Sep 30, 2014 09:46 PM|markfitzme|LINK
You can't. Not all IP addresses will resolve to a distinct host name. Keep in mind, this is a host name assigned by an ISP and not the actual computer name and it will change whenever their DHCP renew hits. Also keep in mind this can be a slow operation
as the DNS server may not be the fastest to respond so you will want to use this sparingly.