Mercurial > hg > nginx-site
annotate xml/en/docs/stream/ngx_stream_proxy_module.xml @ 1754:c6c9ed2ea7e4
Updated with Netcraft July 2016 Web Server Survey stats.
author | Yaroslav Zhuravlev <yar@nginx.com> |
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date | Tue, 19 Jul 2016 23:13:21 +0300 |
parents | ab56dcd73af2 |
children | 2e0d07952c8f |
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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_proxy_module" |
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10 link="/en/docs/stream/ngx_stream_proxy_module.html" |
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11 lang="en" |
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12 rev="15"> |
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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_proxy_module</literal> module (1.9.0) allows proxying |
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18 data streams over TCP, UDP (1.9.13), and UNIX-domain sockets. |
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19 </para> |
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20 |
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21 </section> |
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22 |
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23 |
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24 <section id="example" name="Example Configuration"> |
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25 |
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26 <para> |
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27 <example> |
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28 server { |
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29 listen 127.0.0.1:12345; |
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30 proxy_pass 127.0.0.1:8080; |
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31 } |
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32 |
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33 server { |
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34 listen 12345; |
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35 proxy_connect_timeout 1s; |
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36 proxy_timeout 1m; |
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37 proxy_pass example.com:12345; |
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38 } |
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39 |
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40 server { |
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41 listen 53 udp; |
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42 proxy_responses 1; |
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43 proxy_timeout 20s; |
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44 proxy_pass dns.example.com:53; |
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45 } |
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46 |
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47 server { |
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48 listen [::1]:12345; |
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49 proxy_pass unix:/tmp/stream.socket; |
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50 } |
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51 </example> |
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52 </para> |
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53 |
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54 </section> |
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55 |
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56 |
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57 <section id="directives" name="Directives"> |
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58 |
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59 <directive name="proxy_bind"> |
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60 <syntax><value>address</value> [transparent] | <literal>off</literal></syntax> |
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61 <default/> |
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62 <context>stream</context> |
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63 <context>server</context> |
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64 <appeared-in>1.9.2</appeared-in> |
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65 |
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66 <para> |
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67 Makes outgoing connections to a proxied server originate |
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68 from the specified local IP <value>address</value>. |
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69 Parameter value can contain variables (1.11.2). |
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70 The special value <literal>off</literal> cancels the effect |
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71 of the <literal>proxy_bind</literal> directive |
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72 inherited from the previous configuration level, which allows the |
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73 system to auto-assign the local IP address. |
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74 </para> |
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75 |
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76 <para id="proxy_bind_transparent"> |
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77 The <literal>transparent</literal> parameter (1.11.0) allows |
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78 outgoing connections to a proxied server originate |
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79 from a non-local IP address, |
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80 for example, from a real IP address of a client: |
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81 <example> |
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82 proxy_bind $remote_addr transparent; |
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83 </example> |
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84 In order for this parameter to work, |
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85 it is necessary to run nginx worker processes with the |
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86 <link doc="../ngx_core_module.xml" id="user">superuser</link> privileges |
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87 and configure kernel routing table |
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88 to intercept network traffic from the proxied server. |
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89 </para> |
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90 |
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91 </directive> |
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92 |
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93 |
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94 <directive name="proxy_buffer_size"> |
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95 <syntax><value>size</value></syntax> |
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96 <default>16k</default> |
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97 <context>stream</context> |
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98 <context>server</context> |
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99 <appeared-in>1.9.4</appeared-in> |
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100 |
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101 <para> |
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102 Sets the <value>size</value> of the buffer used for reading data |
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103 from the proxied server. |
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104 Also sets the <value>size</value> of the buffer used for reading data |
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105 from the client. |
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106 </para> |
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107 |
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108 </directive> |
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109 |
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110 |
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111 <directive name="proxy_connect_timeout"> |
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112 <syntax><value>time</value></syntax> |
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113 <default>60s</default> |
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114 <context>stream</context> |
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115 <context>server</context> |
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116 |
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117 <para> |
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118 Defines a timeout for establishing a connection with a proxied server. |
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119 </para> |
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120 |
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121 </directive> |
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122 |
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123 |
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124 <directive name="proxy_download_rate"> |
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125 <syntax><value>rate</value></syntax> |
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126 <default>0</default> |
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127 <context>stream</context> |
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128 <context>server</context> |
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129 <appeared-in>1.9.3</appeared-in> |
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130 |
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131 <para> |
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132 Limits the speed of reading the data from the proxied server. |
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133 The <value>rate</value> is specified in bytes per second. |
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134 The zero value disables rate limiting. |
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135 The limit is set per a connection, so if nginx simultaneously opens |
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136 two connections to the proxied server, |
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137 the overall rate will be twice as much as the specified limit. |
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138 </para> |
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139 |
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140 </directive> |
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141 |
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142 |
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143 <directive name="proxy_next_upstream"> |
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144 <syntax><literal>on</literal> | <literal>off</literal></syntax> |
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145 <default>on</default> |
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146 <context>stream</context> |
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147 <context>server</context> |
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148 |
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149 <para> |
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150 When a connection to the proxied server cannot be established, determines |
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151 whether a client connection will be passed to the next server. |
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152 </para> |
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153 |
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154 <para> |
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155 Passing a connection to the next server can be limited by |
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156 <link id="proxy_next_upstream_tries">the number of tries</link> |
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157 and by <link id="proxy_next_upstream_timeout">time</link>. |
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158 </para> |
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159 |
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160 </directive> |
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161 |
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162 |
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163 <directive name="proxy_next_upstream_timeout"> |
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164 <syntax><value>time</value></syntax> |
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165 <default>0</default> |
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166 <context>stream</context> |
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167 <context>server</context> |
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168 |
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169 <para> |
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170 Limits the time allowed to pass a connection to the |
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171 <link id="proxy_next_upstream">next server</link>. |
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172 The <literal>0</literal> value turns off this limitation. |
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173 </para> |
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174 |
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175 </directive> |
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176 |
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177 |
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178 <directive name="proxy_next_upstream_tries"> |
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179 <syntax><value>number</value></syntax> |
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180 <default>0</default> |
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181 <context>stream</context> |
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182 <context>server</context> |
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183 |
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184 <para> |
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185 Limits the number of possible tries for passing a connection to the |
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186 <link id="proxy_next_upstream">next server</link>. |
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187 The <literal>0</literal> value turns off this limitation. |
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188 </para> |
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189 |
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190 </directive> |
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191 |
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192 |
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193 <directive name="proxy_pass"> |
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194 <syntax><value>address</value></syntax> |
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195 <default/> |
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196 <context>server</context> |
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197 |
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198 <para> |
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199 Sets the address of a proxied server. |
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200 The address can be specified as a domain name or IP address, |
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201 and a port: |
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202 <example> |
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203 proxy_pass localhost:12345; |
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204 </example> |
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205 or as a UNIX-domain socket path: |
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206 <example> |
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207 proxy_pass unix:/tmp/stream.socket; |
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208 </example> |
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209 </para> |
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210 |
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211 <para> |
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212 If a domain name resolves to several addresses, all of them will be |
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213 used in a round-robin fashion. |
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214 In addition, an address can be specified as a |
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215 <link doc="ngx_stream_upstream_module.xml">server group</link>. |
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216 </para> |
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217 |
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218 </directive> |
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219 |
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220 |
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221 <directive name="proxy_protocol"> |
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222 <syntax><literal>on</literal> | <literal>off</literal></syntax> |
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223 <default>off</default> |
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224 <context>stream</context> |
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225 <context>server</context> |
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226 <appeared-in>1.9.2</appeared-in> |
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227 |
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228 <para> |
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229 Enables the |
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230 <link url="http://www.haproxy.org/download/1.5/doc/proxy-protocol.txt">PROXY |
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231 protocol</link> for connections to a proxied server. |
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232 </para> |
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233 |
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234 </directive> |
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235 |
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236 |
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237 <directive name="proxy_responses"> |
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238 <syntax><value>number</value></syntax> |
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239 <default/> |
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240 <context>stream</context> |
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241 <context>server</context> |
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242 <appeared-in>1.9.13</appeared-in> |
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243 |
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244 <para> |
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245 Sets the number of datagrams expected from the proxied server |
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246 in response to the client request |
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247 if the <link doc="ngx_stream_core_module.xml" id="udp">UDP</link> |
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248 protocol is used. |
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249 By default, the number of datagrams is not limited: |
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250 the response datagrams will be sent |
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251 until the <link id="proxy_timeout"/> value expires. |
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252 </para> |
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253 |
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254 </directive> |
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255 |
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256 |
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257 <directive name="proxy_ssl"> |
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258 <syntax><literal>on</literal> | <literal>off</literal></syntax> |
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259 <default>off</default> |
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260 <context>stream</context> |
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261 <context>server</context> |
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262 |
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263 <para> |
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264 Enables the SSL/TLS protocol for connections to a proxied server. |
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265 </para> |
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266 |
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267 </directive> |
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268 |
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269 |
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270 <directive name="proxy_ssl_certificate"> |
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271 <syntax><value>file</value></syntax> |
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272 <default/> |
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273 <context>stream</context> |
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274 <context>server</context> |
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275 |
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276 <para> |
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277 Specifies a <value>file</value> with the certificate in the PEM format |
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278 used for authentication to a proxied server. |
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279 </para> |
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280 |
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281 </directive> |
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282 |
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283 |
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284 <directive name="proxy_ssl_certificate_key"> |
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285 <syntax><value>file</value></syntax> |
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286 <default/> |
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287 <context>stream</context> |
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288 <context>server</context> |
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289 |
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290 <para> |
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291 Specifies a <value>file</value> with the secret key in the PEM format |
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292 used for authentication to a proxied server. |
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293 </para> |
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294 |
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295 </directive> |
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296 |
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297 |
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298 <directive name="proxy_ssl_ciphers"> |
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299 <syntax><value>ciphers</value></syntax> |
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300 <default>DEFAULT</default> |
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301 <context>stream</context> |
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302 <context>server</context> |
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303 |
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304 <para> |
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305 Specifies the enabled ciphers for connections to a proxied server. |
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306 The ciphers are specified in the format understood by the OpenSSL library. |
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307 </para> |
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308 |
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309 <para> |
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310 The full list can be viewed using the |
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311 “<command>openssl ciphers</command>” command. |
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312 </para> |
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313 |
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314 </directive> |
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315 |
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316 |
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317 <directive name="proxy_ssl_crl"> |
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318 <syntax><value>file</value></syntax> |
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319 <default/> |
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320 <context>stream</context> |
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321 <context>server</context> |
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322 |
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323 <para> |
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324 Specifies a <value>file</value> with revoked certificates (CRL) |
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325 in the PEM format used to <link id="proxy_ssl_verify">verify</link> |
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326 the certificate of the proxied server. |
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327 </para> |
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328 |
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329 </directive> |
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330 |
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331 |
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332 <directive name="proxy_ssl_name"> |
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333 <syntax><value>name</value></syntax> |
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334 <default>host from proxy_pass</default> |
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335 <context>stream</context> |
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336 <context>server</context> |
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337 |
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338 <para> |
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339 Allows overriding the server name used to |
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340 <link id="proxy_ssl_verify">verify</link> |
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341 the certificate of the proxied server and to be |
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342 <link id="proxy_ssl_server_name">passed through SNI</link> |
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343 when establishing a connection with the proxied server. |
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344 </para> |
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345 |
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346 <para> |
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347 By default, the host part of the <link id="proxy_pass"/> address is used. |
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348 </para> |
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349 |
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350 </directive> |
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351 |
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352 |
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353 <directive name="proxy_ssl_password_file"> |
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354 <syntax><value>file</value></syntax> |
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355 <default/> |
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356 <context>stream</context> |
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357 <context>server</context> |
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358 |
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359 <para> |
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360 Specifies a <value>file</value> with passphrases for |
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361 <link id="proxy_ssl_certificate_key">secret keys</link> |
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362 where each passphrase is specified on a separate line. |
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363 Passphrases are tried in turn when loading the key. |
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364 </para> |
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365 |
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366 </directive> |
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|
367 |
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368 |
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369 <directive name="proxy_ssl_server_name"> |
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370 <syntax><literal>on</literal> | <literal>off</literal></syntax> |
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371 <default>off</default> |
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372 <context>stream</context> |
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373 <context>server</context> |
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374 |
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375 <para> |
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376 Enables or disables passing of the server name through |
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377 <link url="http://en.wikipedia.org/wiki/Server_Name_Indication">TLS |
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378 Server Name Indication extension</link> (SNI, RFC 6066) |
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379 when establishing a connection with the proxied server. |
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380 </para> |
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381 |
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382 </directive> |
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383 |
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384 |
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385 <directive name="proxy_ssl_session_reuse"> |
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386 <syntax><literal>on</literal> | <literal>off</literal></syntax> |
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387 <default>on</default> |
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388 <context>stream</context> |
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389 <context>server</context> |
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390 |
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391 <para> |
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392 Determines whether SSL sessions can be reused when working with |
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393 the proxied server. |
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394 If the errors |
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395 “<literal>SSL3_GET_FINISHED:digest check failed</literal>” |
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396 appear in the logs, try disabling session reuse. |
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|
397 </para> |
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|
398 |
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399 </directive> |
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|
400 |
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|
401 |
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402 <directive name="proxy_ssl_protocols"> |
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403 <syntax> |
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|
404 [<literal>SSLv2</literal>] |
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405 [<literal>SSLv3</literal>] |
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406 [<literal>TLSv1</literal>] |
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407 [<literal>TLSv1.1</literal>] |
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408 [<literal>TLSv1.2</literal>]</syntax> |
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409 <default>TLSv1 TLSv1.1 TLSv1.2</default> |
1450
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410 <context>stream</context> |
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411 <context>server</context> |
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|
412 |
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413 <para> |
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414 Enables the specified protocols for connections to a proxied server. |
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415 </para> |
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416 |
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417 </directive> |
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|
418 |
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419 |
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|
420 <directive name="proxy_ssl_trusted_certificate"> |
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421 <syntax><value>file</value></syntax> |
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422 <default/> |
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423 <context>stream</context> |
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424 <context>server</context> |
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|
425 |
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|
426 <para> |
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427 Specifies a <value>file</value> with trusted CA certificates in the PEM format |
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|
428 used to <link id="proxy_ssl_verify">verify</link> |
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|
429 the certificate of the proxied server. |
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|
430 </para> |
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|
431 |
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|
432 </directive> |
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|
433 |
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|
434 |
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|
435 <directive name="proxy_ssl_verify"> |
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436 <syntax><literal>on</literal> | <literal>off</literal></syntax> |
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|
437 <default>off</default> |
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|
438 <context>stream</context> |
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|
439 <context>server</context> |
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|
440 |
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|
441 <para> |
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|
442 Enables or disables verification of the proxied server certificate. |
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|
443 </para> |
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|
444 |
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|
445 </directive> |
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|
446 |
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|
447 |
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|
448 <directive name="proxy_ssl_verify_depth"> |
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449 <syntax><value>number</value></syntax> |
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|
450 <default>1</default> |
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|
451 <context>stream</context> |
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452 <context>server</context> |
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|
453 |
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|
454 <para> |
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|
455 Sets the verification depth in the proxied server certificates chain. |
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|
456 </para> |
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|
457 |
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|
458 </directive> |
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|
459 |
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|
460 |
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|
461 <directive name="proxy_timeout"> |
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|
462 <syntax><value>timeout</value></syntax> |
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|
463 <default>10m</default> |
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|
464 <context>stream</context> |
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|
465 <context>server</context> |
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|
466 |
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changeset
|
467 <para> |
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Updated the proxy_timeout directive for mail and stream.
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|
468 Sets the <value>timeout</value> between two successive |
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Updated the proxy_timeout directive for mail and stream.
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changeset
|
469 read or write operations on client or proxied server connections. |
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Updated the proxy_timeout directive for mail and stream.
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|
470 If no data is transmitted within this time, the connection is closed. |
1367
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|
471 </para> |
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|
472 |
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|
473 </directive> |
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diff
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|
474 |
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diff
changeset
|
475 |
1535
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Renamed proxy_downstream_limit_rate and proxy_upstream_limit_rate directives.
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|
476 <directive name="proxy_upload_rate"> |
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Renamed proxy_downstream_limit_rate and proxy_upstream_limit_rate directives.
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|
477 <syntax><value>rate</value></syntax> |
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Renamed proxy_downstream_limit_rate and proxy_upstream_limit_rate directives.
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|
478 <default>0</default> |
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Renamed proxy_downstream_limit_rate and proxy_upstream_limit_rate directives.
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|
479 <context>stream</context> |
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Renamed proxy_downstream_limit_rate and proxy_upstream_limit_rate directives.
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|
480 <context>server</context> |
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Renamed proxy_downstream_limit_rate and proxy_upstream_limit_rate directives.
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changeset
|
481 <appeared-in>1.9.3</appeared-in> |
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Renamed proxy_downstream_limit_rate and proxy_upstream_limit_rate directives.
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482 |
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483 <para> |
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484 Limits the speed of reading the data from the client. |
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485 The <value>rate</value> is specified in bytes per second. |
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486 The zero value disables rate limiting. |
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487 The limit is set per a connection, so if the client simultaneously opens |
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488 two connections, |
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489 the overall rate will be twice as much as the specified limit. |
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490 </para> |
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491 |
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492 </directive> |
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493 |
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494 </section> |
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495 |
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496 </module> |