I wonder if it was around this time when people wisened up to disabling zone-transfer requests. Tangentially, I took part in a CTF recently and one of the task

I wonder if it was around this time when people wisened up to disabling zone-transfer requests. Tangentially, I took part in a CTF recently and one of the tasks was to get the list of hosts from a domain. The hint was "My sword. My bow. And my Axfr!"