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author | Yaroslav Zhuravlev <yar@nginx.com> |
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date | Wed, 15 Feb 2017 23:17:00 +0300 |
parents | 59d1f512c3a0 |
children | 9f7e12cf974f |
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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_preread_module" |
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10 link="/en/docs/stream/ngx_stream_ssl_preread_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_preread_module</literal> module (1.11.5) allows |
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18 extracting information from the |
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19 <link url="https://tools.ietf.org/html/rfc5246#section-7.4.1.2">ClientHello</link> |
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20 message without terminating SSL/TLS, |
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21 for example, the sever name requested through |
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22 <link url="https://tools.ietf.org/html/rfc6066#section-3">SNI</link>. |
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23 This module is not built by default, it should be enabled with the |
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24 <literal>--with-stream_ssl_preread_module</literal> |
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25 configuration parameter. |
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26 </para> |
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27 |
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28 </section> |
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29 |
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30 |
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31 <section id="example" name="Example Configuration"> |
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32 |
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33 <para> |
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34 <example> |
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35 map $ssl_preread_server_name $name { |
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36 backend.example.com backend; |
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37 default backend2; |
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38 } |
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39 |
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40 upstream backend { |
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41 server 192.168.0.1:12345; |
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42 server 192.168.0.2:12345; |
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43 } |
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44 |
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45 upstream backend2 { |
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46 server 192.168.0.3:12345; |
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47 server 192.168.0.4:12345; |
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48 } |
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49 |
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50 server { |
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51 listen 12346; |
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52 proxy_pass $name; |
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53 ssl_preread on; |
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54 } |
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55 </example> |
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56 |
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57 </para> |
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58 |
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59 </section> |
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60 |
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61 |
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62 <section id="directives" name="Directives"> |
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63 |
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64 <directive name="ssl_preread"> |
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65 <syntax><literal>on</literal> | <literal>off</literal></syntax> |
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66 <default>off</default> |
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67 <context>stream</context> |
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68 <context>server</context> |
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69 |
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70 <para> |
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71 Enables extracting information from the ClientHello message at |
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72 the <link doc="stream_processing.xml" id="preread_phase">preread</link> phase. |
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73 </para> |
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74 |
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75 </directive> |
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76 |
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77 </section> |
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78 |
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79 |
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80 <section id="variables" name="Embedded Variables"> |
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81 |
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82 <para> |
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83 <list type="tag"> |
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84 |
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85 <tag-name id="var_ssl_preread_server_name"><var>$ssl_preread_server_name</var></tag-name> |
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86 <tag-desc> |
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87 returns the server name requested through SNI |
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88 </tag-desc> |
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89 |
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90 </list> |
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91 </para> |
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92 |
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93 </section> |
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94 |
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95 </module> |