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<concept id="GUID-28D13F63-9D72-5D70-BE81-3B4E54B3A8C1" xml:lang="en"><title>DNS

Proxy Server Initialization Settings </title><shortdesc>This topics describes the initialization settings of the DNS Proxy

server. </shortdesc><prolog><metadata><keywords/></metadata></prolog><conbody>

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

which stores the initialization settings. This provides the connection information

on which the DNS Proxy server starts receiving DNS requests. </p>

<p>The <filepath>resolver.ini</filepath> file is located in the following

folder: <filepath>z:\private\200215f1\</filepath>. If there is no file or

if some values are missing then the DNS proxy starts with the default values. </p>

<section id="GUID-337E6F01-A404-4DEA-8914-D8FDED392474"><title>Initialization setting parameters</title> <p>The following

table lists the parameters, description and default values present in the <filepath>.ini</filepath> file. </p> <table id="GUID-C8AEF62F-6FE4-5C3B-B987-631549540716">

<tgroup cols="3"><colspec colname="col0"/><colspec colname="col1"/><colspec colname="col2"/>

<thead>

<row>

<entry>Parameters</entry>

<entry>Description</entry>

<entry>Default values</entry>

</row>

</thead>

<tbody>

<row>

<entry><p>sessioncount </p> </entry>

<entry><p>This value represents the maximum number of resolver sessions that

can handle the incoming queries. </p> </entry>

<entry><p>1</p> </entry>

</row>

<row>

<entry><p>retries </p> </entry>

<entry><p>This value represents the number of retries made for resolving the

query. </p> </entry>

<entry><p>2</p> </entry>

</row>

<row>

<entry><p>queuesize </p> </entry>

<entry><p>This value represents the maximum queries that can be handled by

the DNS Proxy server. Queries are dropped if the queue is full. </p> </entry>

<entry><p>20 </p> </entry>

</row>

<row>

<entry><p>TTL </p> </entry>

<entry><p>Time to Live field. This value represents the validity period for

the local query response measured in seconds. </p> </entry>

<entry><p>21600 seconds </p> </entry>

</row>

<row>

<entry><p>dbsize </p> </entry>

<entry><p>This value represents the maximum size of the DNS Proxy server non-persistent

DB. This is an optional parameter to prevent DoS attacks. </p> </entry>

<entry><p>10 </p> </entry>

</row>

<row>

<entry><p>timerval </p> </entry>

<entry><p>This value represents the timer value for the response timer, that

is, the number of seconds the DNS Proxy server waits for the response before

timing out. </p> </entry>

<entry><p>5 seconds </p> </entry>

</row>

<row>

<entry><p>serialnum </p> </entry>

<entry><p>This value is stored but is not used. </p> </entry>

<entry><p>10000 </p> </entry>

</row>

<row>

<entry><p>refreshtim </p> </entry>

<entry><p>This value is stored but is not used. </p> </entry>

<entry><p>900 seconds </p> </entry>

</row>

<row>

<entry><p>retrytime </p> </entry>

<entry><p>This value is stored but is not used. </p> </entry>

<entry><p>600 seconds </p> </entry>

</row>

<row>

<entry><p>expiretime </p> </entry>

<entry><p>This value is stored but is not used. </p> </entry>

<entry><p>300 seconds </p> </entry>

</row>

</tbody>

</tgroup>

</table> <p> <note>All the parameters in the <filepath>.ini</filepath> file

are optional. </note></p> </section>

<example><title>DNS Proxy initialization settings example</title> <p>The following

is an example DNS Proxy section from a <b>resolver.ini</b> file: </p> <codeblock id="GUID-4EFFA9AE-80AA-5C84-BFB5-2202147DB256" xml:space="preserve">

[proxyresolver]

sessioncount= 5

retries= 2

queuesize= 20

TTL= 21600

dbsize= 10

timerval= 5

serialnum= 10000

refreshtim= 900

retrytime= 600

expiretime= 86400

</codeblock> </example>

</conbody></concept>