Mercurial > hg > nginx-site
annotate xml/en/docs/stream/ngx_stream_ssl_module.xml @ 1450:f5b5eefc43cb
Updated commercial docs for the upcoming release.
author | Ruslan Ermilov <ru@nginx.com> |
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date | Thu, 09 Apr 2015 19:18:54 +0300 |
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children | acba294382d6 |
rev | line source |
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1450
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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_ssl_module" |
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10 link="/en/docs/stream/ngx_stream_ssl_module.html" |
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11 lang="en" |
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12 rev="1"> |
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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_ssl_module</literal> module (1.7.10) |
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18 provides the necessary support for a stream proxy server to work with |
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19 the SSL/TLS protocol. |
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20 </para> |
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21 |
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22 <para> |
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23 <note> |
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24 This module is available as part of our |
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25 <commercial_version>commercial subscription</commercial_version>. |
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26 </note> |
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27 </para> |
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28 |
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29 </section> |
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30 |
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31 |
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32 <section id="directives" name="Directives"> |
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33 |
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34 <directive name="ssl_certificate"> |
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35 <syntax><value>file</value></syntax> |
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36 <default/> |
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37 <context>stream</context> |
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38 <context>server</context> |
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39 |
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40 <para> |
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41 Specifies a file with the certificate in the PEM format for the given |
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42 server. |
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43 If intermediate certificates should be specified in addition to a primary |
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44 certificate, they should be specified in the same file in the following |
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45 order: the primary certificate comes first, then the intermediate certificates. |
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46 A secret key in the PEM format may be placed in the same file. |
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47 </para> |
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48 |
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49 </directive> |
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50 |
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51 |
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52 <directive name="ssl_certificate_key"> |
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53 <syntax><value>file</value></syntax> |
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54 <default/> |
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55 <context>stream</context> |
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56 <context>server</context> |
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57 |
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58 <para> |
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59 Specifies a file with the secret key in the PEM format for the given |
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60 server. |
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61 </para> |
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62 |
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63 </directive> |
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64 |
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65 |
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66 <directive name="ssl_ciphers"> |
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67 <syntax><value>ciphers</value></syntax> |
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68 <default>HIGH:!aNULL:!MD5</default> |
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69 <context>stream</context> |
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70 <context>server</context> |
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71 |
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72 <para> |
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73 Specifies the enabled ciphers. |
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74 The ciphers are specified in the format understood by the |
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75 OpenSSL library, for example: |
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76 <example> |
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77 ssl_ciphers ALL:!aNULL:!EXPORT56:RC4+RSA:+HIGH:+MEDIUM:+LOW:+SSLv2:+EXP; |
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78 </example> |
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79 </para> |
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80 |
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81 <para> |
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82 The full list can be viewed using the |
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83 “<command>openssl ciphers</command>” command. |
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84 </para> |
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85 |
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86 </directive> |
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87 |
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88 |
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89 <directive name="ssl_dhparam"> |
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90 <syntax><value>file</value></syntax> |
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91 <default/> |
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92 <context>stream</context> |
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93 <context>server</context> |
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94 |
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95 <para> |
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96 Specifies a <value>file</value> with DH parameters for EDH ciphers. |
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97 </para> |
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98 |
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99 </directive> |
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100 |
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101 |
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102 <directive name="ssl_ecdh_curve"> |
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103 <syntax><value>curve</value></syntax> |
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104 <default>prime256v1</default> |
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105 <context>stream</context> |
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106 <context>server</context> |
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107 |
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108 <para> |
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109 Specifies a <value>curve</value> for ECDHE ciphers. |
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110 </para> |
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111 |
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112 </directive> |
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113 |
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114 |
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115 <directive name="ssl_handshake_timeout"> |
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116 <syntax><value>time</value></syntax> |
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117 <default>60s</default> |
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118 <context>stream</context> |
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119 <context>server</context> |
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120 |
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121 <para> |
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122 Specifies a timeout for the SSL handshake to complete. |
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123 </para> |
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124 |
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125 </directive> |
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126 |
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127 |
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128 <directive name="ssl_password_file"> |
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129 <syntax><value>file</value></syntax> |
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130 <default/> |
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131 <context>stream</context> |
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132 <context>server</context> |
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133 |
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134 <para> |
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135 Specifies a <value>file</value> with passphrases for |
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136 <link id="ssl_certificate_key">secret keys</link> |
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137 where each passphrase is specified on a separate line. |
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138 Passphrases are tried in turn when loading the key. |
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139 </para> |
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140 |
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141 <para> |
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142 Example: |
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143 <example> |
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144 stream { |
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145 ssl_password_file /etc/keys/global.pass; |
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146 ... |
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147 |
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148 server { |
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149 listen 127.0.0.1:12345; |
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150 ssl_certificate_key /etc/keys/first.key; |
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151 } |
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152 |
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153 server { |
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154 listen 127.0.0.1:12346; |
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155 |
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156 # named pipe can also be used instead of a file |
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157 ssl_password_file /etc/keys/fifo; |
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158 ssl_certificate_key /etc/keys/second.key; |
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159 } |
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160 } |
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161 </example> |
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162 </para> |
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163 |
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164 </directive> |
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165 |
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166 |
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167 <directive name="ssl_prefer_server_ciphers"> |
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168 <syntax><literal>on</literal> | <literal>off</literal></syntax> |
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169 <default>off</default> |
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170 <context>stream</context> |
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171 <context>server</context> |
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172 |
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173 <para> |
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174 Specifies that server ciphers should be preferred over client ciphers |
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175 when the SSLv3 and TLS protocols are used. |
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176 </para> |
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177 |
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178 </directive> |
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179 |
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180 |
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181 <directive name="ssl_protocols"> |
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182 <syntax> |
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183 [<literal>SSLv2</literal>] |
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184 [<literal>SSLv3</literal>] |
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185 [<literal>TLSv1</literal>] |
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186 [<literal>TLSv1.1</literal>] |
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187 [<literal>TLSv1.2</literal>]</syntax> |
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188 <default>SSLv3 TLSv1 TLSv1.1 TLSv1.2</default> |
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189 <context>stream</context> |
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190 <context>server</context> |
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191 |
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192 <para> |
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193 Enables the specified protocols. |
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194 The <literal>TLSv1.1</literal> and <literal>TLSv1.2</literal> parameters work |
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195 only when the OpenSSL library of version 1.0.1 or higher is used. |
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196 </para> |
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197 |
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198 </directive> |
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199 |
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200 |
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201 <directive name="ssl_session_cache"> |
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202 <syntax> |
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203 <literal>off</literal> | |
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204 <literal>none</literal> | |
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205 [<literal>builtin</literal>[:<value>size</value>]] |
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206 [<literal>shared</literal>:<value>name</value>:<value>size</value>]</syntax> |
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207 <default>none</default> |
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208 <context>stream</context> |
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209 <context>server</context> |
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210 |
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211 <para> |
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212 Sets the types and sizes of caches that store session parameters. |
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213 A cache can be of any of the following types: |
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214 <list type="tag"> |
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215 |
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216 <tag-name><literal>off</literal></tag-name> |
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217 <tag-desc> |
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218 the use of a session cache is strictly prohibited: |
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219 nginx explicitly tells a client that sessions may not be reused. |
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220 </tag-desc> |
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221 |
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222 <tag-name><literal>none</literal></tag-name> |
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223 <tag-desc> |
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224 the use of a session cache is gently disallowed: |
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225 nginx tells a client that sessions may be reused, but does not |
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226 actually store session parameters in the cache. |
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227 </tag-desc> |
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228 |
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229 <tag-name><literal>builtin</literal></tag-name> |
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230 <tag-desc> |
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231 a cache built in OpenSSL; used by one worker process only. |
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232 The cache size is specified in sessions. |
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233 If size is not given, it is equal to 20480 sessions. |
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234 Use of the built-in cache can cause memory fragmentation. |
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235 </tag-desc> |
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236 |
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237 <tag-name><literal>shared</literal></tag-name> |
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238 <tag-desc> |
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239 a cache shared between all worker processes. |
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240 The cache size is specified in bytes; one megabyte can store |
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241 about 4000 sessions. |
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242 Each shared cache should have an arbitrary name. |
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243 A cache with the same name can be used in several |
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244 servers. |
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245 </tag-desc> |
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246 |
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247 </list> |
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248 </para> |
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249 |
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250 <para> |
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251 Both cache types can be used simultaneously, for example: |
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252 <example> |
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253 ssl_session_cache builtin:1000 shared:SSL:10m; |
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254 </example> |
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255 but using only shared cache without the built-in cache should |
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256 be more efficient. |
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257 </para> |
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258 |
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259 </directive> |
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260 |
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261 |
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262 <directive name="ssl_session_ticket_key"> |
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263 <syntax><value>file</value></syntax> |
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264 <default/> |
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265 <context>stream</context> |
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266 <context>server</context> |
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267 |
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268 <para> |
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269 Sets a <value>file</value> with the secret key used to encrypt |
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270 and decrypt TLS session tickets. |
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271 The directive is necessary if the same key has to be shared between |
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272 multiple servers. |
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273 By default, a randomly generated key is used. |
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274 </para> |
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275 |
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276 <para> |
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277 If several keys are specified, only the first key is |
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278 used to encrypt TLS session tickets. |
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279 This allows configuring key rotation, for example: |
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280 <example> |
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281 ssl_session_ticket_key current.key; |
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282 ssl_session_ticket_key previous.key; |
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283 </example> |
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284 </para> |
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285 |
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286 <para> |
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287 The <value>file</value> must contain 48 bytes of random data and can |
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288 be created using the following command: |
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289 <example> |
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290 openssl rand 48 > ticket.key |
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291 </example> |
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292 </para> |
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293 |
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294 </directive> |
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295 |
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296 |
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297 <directive name="ssl_session_tickets"> |
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298 <syntax><literal>on</literal> | <literal>off</literal></syntax> |
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299 <default>on</default> |
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300 <context>stream</context> |
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301 <context>server</context> |
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302 |
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303 <para> |
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304 Enables or disables session resumption through |
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305 <link url="http://tools.ietf.org/html/rfc5077">TLS session tickets</link>. |
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306 </para> |
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307 |
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308 </directive> |
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309 |
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310 |
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311 <directive name="ssl_session_timeout"> |
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312 <syntax><value>time</value></syntax> |
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313 <default>5m</default> |
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314 <context>stream</context> |
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315 <context>server</context> |
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316 |
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317 <para> |
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318 Specifies a time during which a client may reuse the |
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319 session parameters stored in a cache. |
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320 </para> |
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321 |
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322 </directive> |
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323 |
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324 </section> |
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325 |
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326 </module> |