RubyDNS

RubyDNS can listen to DNS queries, intercept them, perform various operations on the query, forward or respond to it.

Along with the core RubyDNS server, a stand-alone asynchronous DNS resolver is also included, which can be forked and embedded in remote applications without requiring the entire RubyDNS project.

This small utility provides the basic DNS functionality without all the other code that deals with query processing, verification, and testing.

The project's documentation is included with RubyDNS, since it may be a little hard for some users to install and get going on their own.

Samuel Williams, the author of RubyDNS also provides a video introduction of his tool:

What is new in this release:

• Added log_bad_messages example in test.

What is new in version 0.6.0:

• No longer supports Ruby 1.8.7.