1 <?xml version="1.0" encoding="utf-8"?>

     2 <!-- Copyright (c) 2007-2010 Nokia Corporation and/or its subsidiary(-ies) All rights reserved. -->

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     4 "Eclipse Public License v1.0" which accompanies this distribution, 

     5 and is available at the URL "http://www.eclipse.org/legal/epl-v10.html". -->

     6 <!-- Initial Contributors:

     7     Nokia Corporation - initial contribution.

     8 Contributors: 

     9 -->

    10 <!DOCTYPE task

    11   PUBLIC "-//OASIS//DTD DITA Task//EN" "task.dtd">

    12 <task id="GUID-6F6AEFB5-4D0E-5324-A3CD-1E533002DB45" xml:lang="en"><title>How

    13 to Start the DNS Proxy Server</title><shortdesc>Describes how to start the DNS Proxy server. </shortdesc><prolog><metadata><keywords/></metadata></prolog><taskbody>

    14 <context id="GUID-72ED7B81-4477-449D-B9DF-FC47D908B81E"><p>The DNS Proxy server starts up and shuts down with the DHCP server.

    15 If an IAP is configured to start the DHCP server, it starts the DHCP server

    16 which in turn starts the DNS Proxy server. </p><p><note> The DHCP server and

    17 DNS Proxy server cannot be started on multiple interfaces and there is no

    18 independent configuration for the DNS Proxy server in the CommsDB file.</note> </p><p>The

    19 high level steps to start the DNS Proxy server are shown here: </p> </context>

    20 <steps id="GUID-6CEAACE0-66C1-5D6E-A03F-8DAE5991F71C">

    21 <step id="GUID-591D5A6E-7508-5861-B823-674F40F1EB5B"><cmd/>

    22 <info>DHCP server starts the DNS Proxy server on DHCP server startup. </info>

    23 <info>DHCP server starts when the interface configured to start DHCP server

    24 in CommsDB is started by some application. </info>

    25 </step>

    26 <step id="GUID-25B1C614-AADF-5204-9053-C71A35BE4A74"><cmd/>

    27 <info>DNS Proxy server on start up reads the initialization information from<filepath> resolver.ini</filepath> file. </info>

    28 <info> Note: The DNS Proxy server initialization settings are stored in the <filepath>resolver.ini</filepath> file. </info>

    29 </step>

    30 <step id="GUID-716C280F-DB08-5E1B-887D-3BEC8F2B1E48"><cmd/>

    31 <info>DNS Proxy server gets the connection information from the DHCP server

    32 on startup. </info>

    33 <info> Note: The <filepath>resolver.ini</filepath> file provides the downlink

    34 connection information on which the DNS Proxy server starts receiving DNS

    35 requests. </info>

    36 </step>

    37 <step id="GUID-4811BFD0-2EEA-5D83-A83E-1CAB4B220D36"><cmd/>

    38 <info>DNS Proxy server opens an explicit socket on the connection and starts

    39 receiving DNS requests from the standard DNS port 53. </info>

    40 </step>

    41 <step id="GUID-01DDE9E3-02C9-57EF-A4FB-F69DC1CC3992"><cmd/>

    42 <info>DHCP server reads and obtains the hostname and suffix information from

    43 CommsDB and updates the DNS Proxy server with the required information. </info>

    44 </step>

    45 <step id="GUID-A895F232-DCE4-5AB7-8E45-1407D4F382FE"><cmd/>

    46 <info>DHCP server updates the DNS Proxy server database for each incoming

    47 host. </info>

    48 </step>

    49 </steps>

    50 <result id="GUID-3C2D6ACD-99B0-4E06-B2BE-86FD1953B446"><p>DNS Proxy server is active and is ready to resolve local names

    51 and standard internet domain names. </p> </result>

    52 </taskbody><related-links>

    53 <link href="GUID-28D13F63-9D72-5D70-BE81-3B4E54B3A8C1.dita"><linktext>DNS Proxy

    54 Server                 Initialization Settings</linktext></link>

    55 </related-links></task>