This is the command fdnsip6 that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator
fdnsip6 - resolve a hostname to an IPv6 address
fdnsip6 will attempt to look up a single IPv6 address for hostname. If one is found, it
is printed to standard output and the program exits with return code 0. If not, nothing
is printed and the program exits with return code 1.
Use fdnsip6 online using onworks.net services