This is Perl module DBIx::DSN::Resolver. INSTALLATION DBIx::DSN::Resolver installation is straightforward. If your CPAN shell is set up, you should just be able to do % cpan DBIx::DSN::Resolver Download it, unpack it, then build it as per the usual: % perl Makefile.PL % make && make test Then install it: % make install DOCUMENTATION DBIx::DSN::Resolver documentation is available as in POD. So you can do: % perldoc DBIx::DSN::Resolver to read the documentation online with your favorite pager. Masahiro Nagano