1. DNS/DNSRecon

について、ここに記述してください。

https://securitytrails.com/blog/dnsrecon-tool

https://manpages.debian.org/testing/dnsrecon/dnsrecon.1.en.html

https://whitemarkn.com/learning-ethical-hacker/dnsrecon/

https://github.com/darkoperator/dnsrecon

DNSRecon is a Python port of a Ruby script that I wrote to learn the language and 
about DNS in early 2007. 
This time I wanted to learn about Python and extend the functionality of the original tool and
in the process re-learn how DNS works and how could it be used in the process of a security assessment and network troubleshooting.

This script provides the ability to perform:

    Check all NS Records for Zone Transfers.
    Enumerate General DNS Records for a given Domain (MX, SOA, NS, A, AAAA, SPF and TXT).
    Perform common SRV Record Enumeration.
    Top Level Domain (TLD) Expansion.
    Check for Wildcard Resolution.
    Brute Force subdomain and host A and AAAA records given a domain and a wordlist.
    Perform a PTR Record lookup for a given IP Range or CIDR.
    Check a DNS Server Cached records for A, AAAA and CNAME Records provided 
      a list of host records in a text file to check.