How to scan a domain zone and get a list of domains?

Question

Programming

To do some research work. The task is to extract the list of domains.
What are the ways to do this, but so as not to fall under the filters.

Answer 1

Root zone registrars do not provide dumps of their namebases to anyone.
And if we are talking about level 2 zones, then this is possible only in a number of cases when the DNS server serving the desired zone receives AXFR Requests (more details here habrahabr.ru/post/166607/).