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The DNSJava library requires running on the SUN JVM.
If you use Apache ServiceMix or Apache Karaf, you'll need to adjust the etc/jre.properties file, to add sun.net.spi.nameservice to the list of Java platform packages exported. The server will need restarting before this change takes effect.

|http://www.xbill.org/dnsjava/].
The component offers the following operations:
- ip, to resolve a domain by its ip
- lookup, to lookup information about the domain
- dig, to run DNS queries

Maven users will need to add the following dependency to their {{pom.xml}} for this component:
{code:xml}
<dependency>
    <groupId>org.apache.camel</groupId>
    <artifactId>camel-dns</artifactId>
    <version>x.x.x</version>
    <!-- use the same version as your Camel core version -->
</dependency>
{code}

h3. URI format

The URI scheme for a DNS component is 

as follows

{code}
dns://operation
{code}

This component only supports producers.

h3. Options

None.

h3. Headers

{div:class=confluenceTableSmall}
|| Header || Type || Operations || Description ||
| dns.domain | String | ip | The domain name. Mandatory. |
| dns.name | String | lookup | The name to lookup. Mandatory. |
| dns.type | - |  lookup, dig | The type of the lookup. Should match the values of {{[?options]

 | String | dig | The query itself. Mandatory. |
| dns.server | String | dig | The server in particular for the query. If none is given, the default one specified by the OS will be used. Optional. |
{div}

h3. Examples

h4. IP lookup
{code:xml}
        <route id="IPCheck">
            <from uri="direct:start"/>
            <to uri="dns:ip"/>
        </route>
{code}

}}.

h4. DNS lookup
{code:xml}
        <route id="IPCheck">
            <from uri="direct:start"/>
            <to uri="dns:lookup"/>
        </route>
{code}

{code:xml}
        <route id="IPCheck">
            <from uri="direct:start"/>
            <to uri="dns:dig"/>
        </route>
{code}