Nslookup is a network administration command-line tool used widely by system and network administrators for querying the Domain Name System(DNS) to obtain domain name or IP address mapping for a specific DNS record. Resolver is an open source application designed to help you perform a reverse DNS Lookup for a single IP address and for an IP range. You can also import IPs from a text file and the clipboard. It basically resolves a specified or a number of IPs, which makes it a GUI (also available in portable form) for the Nslookup command line.
After launching resolver, enter an IP for reverse DNS lookup and click Resolve Single IP.
This will tell you the DNS server name against the provided IP address. Some people keep logs in their firewall to check which IPs might be attempting to collect information about their computer. These can later investigated from the available logs by using the Nslookup command. In this case you can simply check these IPs with Resolver.
You can enter an IP range, in order to perform a reverse DNS server lookup. If you wish to check a number of IPs simultaneously, you can type them in a text file and import the data via the browse button.
It works on
- Windows XP
- Windows Vista
- Windows 7