Mercurial > hg > nginx-site
annotate xml/en/docs/stream/ngx_stream_core_module.xml @ 2466:d4be176c6345
njs-0.3.7
author | Yaroslav Zhuravlev <yar@nginx.com> |
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date | Tue, 19 Nov 2019 17:37:00 +0300 |
parents | 9cd5883ac546 |
children | c8f0f30e1513 |
rev | line source |
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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="31"> |
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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 reuseport; |
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62 proxy_timeout 20s; |
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63 proxy_pass dns; |
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64 } |
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65 |
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66 server { |
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67 listen [::1]:12345; |
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68 proxy_pass unix:/tmp/stream.socket; |
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69 } |
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70 } |
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71 </example> |
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72 </para> |
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73 |
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74 </section> |
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75 |
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76 |
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77 <section id="directives" name="Directives"> |
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78 |
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79 <directive name="listen"> |
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80 <syntax> |
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81 <value>address</value>:<value>port</value> |
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82 [<literal>ssl</literal>] |
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83 [<literal>udp</literal>] |
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84 [<literal>proxy_protocol</literal>] |
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85 [<literal>backlog</literal>=<value>number</value>] |
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86 [<literal>rcvbuf</literal>=<value>size</value>] |
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87 [<literal>sndbuf</literal>=<value>size</value>] |
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88 [<literal>bind</literal>] |
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89 [<literal>ipv6only</literal>=<literal>on</literal>|<literal>off</literal>] |
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90 [<literal>reuseport</literal>] |
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91 [<literal>so_keepalive</literal>=<literal>on</literal>|<literal>off</literal>|[<value>keepidle</value>]:[<value>keepintvl</value>]:[<value>keepcnt</value>]]</syntax> |
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92 <default/> |
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93 <context>server</context> |
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94 |
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95 <para> |
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96 Sets the <value>address</value> and <value>port</value> for the socket |
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97 on which the server will accept connections. |
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98 It is possible to specify just the port. |
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99 The address can also be a hostname, for example: |
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100 <example> |
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101 listen 127.0.0.1:12345; |
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102 listen *:12345; |
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103 listen 12345; # same as *:12345 |
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104 listen localhost:12345; |
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105 </example> |
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106 IPv6 addresses are specified in square brackets: |
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107 <example> |
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108 listen [::1]:12345; |
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109 listen [::]:12345; |
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110 </example> |
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111 UNIX-domain sockets are specified with the “<literal>unix:</literal>” |
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112 prefix: |
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113 <example> |
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114 listen unix:/var/run/nginx.sock; |
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115 </example> |
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116 </para> |
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117 |
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118 <para id="listen_port_range"> |
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119 Port ranges (1.15.10) are specified with the |
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120 first and last port separated by a hyphen: |
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121 <example> |
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122 listen 127.0.0.1:12345-12399; |
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123 listen 12345-12399; |
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124 </example> |
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125 </para> |
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126 |
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127 <para> |
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128 The <literal>ssl</literal> parameter allows specifying that all |
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129 connections accepted on this port should work in SSL mode. |
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130 </para> |
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131 |
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132 <para id="udp"> |
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133 The <literal>udp</literal> parameter configures a listening socket |
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134 for working with datagrams (1.9.13). |
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135 In order to handle packets from the same address and port in the same session, |
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136 the <link id="reuseport"><literal>reuseport</literal></link> parameter |
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137 should also be specified. |
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138 </para> |
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139 |
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140 <para id="proxy_protocol"> |
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141 The <literal>proxy_protocol</literal> parameter (1.11.4) |
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142 allows specifying that all connections accepted on this port should use the |
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143 <link url="http://www.haproxy.org/download/1.5/doc/proxy-protocol.txt">PROXY |
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144 protocol</link>. |
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145 <note> |
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146 The PROXY protocol version 2 is supported since version 1.13.11. |
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147 </note> |
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148 </para> |
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149 |
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150 <para> |
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151 The <literal>listen</literal> directive |
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152 can have several additional parameters specific to socket-related system calls. |
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153 <list type="tag"> |
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154 |
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155 <tag-name> |
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156 <literal>backlog</literal>=<value>number</value> |
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157 </tag-name> |
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158 <tag-desc> |
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159 sets the <literal>backlog</literal> parameter in the |
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160 <c-func>listen</c-func> call that limits |
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161 the maximum length for the queue of pending connections (1.9.2). |
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162 By default, |
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163 <literal>backlog</literal> is set to -1 on FreeBSD, DragonFly BSD, and macOS, |
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164 and to 511 on other platforms. |
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165 </tag-desc> |
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166 |
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167 <tag-name> |
1963
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168 <literal>rcvbuf</literal>=<value>size</value> |
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169 </tag-name> |
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170 <tag-desc> |
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171 sets the receive buffer size |
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172 (the <c-def>SO_RCVBUF</c-def> option) for the listening socket (1.11.13). |
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|
173 </tag-desc> |
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174 |
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175 <tag-name> |
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176 <literal>sndbuf</literal>=<value>size</value> |
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|
177 </tag-name> |
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|
178 <tag-desc> |
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179 sets the send buffer size |
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|
180 (the <c-def>SO_SNDBUF</c-def> option) for the listening socket (1.11.13). |
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|
181 </tag-desc> |
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182 |
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|
183 <tag-name> |
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184 <literal>bind</literal> |
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185 </tag-name> |
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186 <tag-desc> |
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187 this parameter instructs to make a separate <c-func>bind</c-func> |
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188 call for a given address:port pair. |
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189 The fact is that if there are several <literal>listen</literal> directives with |
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190 the same port but different addresses, and one of the |
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191 <literal>listen</literal> directives listens on all addresses |
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192 for the given port (<literal>*:</literal><value>port</value>), nginx will |
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193 <c-func>bind</c-func> only to <literal>*:</literal><value>port</value>. |
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194 It should be noted that the <c-func>getsockname</c-func> system call will be |
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195 made in this case to determine the address that accepted the connection. |
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196 If the <literal>ipv6only</literal> |
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197 or <literal>so_keepalive</literal> parameters |
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|
198 are used then for a given |
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199 <value>address</value>:<value>port</value> pair |
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200 a separate <c-func>bind</c-func> call will always be made. |
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201 </tag-desc> |
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202 |
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203 <tag-name> |
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204 <literal>ipv6only</literal>=<literal>on</literal>|<literal>off</literal> |
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205 </tag-name> |
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206 <tag-desc> |
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207 this parameter determines |
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208 (via the <c-def>IPV6_V6ONLY</c-def> socket option) |
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209 whether an IPv6 socket listening on a wildcard address <literal>[::]</literal> |
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210 will accept only IPv6 connections or both IPv6 and IPv4 connections. |
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211 This parameter is turned on by default. |
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212 It can only be set once on start. |
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213 </tag-desc> |
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214 |
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215 <tag-name id="reuseport"> |
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216 <literal>reuseport</literal> |
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217 </tag-name> |
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218 <tag-desc> |
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219 this parameter (1.9.1) instructs to create an individual listening socket |
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220 for each worker process |
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221 (using the |
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222 <c-def>SO_REUSEPORT</c-def> socket option on Linux 3.9+ and DragonFly BSD, |
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223 or <c-def>SO_REUSEPORT_LB</c-def> on FreeBSD 12+), allowing a kernel |
1496
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224 to distribute incoming connections between worker processes. |
2199
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225 This currently works only on Linux 3.9+, DragonFly BSD, |
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226 and FreeBSD 12+ (1.15.1). |
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227 <note> |
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228 Inappropriate use of this option may have its security |
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229 <link url="http://man7.org/linux/man-pages/man7/socket.7.html">implications</link>. |
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230 </note> |
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231 </tag-desc> |
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232 |
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233 <tag-name> |
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234 <literal>so_keepalive</literal>=<literal>on</literal>|<literal>off</literal>|[<value>keepidle</value>]:[<value>keepintvl</value>]:[<value>keepcnt</value>] |
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235 </tag-name> |
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236 <tag-desc> |
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237 this parameter configures the “TCP keepalive” behavior |
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238 for the listening socket. |
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239 If this parameter is omitted then the operating system’s settings will be |
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240 in effect for the socket. |
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241 If it is set to the value “<literal>on</literal>”, the |
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242 <c-def>SO_KEEPALIVE</c-def> option is turned on for the socket. |
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243 If it is set to the value “<literal>off</literal>”, the |
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244 <c-def>SO_KEEPALIVE</c-def> option is turned off for the socket. |
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245 Some operating systems support setting of TCP keepalive parameters on |
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246 a per-socket basis using the <c-def>TCP_KEEPIDLE</c-def>, |
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247 <c-def>TCP_KEEPINTVL</c-def>, and <c-def>TCP_KEEPCNT</c-def> socket options. |
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248 On such systems (currently, Linux 2.4+, NetBSD 5+, and |
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249 FreeBSD 9.0-STABLE), they can be configured |
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250 using the <value>keepidle</value>, <value>keepintvl</value>, and |
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251 <value>keepcnt</value> parameters. |
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252 One or two parameters may be omitted, in which case the system default setting |
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253 for the corresponding socket option will be in effect. |
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254 For example, |
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255 <example>so_keepalive=30m::10</example> |
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256 will set the idle timeout (<c-def>TCP_KEEPIDLE</c-def>) to 30 minutes, |
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257 leave the probe interval (<c-def>TCP_KEEPINTVL</c-def>) at its system default, |
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258 and set the probes count (<c-def>TCP_KEEPCNT</c-def>) to 10 probes. |
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259 </tag-desc> |
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260 |
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261 </list> |
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262 </para> |
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263 |
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264 <para> |
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265 Different servers must listen on different |
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266 <value>address</value>:<value>port</value> pairs. |
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267 </para> |
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268 |
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269 </directive> |
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270 |
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271 |
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272 <directive name="preread_buffer_size"> |
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273 <syntax><value>size</value></syntax> |
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274 <default>16k</default> |
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275 <context>stream</context> |
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276 <context>server</context> |
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277 <appeared-in>1.11.5</appeared-in> |
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278 |
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279 <para> |
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280 Specifies a <value>size</value> of the |
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281 <link doc="stream_processing.xml" id="preread_phase">preread</link> buffer. |
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282 </para> |
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283 |
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284 </directive> |
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285 |
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286 |
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287 <directive name="preread_timeout"> |
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288 <syntax><value>timeout</value></syntax> |
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289 <default>30s</default> |
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290 <context>stream</context> |
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291 <context>server</context> |
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292 <appeared-in>1.11.5</appeared-in> |
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293 |
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294 <para> |
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295 Specifies a <value>timeout</value> of the |
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296 <link doc="stream_processing.xml" id="preread_phase">preread</link> phase. |
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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="proxy_protocol_timeout"> |
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303 <syntax><value>timeout</value></syntax> |
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304 <default>30s</default> |
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305 <context>stream</context> |
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306 <context>server</context> |
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307 <appeared-in>1.11.4</appeared-in> |
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308 |
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309 <para> |
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310 Specifies a <value>timeout</value> for |
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311 reading the PROXY protocol header to complete. |
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312 If no entire header is transmitted within this time, |
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313 the connection is closed. |
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314 </para> |
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315 |
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316 </directive> |
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317 |
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318 |
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319 <directive name="resolver"> |
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320 <syntax> |
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321 <value>address</value> ... |
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322 [<literal>valid</literal>=<value>time</value>] |
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323 [<literal>ipv6</literal>=<literal>on</literal>|<literal>off</literal>] |
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324 [<literal>status_zone</literal>=<value>zone</value>]</syntax> |
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325 <default/> |
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326 <context>stream</context> |
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327 <context>server</context> |
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328 <appeared-in>1.11.3</appeared-in> |
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329 |
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330 <para> |
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331 Configures name servers used to resolve names of upstream servers |
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332 into addresses, for example: |
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333 <example> |
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334 resolver 127.0.0.1 [::1]:5353; |
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335 </example> |
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336 The address can be specified as a domain name or IP address, |
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337 with an optional port. |
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338 If port is not specified, the port 53 is used. |
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339 Name servers are queried in a round-robin fashion. |
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340 </para> |
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341 |
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342 <para id="resolver_ipv6"> |
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343 By default, nginx will look up both IPv4 and IPv6 addresses while resolving. |
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344 If looking up of IPv6 addresses is not desired, |
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345 the <literal>ipv6=off</literal> parameter can be specified. |
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346 </para> |
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347 |
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348 <para id="resolver_valid"> |
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349 By default, nginx caches answers using the TTL value of a response. |
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350 The optional <literal>valid</literal> parameter allows overriding it: |
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351 <example> |
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352 resolver 127.0.0.1 [::1]:5353 valid=30s; |
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353 </example> |
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354 </para> |
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355 |
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356 <para id="resolver_status_zone"> |
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357 The optional <literal>status_zone</literal> parameter (1.17.1) |
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358 enables |
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|
359 <link doc="../http/ngx_http_api_module.xml" id="resolvers_">collection</link> |
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360 of DNS server statistics of requests and responses |
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361 in the specified <value>zone</value>. |
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362 The parameter is available as part of our |
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363 <commercial_version>commercial subscription</commercial_version>. |
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364 </para> |
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365 |
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366 <para> |
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367 <note> |
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368 Before version 1.11.3, this directive was available as part of our |
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369 <commercial_version>commercial subscription</commercial_version>. |
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370 </note> |
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371 </para> |
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372 |
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373 </directive> |
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374 |
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375 |
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376 <directive name="resolver_timeout"> |
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377 <syntax><value>time</value></syntax> |
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378 <default>30s</default> |
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379 <context>stream</context> |
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380 <context>server</context> |
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381 <appeared-in>1.11.3</appeared-in> |
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382 |
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383 <para> |
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384 Sets a timeout for name resolution, for example: |
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385 <example> |
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386 resolver_timeout 5s; |
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387 </example> |
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388 <note> |
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389 Before version 1.11.3, this directive was available as part of our |
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390 <commercial_version>commercial subscription</commercial_version>. |
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391 </note> |
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392 </para> |
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393 |
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394 </directive> |
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395 |
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396 |
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397 <directive name="server"> |
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398 <syntax block="yes"/> |
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399 <default/> |
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400 <context>stream</context> |
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|
401 |
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402 <para> |
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403 Sets the configuration for a server. |
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404 </para> |
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|
405 |
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406 </directive> |
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|
407 |
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|
408 |
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409 <directive name="stream"> |
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|
410 <syntax block="yes"/> |
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|
411 <default/> |
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412 <context>main</context> |
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|
413 |
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414 <para> |
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415 Provides the configuration file context in which the stream server directives |
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416 are specified. |
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417 </para> |
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|
418 |
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419 </directive> |
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|
420 |
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421 |
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422 <directive name="tcp_nodelay"> |
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423 <syntax><literal>on</literal> | <literal>off</literal></syntax> |
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424 <default>on</default> |
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425 <context>stream</context> |
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426 <context>server</context> |
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|
427 <appeared-in>1.9.4</appeared-in> |
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|
428 |
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|
429 <para> |
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|
430 Enables or disables the use of the <c-def>TCP_NODELAY</c-def> option. |
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431 The option is enabled for both client and proxied server connections. |
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432 </para> |
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|
433 |
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|
434 </directive> |
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|
435 |
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|
436 |
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|
437 <directive name="variables_hash_bucket_size"> |
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438 <syntax><value>size</value></syntax> |
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|
439 <default>64</default> |
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440 <context>stream</context> |
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441 <appeared-in>1.11.2</appeared-in> |
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442 |
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443 <para> |
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|
444 Sets the bucket size for the variables hash table. |
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445 The details of setting up hash tables are provided in a separate |
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|
446 <link doc="../hash.xml">document</link>. |
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447 </para> |
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|
448 |
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|
449 </directive> |
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|
450 |
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|
451 |
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|
452 <directive name="variables_hash_max_size"> |
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|
453 <syntax><value>size</value></syntax> |
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|
454 <default>1024</default> |
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455 <context>stream</context> |
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456 <appeared-in>1.11.2</appeared-in> |
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|
457 |
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458 <para> |
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|
459 Sets the maximum <value>size</value> of the variables hash table. |
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460 The details of setting up hash tables are provided in a separate |
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|
461 <link doc="../hash.xml">document</link>. |
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462 </para> |
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|
463 |
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|
464 </directive> |
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|
465 |
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|
466 </section> |
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|
467 |
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468 |
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|
469 <section id="variables" name="Embedded Variables"> |
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|
470 |
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|
471 <para> |
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|
472 The <literal>ngx_stream_core_module</literal> module supports variables |
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|
473 since 1.11.2. |
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|
474 <list type="tag"> |
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|
475 |
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|
476 <tag-name id="var_binary_remote_addr"><var>$binary_remote_addr</var></tag-name> |
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|
477 <tag-desc> |
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|
478 client address in a binary form, value’s length is always 4 bytes |
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|
479 for IPv4 addresses or 16 bytes for IPv6 addresses |
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|
480 </tag-desc> |
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|
481 |
1768
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Documented $bytes_received, $session_time, $protocol in stream.
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|
482 <tag-name id="var_bytes_received"><var>$bytes_received</var></tag-name> |
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|
483 <tag-desc> |
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|
484 number of bytes received from a client (1.11.4) |
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|
485 </tag-desc> |
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|
486 |
1742
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|
487 <tag-name id="var_bytes_sent"><var>$bytes_sent</var></tag-name> |
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|
488 <tag-desc> |
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489 number of bytes sent to a client |
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|
490 </tag-desc> |
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|
491 |
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|
492 <tag-name id="var_connection"><var>$connection</var></tag-name> |
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|
493 <tag-desc> |
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494 connection serial number |
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|
495 </tag-desc> |
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|
496 |
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|
497 <tag-name id="var_hostname"><var>$hostname</var></tag-name> |
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|
498 <tag-desc> |
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499 host name |
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|
500 </tag-desc> |
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|
501 |
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|
502 <tag-name id="var_msec"><var>$msec</var></tag-name> |
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|
503 <tag-desc> |
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|
504 current time in seconds with the milliseconds resolution |
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|
505 </tag-desc> |
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Documented variables in ngx_stream_core_module.
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changeset
|
506 |
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|
507 <tag-name id="var_nginx_version"><var>$nginx_version</var></tag-name> |
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|
508 <tag-desc> |
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|
509 nginx version |
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Documented variables in ngx_stream_core_module.
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changeset
|
510 </tag-desc> |
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Documented variables in ngx_stream_core_module.
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changeset
|
511 |
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Documented variables in ngx_stream_core_module.
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|
512 <tag-name id="var_pid"><var>$pid</var></tag-name> |
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Documented variables in ngx_stream_core_module.
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|
513 <tag-desc> |
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Documented variables in ngx_stream_core_module.
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|
514 PID of the worker process |
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Documented variables in ngx_stream_core_module.
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changeset
|
515 </tag-desc> |
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Documented variables in ngx_stream_core_module.
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changeset
|
516 |
1768
061b590cbe1a
Documented $bytes_received, $session_time, $protocol in stream.
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|
517 <tag-name id="var_protocol"><var>$protocol</var></tag-name> |
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Documented $bytes_received, $session_time, $protocol in stream.
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|
518 <tag-desc> |
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Documented $bytes_received, $session_time, $protocol in stream.
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changeset
|
519 protocol used to communicate with the client: |
061b590cbe1a
Documented $bytes_received, $session_time, $protocol in stream.
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|
520 <literal>TCP</literal> or <literal>UDP</literal> (1.11.4) |
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Documented $bytes_received, $session_time, $protocol in stream.
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|
521 </tag-desc> |
061b590cbe1a
Documented $bytes_received, $session_time, $protocol in stream.
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diff
changeset
|
522 |
1778
1626f1bf164c
Documented listen proxy_protocol, $proxy_protocol_addr, $proxy_protocol_port.
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diff
changeset
|
523 <tag-name id="var_proxy_protocol_addr"><var>$proxy_protocol_addr</var></tag-name> |
1626f1bf164c
Documented listen proxy_protocol, $proxy_protocol_addr, $proxy_protocol_port.
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diff
changeset
|
524 <tag-desc> |
2457
3896055c397e
Fixed descriptions of $proxy_protocol_addr and $proxy_protocol_port.
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2452
diff
changeset
|
525 client address from the PROXY protocol header (1.11.4) |
1778
1626f1bf164c
Documented listen proxy_protocol, $proxy_protocol_addr, $proxy_protocol_port.
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changeset
|
526 <para> |
1626f1bf164c
Documented listen proxy_protocol, $proxy_protocol_addr, $proxy_protocol_port.
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changeset
|
527 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>
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changeset
|
528 <literal>proxy_protocol</literal> parameter |
1626f1bf164c
Documented listen proxy_protocol, $proxy_protocol_addr, $proxy_protocol_port.
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diff
changeset
|
529 in the <link id="listen"/> directive. |
1626f1bf164c
Documented listen proxy_protocol, $proxy_protocol_addr, $proxy_protocol_port.
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diff
changeset
|
530 </para> |
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Documented listen proxy_protocol, $proxy_protocol_addr, $proxy_protocol_port.
Yaroslav Zhuravlev <yar@nginx.com>
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|
531 </tag-desc> |
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Documented listen proxy_protocol, $proxy_protocol_addr, $proxy_protocol_port.
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diff
changeset
|
532 |
1626f1bf164c
Documented listen proxy_protocol, $proxy_protocol_addr, $proxy_protocol_port.
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diff
changeset
|
533 <tag-name id="var_proxy_protocol_port"><var>$proxy_protocol_port</var></tag-name> |
1626f1bf164c
Documented listen proxy_protocol, $proxy_protocol_addr, $proxy_protocol_port.
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changeset
|
534 <tag-desc> |
2457
3896055c397e
Fixed descriptions of $proxy_protocol_addr and $proxy_protocol_port.
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diff
changeset
|
535 client port from the PROXY protocol header (1.11.4) |
1778
1626f1bf164c
Documented listen proxy_protocol, $proxy_protocol_addr, $proxy_protocol_port.
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changeset
|
536 <para> |
1626f1bf164c
Documented listen proxy_protocol, $proxy_protocol_addr, $proxy_protocol_port.
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changeset
|
537 The PROXY protocol must be previously enabled by setting the |
1626f1bf164c
Documented listen proxy_protocol, $proxy_protocol_addr, $proxy_protocol_port.
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diff
changeset
|
538 <literal>proxy_protocol</literal> parameter |
1626f1bf164c
Documented listen proxy_protocol, $proxy_protocol_addr, $proxy_protocol_port.
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diff
changeset
|
539 in the <link id="listen"/> directive. |
1626f1bf164c
Documented listen proxy_protocol, $proxy_protocol_addr, $proxy_protocol_port.
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diff
changeset
|
540 </para> |
1626f1bf164c
Documented listen proxy_protocol, $proxy_protocol_addr, $proxy_protocol_port.
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changeset
|
541 </tag-desc> |
1626f1bf164c
Documented listen proxy_protocol, $proxy_protocol_addr, $proxy_protocol_port.
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diff
changeset
|
542 |
2458
9cd5883ac546
Documented $proxy_protocol_server_addr, $proxy_protocol_server_port.
Yaroslav Zhuravlev <yar@nginx.com>
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diff
changeset
|
543 <tag-name id="var_proxy_protocol_server_addr"><var>$proxy_protocol_server_addr</var></tag-name> |
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Documented $proxy_protocol_server_addr, $proxy_protocol_server_port.
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diff
changeset
|
544 <tag-desc> |
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Documented $proxy_protocol_server_addr, $proxy_protocol_server_port.
Yaroslav Zhuravlev <yar@nginx.com>
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diff
changeset
|
545 server address from the PROXY protocol header (1.17.6) |
9cd5883ac546
Documented $proxy_protocol_server_addr, $proxy_protocol_server_port.
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diff
changeset
|
546 <para> |
9cd5883ac546
Documented $proxy_protocol_server_addr, $proxy_protocol_server_port.
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diff
changeset
|
547 The PROXY protocol must be previously enabled by setting the |
9cd5883ac546
Documented $proxy_protocol_server_addr, $proxy_protocol_server_port.
Yaroslav Zhuravlev <yar@nginx.com>
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diff
changeset
|
548 <literal>proxy_protocol</literal> parameter |
9cd5883ac546
Documented $proxy_protocol_server_addr, $proxy_protocol_server_port.
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parents:
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diff
changeset
|
549 in the <link id="listen"/> directive. |
9cd5883ac546
Documented $proxy_protocol_server_addr, $proxy_protocol_server_port.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
550 </para> |
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Documented $proxy_protocol_server_addr, $proxy_protocol_server_port.
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diff
changeset
|
551 </tag-desc> |
9cd5883ac546
Documented $proxy_protocol_server_addr, $proxy_protocol_server_port.
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diff
changeset
|
552 |
9cd5883ac546
Documented $proxy_protocol_server_addr, $proxy_protocol_server_port.
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diff
changeset
|
553 <tag-name id="var_proxy_protocol_server_port"><var>$proxy_protocol_server_port</var></tag-name> |
9cd5883ac546
Documented $proxy_protocol_server_addr, $proxy_protocol_server_port.
Yaroslav Zhuravlev <yar@nginx.com>
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diff
changeset
|
554 <tag-desc> |
9cd5883ac546
Documented $proxy_protocol_server_addr, $proxy_protocol_server_port.
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parents:
2457
diff
changeset
|
555 server port from the PROXY protocol header (1.17.6) |
9cd5883ac546
Documented $proxy_protocol_server_addr, $proxy_protocol_server_port.
Yaroslav Zhuravlev <yar@nginx.com>
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diff
changeset
|
556 <para> |
9cd5883ac546
Documented $proxy_protocol_server_addr, $proxy_protocol_server_port.
Yaroslav Zhuravlev <yar@nginx.com>
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diff
changeset
|
557 The PROXY protocol must be previously enabled by setting the |
9cd5883ac546
Documented $proxy_protocol_server_addr, $proxy_protocol_server_port.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2457
diff
changeset
|
558 <literal>proxy_protocol</literal> parameter |
9cd5883ac546
Documented $proxy_protocol_server_addr, $proxy_protocol_server_port.
Yaroslav Zhuravlev <yar@nginx.com>
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diff
changeset
|
559 in the <link id="listen"/> directive. |
9cd5883ac546
Documented $proxy_protocol_server_addr, $proxy_protocol_server_port.
Yaroslav Zhuravlev <yar@nginx.com>
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diff
changeset
|
560 </para> |
9cd5883ac546
Documented $proxy_protocol_server_addr, $proxy_protocol_server_port.
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parents:
2457
diff
changeset
|
561 </tag-desc> |
9cd5883ac546
Documented $proxy_protocol_server_addr, $proxy_protocol_server_port.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2457
diff
changeset
|
562 |
1742
c511b73da3a9
Documented variables in ngx_stream_core_module.
Yaroslav Zhuravlev <yar@nginx.com>
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diff
changeset
|
563 <tag-name id="var_remote_addr"><var>$remote_addr</var></tag-name> |
c511b73da3a9
Documented variables in ngx_stream_core_module.
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diff
changeset
|
564 <tag-desc> |
c511b73da3a9
Documented variables in ngx_stream_core_module.
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parents:
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diff
changeset
|
565 client address |
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Documented variables in ngx_stream_core_module.
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diff
changeset
|
566 </tag-desc> |
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Documented variables in ngx_stream_core_module.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
567 |
c511b73da3a9
Documented variables in ngx_stream_core_module.
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diff
changeset
|
568 <tag-name id="var_remote_port"><var>$remote_port</var></tag-name> |
c511b73da3a9
Documented variables in ngx_stream_core_module.
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diff
changeset
|
569 <tag-desc> |
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Documented variables in ngx_stream_core_module.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1741
diff
changeset
|
570 client port |
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Documented variables in ngx_stream_core_module.
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parents:
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diff
changeset
|
571 </tag-desc> |
c511b73da3a9
Documented variables in ngx_stream_core_module.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
572 |
c511b73da3a9
Documented variables in ngx_stream_core_module.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
573 <tag-name id="var_server_addr"><var>$server_addr</var></tag-name> |
c511b73da3a9
Documented variables in ngx_stream_core_module.
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parents:
1741
diff
changeset
|
574 <tag-desc> |
c511b73da3a9
Documented variables in ngx_stream_core_module.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1741
diff
changeset
|
575 an address of the server which accepted a connection |
c511b73da3a9
Documented variables in ngx_stream_core_module.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
576 <para> |
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577 Computing a value of this variable usually requires one system call. |
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578 To avoid a system call, the <link id="listen"/> directives |
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579 must specify addresses and use the <literal>bind</literal> parameter. |
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580 </para> |
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581 </tag-desc> |
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582 |
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583 <tag-name id="var_server_port"><var>$server_port</var></tag-name> |
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584 <tag-desc> |
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585 port of the server which accepted a connection |
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586 </tag-desc> |
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587 |
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588 <tag-name id="var_session_time"><var>$session_time</var></tag-name> |
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589 <tag-desc> |
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590 session duration in seconds with a milliseconds resolution |
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591 (1.11.4); |
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592 </tag-desc> |
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593 |
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594 <tag-name id="var_status"><var>$status</var></tag-name> |
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595 <tag-desc> |
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596 session status (1.11.4), can be one of the following: |
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597 <list type="tag"> |
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598 |
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599 <tag-name><literal>200</literal></tag-name> |
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600 <tag-desc> |
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601 session completed successfully |
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602 </tag-desc> |
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603 |
1780
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604 <tag-name><literal>400</literal></tag-name> |
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605 <tag-desc> |
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606 client data could not be parsed, for example, |
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607 the <link id="proxy_protocol">PROXY protocol</link> header |
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608 </tag-desc> |
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609 |
1771
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610 <tag-name><literal>403</literal></tag-name> |
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611 <tag-desc> |
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612 access forbidden, for example, when access is limited for |
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613 <link doc="ngx_stream_access_module.xml">certain client addresses</link> |
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614 </tag-desc> |
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615 |
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616 <tag-name><literal>500</literal></tag-name> |
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617 <tag-desc> |
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618 internal server error |
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619 </tag-desc> |
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620 |
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621 <tag-name><literal>502</literal></tag-name> |
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622 <tag-desc> |
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623 bad gateway, for example, |
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624 if an upstream server could not be selected or reached. |
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625 </tag-desc> |
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626 |
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627 <tag-name><literal>503</literal></tag-name> |
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628 <tag-desc> |
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629 service unavailable, for example, when access is limited by the |
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630 <link doc="ngx_stream_limit_conn_module.xml">number of connections</link> |
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631 </tag-desc> |
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632 |
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633 </list> |
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634 </tag-desc> |
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635 |
1742
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636 <tag-name id="var_time_iso8601"><var>$time_iso8601</var></tag-name> |
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637 <tag-desc> |
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638 local time in the ISO 8601 standard format |
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639 </tag-desc> |
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640 |
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641 <tag-name id="var_time_local"><var>$time_local</var></tag-name> |
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642 <tag-desc> |
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643 local time in the Common Log Format |
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644 </tag-desc> |
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645 |
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646 </list> |
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647 </para> |
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648 |
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649 </section> |
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650 |
1367
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651 </module> |