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annotate xml/en/docs/debugging_log.xml @ 516:8e1356bd281a

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Documented the "debug_connection" directive.
author Ruslan Ermilov <ru@nginx.com>
date Mon, 14 May 2012 11:29:39 +0000
parents 4c6d2c614d2c
children be54c443235a
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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9d544687d02c Fixed DOCTYPE declaration.
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1 <!DOCTYPE article SYSTEM "../../../dtd/article.dtd">
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2
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3 <article name="A debugging log"
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4 link="/en/docs/debugging_log.html"
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5 lang="en">
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6
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7
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8 <section>
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9
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10 <para>
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11 To enable a debugging log, nginx needs to be configured to support
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12 debugging during the build:
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13
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14 <programlisting>
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15 ./configure --with-debug ...
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16 </programlisting>
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17
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18 Then the <literal>debug</literal> level should be set with the
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19 <link doc="ngx_core_module.xml" id="error_log"/> directive:
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20
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21 <programlisting>
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22 error_log /path/to/log debug;
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23 </programlisting>
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24
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25 The nginx binary version for Windows is always built with the debugging log
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26 support, so only setting the <literal>debug</literal> level will suffice.
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27 </para>
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28
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29 <para>
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30 Note that redefining the log without also specifying the
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31 <literal>debug</literal>
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32 level will disable the debugging log.
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33 In the example below, redefining the log on the
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34 <link doc="http/ngx_http_core_module.xml" id="server"/>
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35 level disables the debugging log for this server:
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36 <programlisting>
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37 error_log /path/to/log debug;
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38
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39 http {
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40 server {
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41 error_log /path/to/log;
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42 ...
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43 </programlisting>
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44 To avoid this, either the line redefining the log should be
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45 commented out, or the <literal>debug</literal> level specification should
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46 also be added:
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47 <programlisting>
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48 error_log /path/to/log debug;
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49
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50 http {
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51 server {
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52 error_log /path/to/log debug;
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53 ...
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54 </programlisting>
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55 </para>
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56
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57 <para>
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58 It is also possible to enable the debugging log for
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59 <link doc="ngx_core_module.xml" id="debug_connection">selected
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60 client addresses</link> only:
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61
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62 <programlisting>
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63 error_log /path/to/log;
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65 events {
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66 debug_connection 192.168.1.1;
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67 debug_connection 192.168.10.0/24;
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68 }
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69 </programlisting>
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70 </para>
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71
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72 </section>
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73
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74 </article>