Standard Port: 53/udp, 53/tcp
nslookup
server <ip>
<ip>
Recon
Reverse Lookup over range
./dnsrecon.rb -t rvs -i 10.0.0.1,10.0.0.255
Standard Records
./dnsrecon.rb -t std -d example.com
Subdomain enumeration
./dnsrecon.rb -t brt -d example.com -w subdomains.txt
Zone Transfer
./dnsrecon.rb -d example.com -t axfr