student@ubuntu:~$
ncl 2/5 25 XP

DNS Reconnaissance

0%

Quick Reference

Command What It Does
dig example.com Query A record (IPv4)
dig AAAA example.com Query IPv6 address
dig MX example.com Query mail servers
dig NS example.com Query nameservers
dig +short example.com Concise output
dig +trace example.com Full resolution chain
dig @8.8.8.8 example.com Query specific DNS server
dig -x 93.184.216.34 Reverse DNS (IP → hostname)
nslookup example.com Simple DNS lookup

DNS Record Types

Type Purpose
A IPv4 address
AAAA IPv6 address
CNAME Alias to another domain
MX Mail server
NS Nameserver delegation
TXT Arbitrary text (SPF, DKIM)
SOA Zone authority info
PTR Reverse lookup (IP → name)
DNSKEY DNSSEC public key

Unlocks

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