Download

dnstraverse is a ruby gem and available on github.

# gem install dnstraverse
Fetching: dnsruby-1.52.gem (100%)
Fetching: dnstraverse-0.1.0.gem (100%)
Successfully installed dnsruby-1.52
Successfully installed dnstraverse-0.1.0
2 gems installed
Installing ri documentation for dnsruby-1.52...
Installing ri documentation for dnstraverse-0.1.0...
Installing RDoc documentation for dnsruby-1.52...
Installing RDoc documentation for dnstraverse-0.1.0...
# PATH=$PATH:/var/lib/gems/1.8/bin
# export PATH
# dnstraverse www.google.com

Prerequisites