What is the nslookup command?

nslookup is the name of a program that lets an Internet server administrator or any computer user enter a host name (for example, “whatis.com”) and find out the corresponding IP address or domain name system (DNS) record.

How do I do a DNS lookup?

Access your command prompt. Use the command nslookup (this stands for Name Server Lookup) followed by the domain name or IP address you want to trace. Press enter. This command will simply query the Name Service for information about the specified IP address or domain name.

How can I get hostname from nslookup?

Querying DNS

  1. Click the Windows Start button, then “All Programs” and “Accessories.” Right-click on “Command Prompt” and choose “Run as Administrator.”
  2. Type “nslookup %ipaddress%” in the black box that appears on the screen, substituting %ipaddress% with the IP address for which you want to find the hostname.

How do I query with nslookup?

How Do I Use The NSLOOKUP Tool Provided With Windows?

  1. Type nslookup and hit Enter.
  2. Type nslookup and domain name and the command will return the A record for the domain you run a query for.
  3. Type nslookup -q=XX where XX is a type of a DNS record.

What is DNS lookup data?

A DNS lookup, in a general sense, is the process by which a DNS record is returned from a DNS server. This is like looking up a phone number in a phone book – that is why it is referred to as a “lookup”.

How do I query all DNS records for a domain?

For Windows:

  1. Launch Windows Command Prompt by navigating to Start > Command Prompt or via Run > CMD.
  2. Type NSLOOKUP and hit Enter.
  3. Set the DNS Record type you wish to lookup by typing set type=## where ## is the record type, then hit Enter.
  4. Now enter the domain name you wish to query then hit Enter..

What are the three 3 types of DNS queries?

There are three types of queries in the DNS system:

  • Recursive Query.
  • Iterative Query.
  • Non-Recursive Query.
  • DNS Resolver.
  • DNS Root Server.
  • Authoritative DNS Server.

What are the 4 DNS servers?

In all, there are four different DNS servers involved in loading a webpage (assuming it’s not already cached on the user’s computer or device):…How Does DNS Work?

  • DNS recursor.
  • Root nameserver.
  • TLD nameserver.
  • Authoritative nameserver.

What are the 13 root name servers?

The root servers are operated by 12 different organizations:

  • A VeriSign Global Registry Services.
  • B University of Southern California, Information Sciences Institute.
  • C Cogent Communications.
  • D University of Maryland.
  • E NASA Ames Research Center.
  • F Internet Systems Consortium, Inc.
  • G US DoD Network Information Center.

Can you reverse lookup an IP address?

A reverse IP lookup can be used to find the IP address’ A records, mapping a domain name to the physical IP address of the device hosting that domain. The results help determine the virtual hosts served from a web server and identify server vulnerabilities.

How do I find all DNS entries for an IP?

Do the following steps.

  1. Open the DNS lookup tool.
  2. Enter the domain and select the DNS record you want to check.
  3. If you want to perform the lookup of all the DNS records configured for the domain, select “ALL” from the dropdown list.
  4. The tool will provide all the DNS records configured for that domain.