Collapse all Symbian^3 Application Developer Library

DNS Proxy Server Initialization Settings

This topics describes the initialization settings of the DNS Proxy server.

DNS Proxy server on start up reads the initialization information from resolver.ini file which stores the initialization settings. This provides the connection information on which the DNS Proxy server starts receiving DNS requests.

The resolver.ini file is located in the following folder: z:\private\200215f1\ . If there is no file or if some values are missing then the DNS proxy starts with the default values.

Initialization setting parameters

The following table lists the parameters, description and default values present in the .ini file.

Parameters	Description	Default values
sessioncount	This value represents the maximum number of resolver sessions that can handle the incoming queries.	1
retries	This value represents the number of retries made for resolving the query.	2
queuesize	This value represents the maximum queries that can be handled by the DNS Proxy server. Queries are dropped if the queue is full.	20
TTL	Time to Live field. This value represents the validity period for the local query response measured in seconds.	21600 seconds
dbsize	This value represents the maximum size of the DNS Proxy server non-persistent DB. This is an optional parameter to prevent DoS attacks.	10
timerval	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.	5 seconds
serialnum	This value is stored but is not used.	10000
refreshtim	This value is stored but is not used.	900 seconds
retrytime	This value is stored but is not used.	600 seconds
expiretime	This value is stored but is not used.	300 seconds

Note: All the parameters in the .ini file are optional.

DNS Proxy initialization settings example

The following is an example DNS Proxy section from a resolver.ini file:

       
        
       
       [proxyresolver]
sessioncount= 5
retries= 2
queuesize= 20
TTL= 21600
dbsize= 10
timerval= 5
serialnum= 10000
refreshtim= 900
retrytime= 600
expiretime= 86400

Parent topic: Reference