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- Last Review: June 13, 2012

Home > NetScanTools Pro > Technical Details > DNS Tools - Batch Queries

DNS Tools - Batch Queries Description

DNS Tools - Batch Queries is a multifunction tool that allows you to lookup or resolve IPv4 addresses to hostnames, hostnames to IP addresses, verify and audit IPv4 address/hostname mappings.

Two modes of operation are possible: the first uses the default DNS servers assigned to your computer; the second uses a DNS that you have specified.

Batch Query Tool for looking up a large number of IP addresses or hostnames. Create a list of hostnames or IP addresses to be resolved using several different methods including manual entry, IP range generation, or import of a text file (see image #2 below). Pressing the Lookup IP|Hostname button initiates a parallel, multi-threaded action of resolving IP addresses to hostnames or vice versa using your default DNS. Upon completion of the DNS resolving process, we display the country that is assigned or allocated the IPv4 address. See image #1 below.

DNS Verify Tool. This tool takes a list of IPv4 addresses, reverse resolves them as a batch to hostnames using your default DNS, then takes each hostname and resolves it back to an IPv4 address. IP address mismatches are shown in red as in the sample image #2 below. This important feature allows you to check a DNS for errors. This feature runs rapidly over the whole list of IP addresses. There is a similar feature on the DNS Tools - Advanced tool that processes one IP address at a time instead of in batch mode.

Screenshot - Batch Lookups of IP addresses to hostnames including country assignment

Screenshot of DNS Verify Results - DNS verify failures are noted in the left column

 

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