This is the command fdnsnamep 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
PROGRAM:
NAME
fdnsnamep - resolve an IPv4 or IPv6 address to a hostname with paranoid checking
SYNOPSIS
fdnsname <IP address>
DESCRIPTION
fdnsname will attempt to look up a single hostname for IP address (which is an IPv4
address in dotted-quad format or an IPv6 address in colon-seperated format). If one is
found, the program checks to make sure that the hostname has a corresponding A or AAAA
record pointing back to the supplied IP. If so, the hostname is printed to standard
output and the program exits with return code 0. If the paranoid check fails, nothing is
printed and the program exits with return code 3. If no hostname is found, nothing is
printed and the program exits with return code 1.
Use fdnsnamep online using onworks.net services