
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diff changeset
392 <tag-name id="var_bytes_sent"><var>$bytes_sent</var></tag-name>
c511b73da3a9 Documented variables in ngx_stream_core_module.
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parents: 1741
diff changeset
393 <tag-desc>
c511b73da3a9 Documented variables in ngx_stream_core_module.
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parents: 1741
diff changeset
394 number of bytes sent to a client
c511b73da3a9 Documented variables in ngx_stream_core_module.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1741
diff changeset
395 </tag-desc>
c511b73da3a9 Documented variables in ngx_stream_core_module.
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parents: 1741
diff changeset
396
c511b73da3a9 Documented variables in ngx_stream_core_module.
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diff changeset
397 <tag-name id="var_connection"><var>$connection</var></tag-name>
c511b73da3a9 Documented variables in ngx_stream_core_module.
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parents: 1741
diff changeset
398 <tag-desc>
c511b73da3a9 Documented variables in ngx_stream_core_module.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1741
diff changeset
399 connection serial number
c511b73da3a9 Documented variables in ngx_stream_core_module.
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parents: 1741
diff changeset
400 </tag-desc>
c511b73da3a9 Documented variables in ngx_stream_core_module.
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parents: 1741
diff changeset
401
c511b73da3a9 Documented variables in ngx_stream_core_module.
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parents: 1741
diff changeset
402 <tag-name id="var_hostname"><var>$hostname</var></tag-name>
c511b73da3a9 Documented variables in ngx_stream_core_module.
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parents: 1741
diff changeset
403 <tag-desc>
c511b73da3a9 Documented variables in ngx_stream_core_module.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1741
diff changeset
404 host name
c511b73da3a9 Documented variables in ngx_stream_core_module.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1741
diff changeset
405 </tag-desc>
c511b73da3a9 Documented variables in ngx_stream_core_module.
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parents: 1741
diff changeset
406
c511b73da3a9 Documented variables in ngx_stream_core_module.
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parents: 1741
diff changeset
407 <tag-name id="var_msec"><var>$msec</var></tag-name>
c511b73da3a9 Documented variables in ngx_stream_core_module.
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parents: 1741
diff changeset
408 <tag-desc>
c511b73da3a9 Documented variables in ngx_stream_core_module.
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parents: 1741
diff changeset
409 current time in seconds with the milliseconds resolution
c511b73da3a9 Documented variables in ngx_stream_core_module.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1741
diff changeset
410 </tag-desc>
c511b73da3a9 Documented variables in ngx_stream_core_module.
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parents: 1741
diff changeset
411
c511b73da3a9 Documented variables in ngx_stream_core_module.
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parents: 1741
diff changeset
412 <tag-name id="var_nginx_version"><var>$nginx_version</var></tag-name>
c511b73da3a9 Documented variables in ngx_stream_core_module.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1741
diff changeset
413 <tag-desc>
c511b73da3a9 Documented variables in ngx_stream_core_module.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1741
diff changeset
414 nginx version
c511b73da3a9 Documented variables in ngx_stream_core_module.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1741
diff changeset
415 </tag-desc>
c511b73da3a9 Documented variables in ngx_stream_core_module.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1741
diff changeset
416
c511b73da3a9 Documented variables in ngx_stream_core_module.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1741
diff changeset
417 <tag-name id="var_pid"><var>$pid</var></tag-name>
c511b73da3a9 Documented variables in ngx_stream_core_module.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1741
diff changeset
418 <tag-desc>
c511b73da3a9 Documented variables in ngx_stream_core_module.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1741
diff changeset
419 PID of the worker process
c511b73da3a9 Documented variables in ngx_stream_core_module.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1741
diff changeset
420 </tag-desc>
c511b73da3a9 Documented variables in ngx_stream_core_module.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1741
diff changeset
421
1768
061b590cbe1a Documented $bytes_received, $session_time, $protocol in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1753
diff changeset
422 <tag-name id="var_protocol"><var>$protocol</var></tag-name>
061b590cbe1a Documented $bytes_received, $session_time, $protocol in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1753
diff changeset
423 <tag-desc>
061b590cbe1a Documented $bytes_received, $session_time, $protocol in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1753
diff changeset
424 protocol used to communicate with the client:
061b590cbe1a Documented $bytes_received, $session_time, $protocol in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1753
diff changeset
425 <literal>TCP</literal> or <literal>UDP</literal> (1.11.4)
061b590cbe1a Documented $bytes_received, $session_time, $protocol in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1753
diff changeset
426 </tag-desc>
061b590cbe1a Documented $bytes_received, $session_time, $protocol in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1753
diff changeset
427
1778
1626f1bf164c Documented listen proxy_protocol, $proxy_protocol_addr, $proxy_protocol_port.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1771
diff changeset
428 <tag-name id="var_proxy_protocol_addr"><var>$proxy_protocol_addr</var></tag-name>
1626f1bf164c Documented listen proxy_protocol, $proxy_protocol_addr, $proxy_protocol_port.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1771
diff changeset
429 <tag-desc>
1626f1bf164c Documented listen proxy_protocol, $proxy_protocol_addr, $proxy_protocol_port.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1771
diff changeset
430 client address from the PROXY protocol header, or an empty string otherwise
1626f1bf164c Documented listen proxy_protocol, $proxy_protocol_addr, $proxy_protocol_port.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1771
diff changeset
431 (1.11.4)
1626f1bf164c Documented listen proxy_protocol, $proxy_protocol_addr, $proxy_protocol_port.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1771
diff changeset
432 <para>
1626f1bf164c Documented listen proxy_protocol, $proxy_protocol_addr, $proxy_protocol_port.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1771
diff changeset
433 The PROXY protocol must be previously enabled by setting the
1626f1bf164c Documented listen proxy_protocol, $proxy_protocol_addr, $proxy_protocol_port.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1771
diff changeset
434 <literal>proxy_protocol</literal> parameter
1626f1bf164c Documented listen proxy_protocol, $proxy_protocol_addr, $proxy_protocol_port.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1771
diff changeset
435 in the <link id="listen"/> directive.
1626f1bf164c Documented listen proxy_protocol, $proxy_protocol_addr, $proxy_protocol_port.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1771
diff changeset
436 </para>
1626f1bf164c Documented listen proxy_protocol, $proxy_protocol_addr, $proxy_protocol_port.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1771
diff changeset
437 </tag-desc>
1626f1bf164c Documented listen proxy_protocol, $proxy_protocol_addr, $proxy_protocol_port.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1771
diff changeset
438
1626f1bf164c Documented listen proxy_protocol, $proxy_protocol_addr, $proxy_protocol_port.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1771
diff changeset
439 <tag-name id="var_proxy_protocol_port"><var>$proxy_protocol_port</var></tag-name>
1626f1bf164c Documented listen proxy_protocol, $proxy_protocol_addr, $proxy_protocol_port.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1771
diff changeset
440 <tag-desc>
1626f1bf164c Documented listen proxy_protocol, $proxy_protocol_addr, $proxy_protocol_port.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1771
diff changeset
441 client port from the PROXY protocol header, or an empty string otherwise
1626f1bf164c Documented listen proxy_protocol, $proxy_protocol_addr, $proxy_protocol_port.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1771
diff changeset
442 (1.11.4)
1626f1bf164c Documented listen proxy_protocol, $proxy_protocol_addr, $proxy_protocol_port.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1771
diff changeset
443 <para>
1626f1bf164c Documented listen proxy_protocol, $proxy_protocol_addr, $proxy_protocol_port.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1771
diff changeset
444 The PROXY protocol must be previously enabled by setting the
1626f1bf164c Documented listen proxy_protocol, $proxy_protocol_addr, $proxy_protocol_port.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1771
diff changeset
445 <literal>proxy_protocol</literal> parameter
1626f1bf164c Documented listen proxy_protocol, $proxy_protocol_addr, $proxy_protocol_port.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1771
diff changeset
446 in the <link id="listen"/> directive.
1626f1bf164c Documented listen proxy_protocol, $proxy_protocol_addr, $proxy_protocol_port.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1771
diff changeset
447 </para>
1626f1bf164c Documented listen proxy_protocol, $proxy_protocol_addr, $proxy_protocol_port.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1771
diff changeset
448 </tag-desc>
1626f1bf164c Documented listen proxy_protocol, $proxy_protocol_addr, $proxy_protocol_port.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1771
diff changeset
449
1742
c511b73da3a9 Documented variables in ngx_stream_core_module.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1741
diff changeset
450 <tag-name id="var_remote_addr"><var>$remote_addr</var></tag-name>
c511b73da3a9 Documented variables in ngx_stream_core_module.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1741
diff changeset
451 <tag-desc>
c511b73da3a9 Documented variables in ngx_stream_core_module.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1741
diff changeset
452 client address
c511b73da3a9 Documented variables in ngx_stream_core_module.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1741
diff changeset
453 </tag-desc>
c511b73da3a9 Documented variables in ngx_stream_core_module.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1741
diff changeset
454
c511b73da3a9 Documented variables in ngx_stream_core_module.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1741
diff changeset
455 <tag-name id="var_remote_port"><var>$remote_port</var></tag-name>
c511b73da3a9 Documented variables in ngx_stream_core_module.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1741
diff changeset
456 <tag-desc>
c511b73da3a9 Documented variables in ngx_stream_core_module.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1741
diff changeset
457 client port
c511b73da3a9 Documented variables in ngx_stream_core_module.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1741
diff changeset
458 </tag-desc>
c511b73da3a9 Documented variables in ngx_stream_core_module.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1741
diff changeset
459
c511b73da3a9 Documented variables in ngx_stream_core_module.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1741
diff changeset
460 <tag-name id="var_server_addr"><var>$server_addr</var></tag-name>
c511b73da3a9 Documented variables in ngx_stream_core_module.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1741
diff changeset
461 <tag-desc>
c511b73da3a9 Documented variables in ngx_stream_core_module.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1741
diff changeset
462 an address of the server which accepted a connection
c511b73da3a9 Documented variables in ngx_stream_core_module.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1741
diff changeset
463 <para>
c511b73da3a9 Documented variables in ngx_stream_core_module.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1741
diff changeset
464 Computing a value of this variable usually requires one system call.
c511b73da3a9 Documented variables in ngx_stream_core_module.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1741
diff changeset
465 To avoid a system call, the <link id="listen"/> directives
c511b73da3a9 Documented variables in ngx_stream_core_module.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1741
diff changeset
466 must specify addresses and use the <literal>bind</literal> parameter.
c511b73da3a9 Documented variables in ngx_stream_core_module.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1741
diff changeset
467 </para>
c511b73da3a9 Documented variables in ngx_stream_core_module.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1741
diff changeset
468 </tag-desc>
c511b73da3a9 Documented variables in ngx_stream_core_module.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1741
diff changeset
469
c511b73da3a9 Documented variables in ngx_stream_core_module.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1741
diff changeset
470 <tag-name id="var_server_port"><var>$server_port</var></tag-name>
c511b73da3a9 Documented variables in ngx_stream_core_module.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1741
diff changeset
471 <tag-desc>
c511b73da3a9 Documented variables in ngx_stream_core_module.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1741
diff changeset
472 port of the server which accepted a connection
c511b73da3a9 Documented variables in ngx_stream_core_module.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1741
diff changeset
473 </tag-desc>
c511b73da3a9 Documented variables in ngx_stream_core_module.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1741
diff changeset
474
1768
061b590cbe1a Documented $bytes_received, $session_time, $protocol in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1753
diff changeset
475 <tag-name id="var_session_time"><var>$session_time</var></tag-name>
061b590cbe1a Documented $bytes_received, $session_time, $protocol in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1753
diff changeset
476 <tag-desc>
061b590cbe1a Documented $bytes_received, $session_time, $protocol in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1753
diff changeset
477 session duration in seconds with a milliseconds resolution
061b590cbe1a Documented $bytes_received, $session_time, $protocol in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1753
diff changeset
478 (1.11.4);
061b590cbe1a Documented $bytes_received, $session_time, $protocol in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1753
diff changeset
479 </tag-desc>
061b590cbe1a Documented $bytes_received, $session_time, $protocol in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1753
diff changeset
480
1771
6a30f04a0208 Documented the $status variable in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1768
diff changeset
481 <tag-name id="var_status"><var>$status</var></tag-name>
6a30f04a0208 Documented the $status variable in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1768
diff changeset
482 <tag-desc>
6a30f04a0208 Documented the $status variable in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1768
diff changeset
483 session status (1.11.4), can be one of the following:
6a30f04a0208 Documented the $status variable in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1768
diff changeset
484 <list type="tag">
6a30f04a0208 Documented the $status variable in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1768
diff changeset
485
6a30f04a0208 Documented the $status variable in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1768
diff changeset
486 <tag-name><literal>200</literal></tag-name>
6a30f04a0208 Documented the $status variable in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1768
diff changeset
487 <tag-desc>
6a30f04a0208 Documented the $status variable in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1768
diff changeset
488 session completed successfully
6a30f04a0208 Documented the $status variable in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1768
diff changeset
489 </tag-desc>
6a30f04a0208 Documented the $status variable in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1768
diff changeset
490
1780
8df9ba4e56c6 Documented 400 error in stream $status.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1778
diff changeset
491 <tag-name><literal>400</literal></tag-name>
8df9ba4e56c6 Documented 400 error in stream $status.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1778
diff changeset
492 <tag-desc>
8df9ba4e56c6 Documented 400 error in stream $status.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1778
diff changeset
493 client data could not be parsed, for example,
8df9ba4e56c6 Documented 400 error in stream $status.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1778
diff changeset
494 the <link id="proxy_protocol">PROXY protocol</link> header
8df9ba4e56c6 Documented 400 error in stream $status.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1778
diff changeset
495 </tag-desc>
8df9ba4e56c6 Documented 400 error in stream $status.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1778
diff changeset
496
1771
6a30f04a0208 Documented the $status variable in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1768
diff changeset
497 <tag-name><literal>403</literal></tag-name>
6a30f04a0208 Documented the $status variable in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1768
diff changeset
498 <tag-desc>
6a30f04a0208 Documented the $status variable in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1768
diff changeset
499 access forbidden, for example, when access is limited for
6a30f04a0208 Documented the $status variable in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1768
diff changeset
500 <link doc="ngx_stream_access_module.xml">certain client addresses</link>
6a30f04a0208 Documented the $status variable in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1768
diff changeset
501 </tag-desc>
6a30f04a0208 Documented the $status variable in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1768
diff changeset
502
6a30f04a0208 Documented the $status variable in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1768
diff changeset
503 <tag-name><literal>500</literal></tag-name>
6a30f04a0208 Documented the $status variable in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1768
diff changeset
504 <tag-desc>
6a30f04a0208 Documented the $status variable in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1768
diff changeset
505 internal server error
6a30f04a0208 Documented the $status variable in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1768
diff changeset
506 </tag-desc>
6a30f04a0208 Documented the $status variable in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1768
diff changeset
507
6a30f04a0208 Documented the $status variable in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1768
diff changeset
508 <tag-name><literal>502</literal></tag-name>
6a30f04a0208 Documented the $status variable in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1768
diff changeset
509 <tag-desc>
6a30f04a0208 Documented the $status variable in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1768
diff changeset
510 bad gateway, for example,
6a30f04a0208 Documented the $status variable in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1768
diff changeset
511 if an upstream server could not be selected or reached.
6a30f04a0208 Documented the $status variable in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1768
diff changeset
512 </tag-desc>
6a30f04a0208 Documented the $status variable in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1768
diff changeset
513
6a30f04a0208 Documented the $status variable in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1768
diff changeset
514 <tag-name><literal>503</literal></tag-name>
6a30f04a0208 Documented the $status variable in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1768
diff changeset
515 <tag-desc>
6a30f04a0208 Documented the $status variable in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1768
diff changeset
516 service unavailable, for example, when access is limited by the
6a30f04a0208 Documented the $status variable in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1768
diff changeset
517 <link doc="ngx_stream_limit_conn_module.xml">number of connections</link>
6a30f04a0208 Documented the $status variable in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1768
diff changeset
518 </tag-desc>
6a30f04a0208 Documented the $status variable in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1768
diff changeset
519
6a30f04a0208 Documented the $status variable in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1768
diff changeset
520 </list>
6a30f04a0208 Documented the $status variable in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1768
diff changeset
521 </tag-desc>
6a30f04a0208 Documented the $status variable in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1768
diff changeset
522
1742
c511b73da3a9 Documented variables in ngx_stream_core_module.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1741
diff changeset
523 <tag-name id="var_time_iso8601"><var>$time_iso8601</var></tag-name>
c511b73da3a9 Documented variables in ngx_stream_core_module.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1741
diff changeset
524 <tag-desc>
c511b73da3a9 Documented variables in ngx_stream_core_module.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1741
diff changeset
525 local time in the ISO 8601 standard format
c511b73da3a9 Documented variables in ngx_stream_core_module.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1741
diff changeset
526 </tag-desc>
c511b73da3a9 Documented variables in ngx_stream_core_module.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1741
diff changeset
527
c511b73da3a9 Documented variables in ngx_stream_core_module.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1741
diff changeset
528 <tag-name id="var_time_local"><var>$time_local</var></tag-name>
c511b73da3a9 Documented variables in ngx_stream_core_module.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1741
diff changeset
529 <tag-desc>
c511b73da3a9 Documented variables in ngx_stream_core_module.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1741
diff changeset
530 local time in the Common Log Format
c511b73da3a9 Documented variables in ngx_stream_core_module.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1741
diff changeset
531 </tag-desc>
c511b73da3a9 Documented variables in ngx_stream_core_module.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1741
diff changeset
532
c511b73da3a9 Documented variables in ngx_stream_core_module.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1741
diff changeset
533 </list>
c511b73da3a9 Documented variables in ngx_stream_core_module.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1741
diff changeset
534 </para>
c511b73da3a9 Documented variables in ngx_stream_core_module.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1741
diff changeset
535
c511b73da3a9 Documented variables in ngx_stream_core_module.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1741
diff changeset
536 </section>
c511b73da3a9 Documented variables in ngx_stream_core_module.
Yaroslav Zhuravlev <yar@nginx.com>
parents: 1741
diff changeset
537
1367
f1e14d87d833 Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
538 </module>