| 1. Also known as reverse resolving and rDNS, Reverse DNS lookup is the process of looking up an IP address to resolve a hostname instead of the other way around. This technique is often used to help diagnose networking related issues or to determine where network data is going. Users running Microsoft Windows could use the nslookup command to perform a reverse lookup on an IP address and Linux users can use the host command on nslookup.
- Entering an IP address in our free is it up online utility will also perform a reverse lookup on that IP address and also see if it's up.
2. A reverse lookup is also a method of locating an address from a phone number. Click here to pull up a search for sites offering phone number reverse lookups. Also see: DNS, Nameserver, Network definitions | |
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