DNS enumeration
Nmap
nmap --script dns-brute {DOMAIN}
nmap --script dns-brute --script-args dns-brute.domain={DOMAIN},dns-brute.threads={#},dns-brute.hostlist={FILE}
DNSRecon
dnsrecon -d {DOMAIN} -D {FILE} -f -t std
theharvester
theharvester -d {DOMAIN} -b all -n -c -t