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How to use dnsenum in Kali Linux


DNSenum – This tool is programmed by perl. DNSenum is a tool that it was designed with the purpose of enumerating DNS information about a domain. We can get information by using dnsenum tool –

  • Get the host's addresse
  • Get the namservers
  • Get the MX record
  • Trying Zone Transfers
  • BIND Version
  • Get extra names and subdomains via google scraping
  • Brute force subdomains from file, can also perform recursion on subdomain that have NS records
  • Perform reverse lookups on netranges
  • Write to domain_ips.txt file ip-blocks

1.  How to open Dnsenum
   a. GUI method – Application → information Gathering → DNS Analysis → dnsenum
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b. open terminal type dnsenum and hit enter kindly read all commands. This will make you more smart geeky.

2. In terminal type dnsenum domain and hit enter for ex- dnsenum facebook.com after pressing enter you will see all the information like Host’s Address, Name servers, MX , Zone transfer etc.
Note – do not add www. With domain

3. Extra names and subdomains via google scraping – most of time this is not working with all domains. Open Terminal and type dnsenum -p 5 -s 20 domain 
Ex - dnsenum -p 5 -s 20 facebook.com
Here - 
-p = pages <value>
The number of google search pages to process when scraping names, the default is 20 pages, the -s switch must be specified.
-s = scrap <value>
The maximum number of subdomains that will be scraped from google.
Notes: Since this is not functional you can manually run the command in a Google search: “allinurl: -www site:Domain name”

4. Brute force subdomains open terminal and type dnsenum -f dns.txt domain
Ex - dnsenum -f dns.txt facebook.com
Here -
-f, = file <file>
Read subdomains from this file to perform brute force.
(click image for large view)
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