multi-resolver: 21 Released (SourceForge)
multi-resolver is a parallel DNS resolver utilizing the POE framework. It is a single PERL script, which reads query tuples from <STDIN> and prints RDF triplets to <STDOUT>. This is a second iteration of this solution. It used to be a self-contained recursive script. Now it implements a data-flow architecture, where an external program implements the program recursion logic."
