Purpose of the DNS Tools - Core

This toolset provides methods for accessing and reviewing many types of DNS records from any accessible DNS.

About DNS Tools - Core

DNS Tools - Core are a collection of powerful tools for querying DNS servers. Use the tools to troubleshoot DNS settings or determine other name resolution problems. This is a core set of DNS tools that let you see resource records stored in DNS. Currently only IPv4 connections to DNS are possible, but IPv6 (AAAA) records can be retrieved.


Related Tool Links: DNS Tools - Advanced

Who Am I? Screenshot

Who Am I Screenshot

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A core set of DNS Tools

Simple Query IPv4/IPv6

Two tools that use your operating system's built-in resolver to do basic IPv4 or IPv6 DNS queries. It accepts an IPv4/IPv6 address or hostname and queries your default name servers for the resolution. Your operating system may also attempt to determine the NetBIOS computer name if the default DNS fails to respond to an IP address query. Both IPv4 and IPv6 are supported, but you need an IPv6 capable operating system like Windows 10, 8.x, 7 or Vista to do IPv6 queries


IPv6 Simple Query Screenshot

IPv6 Simple Query Screenshot

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NSLOOKUP

Use an nslookup equivalent to retrieve many types of resource records including A, AAAA, NS, MX, PTR, TXT, SOA, CNAME, RRSIG, SRV and many more.

nslookup MX Query Screenshot

nslookup MX Query Screenshot

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DiG

Actually two types of DiG (domain information groper). One is standard unix like and the other is the equivalent of DiG +trace. This is essentially the same data as nslookup except in a different format. DiG +trace provides a traceback to the root servers of all delegated zone responsible name servers down to the authoritative host for the domain or IP address you entered.

DiG Screenshot

DiG Screenshot

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DiG +trace Screenshot

DiG +trace Screenshot

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Get Basic DNS Records

This tool retrieves a set of DNS records from the Current DNS Server all at once. The records we request are A, AAAA, NS, MX, CNAME, PTR, and TXT.

Get Basic Records Screenshot

Get Basic Records Screenshot

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Zone Transfer (automatic or manual)

This tool can show all the devices registered in a DNS zone that defines a domain using a 'zone transfer' request. We provide two types of Zone Transfer: one attempts to automatically locate the Authoritative DNS to make the transfer possible and the other allows you to specify the Authoritative DNS for the Zone. DNS servers that implement tight security will not allow you to do a zone transfer unless you are on an approved IP address list. Transfer method is TCP using AXFR DNS protocol.

Zone Transfer Screenshot

Zone Transfer Screenshot

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Test Default DNS

This tool takes an IP address or hostname and requests the A or PTR record from each DNS name server assigned to your computer. This tells you if each default DNS is working (response time too) or communicating properly when a simple name resolution query is made by any internet enabled program.

Test Default DNS Screenshot

Test Default DNS Screenshot

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Flush Default DNS Cache

Flush Default DNS Cache does what it says - it clears your local cache of IP addresses and hostnames that were recently resolved. It accomplishes exactly the same thing as doing ipconfig /flushdns from the command line. This only affects names and IPs resolved by your TCP/IP networking subsystem, it does not affect anything resolved using our nslookup or dig tools.

Flush Default DNS Cache Screenshot

Flush Default DNS Cache Screenshot

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Hosts File Editor

The Hosts file is used by Windows (and other operating systems) as a local database for resolving hostnames to IP addresses and vice versa. If something is in the hosts file, TCP/IP uses the information found in the hosts file instead of querying DNS. The hosts file is a simple text file and we have provided an editor to help you manage it. NetScanTools Pro must be run using 'Run as administrator' in order to edit and save changes to the hosts file.

Hosts File Editor Screenshot

Hosts File Editor Screenshot

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A video of DNS Tools - Core in action!

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This tool provides a way to get information from Domain Name Servers (DNS).