A reverse name resolution zone file is used to translate an IP address in a particular namespace into a fully qualified domain name (FQDN).
If this file has been configured on a name server, it becomes possible to find a hostname from an IP address.
This note shows how to get a hostname from an IP address from the command line in Windows, Linux or MacOS using the nslookup command.
Cool Tip: How to setup a reverse name resolution! Read more →
Find Hostname from IP
Execute the nslookup command as follows from a terminal in Linux/MacOS or from a command prompt (CMD or PowerShell) in Windows to find the hostname by IP:
$ nslookup 192.168.0.15
- sample output -
Server: router.net.infra
Address: 192.168.0.1
Name: my-box-hostname.net.infra
Address: 192.168.0.15
The command above performs the reverse lookup and converts the IP address to hostname by querying the name server for the 15.0.168.192.in-addr.arpa record.