Passive DNS
Investigating Security Incidents with Passive DNS
Bypassing Domain Authentication
https://medium.freecodecamp.org/how-i-hacked-hundreds-of-companies-through-their-helpdesk-b7680ddc2d4c
DNSMasq Vulnerabilities
https://security.googleblog.com/2017/10/behind-masq-yet-more-dns-and-dhcp.html
