DNS

Available as of Camel 2.7

This is an additional component for Camel to run DNS queries, using DNSJava. The component is a thin layer on top of 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

Requires SUN JVM

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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.

Maven users will need to add the following dependency to their pom.xml for this component:

URI format

The URI scheme for a DNS component is as follows

This component only supports producers.

Options

None.

Headers

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 org.xbill.dns.Type. Optional.

    dns.class

      lookup, dig

      he DNS class of the lookup. Should match the values of org.xbill.dns.DClass. Optional.

      dns.query

      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.

      Examples

      IP lookup

      This looks up a domain's IP. For example, www.example.com resolves to 192.0.32.10.
      The IP address to lookup must be provided in the header with key "dns.domain".

      DNS lookup

      This returns a set of DNS records associated with a domain.
      The name to lookup must be provided in the header with key "dns.name".

      DNS Dig

      Dig is a Unix command-line utility to run DNS queries.

      The query must be provided in the header with key "dns.query".

      See Also

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