Nslookup

nslookup — Query Internet domain name servers for information.

Synopsis

nslookup [options] [domain_name]

Description The nslookup command is a network administration tool used for querying Domain Name System (DNS) servers to obtain domain name or IP address mapping, and other DNS records. It is widely used to troubleshoot DNS-related issues and to gather information about domain names and IP addresses.

Basic Usage

nslookup [domain_name]

This basic usage queries the default DNS server for information about the specified domain (e.g., example.com) and returns the IP address associated with it.

For example:

nslookup example.com

Options

[domain_name]
- The domain name for which you wish to look up information. If omitted, nslookup will query the default DNS server and provide information on its configuration.
server [DNS_server]
- Specifies a particular DNS server to query instead of using the default server.
```
nslookup example.com 8.8.8.8
```
This will query Google's DNS server (8.8.8.8) for the domain example.com.
-type=record_type
- Specifies the type of DNS record to query. Common types include:
  - A: Address record (IPv4 address)
  - AAAA: Address record (IPv6 address)
  - MX: Mail Exchange record
  - CNAME: Canonical Name record
  - NS: Name Server record
  - PTR: Pointer record (reverse DNS)
  - TXT: Additional data used for domain verification purpose
  - SOA: Statement of Authority records of the target domains.
```
nslookup -type=MX example.com
```
This will return the mail server information for example.com.
-timeout=seconds
- Sets the time to wait for a response from the DNS server before timing out.
```
nslookup -timeout=10 example.com
```
-debug
- Displays detailed information about the query, including the server response and intermediate steps.
```
nslookup -debug example.com
```
-retry=n
- Specifies the number of retry attempts if the DNS server fails to respond.
```
nslookup -retry=3 example.com
```
-port=port_number
- Specifies a custom port for the DNS server to use.
```
nslookup -port=53 example.com
```
set [option]
- This is used to modify the behavior of nslookup for the current session. Some common set options include:
  - set type=record_type: Changes the type of record to query (e.g., set type=MX).
  - set querytype=record_type: Equivalent to -type=record_type.
  - set debug: Enables debugging output.
  - set port=port_number: Sets a custom DNS server port.
  - set timeout=seconds: Adjusts the query timeout.
Example:
```
nslookup
> set type=MX
> example.com
```

DNS ZONE TRANSFER

Perform DNS Enumeration using Zone Transfer

## DNS Zone transfer using Dig
    dig ns [Target Domain]
    dig @[NameServer] [Target Domain] axfr

## DNS Zone transfer using Nslookup
    nslookup <interactive mode to be used>
        set querytype=soa
        ls -d [Name Server]

NSLOOKUP ON WEB : http://www.kloth.net/services/nslookup.php

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Last updated 9 months ago