I’m really repeating my own critique from when it was first published (https://news.ycombinator.com/item?id=29466513). Despite being revised to at least mention some more of the mechanics, it’s still somewhat half-baked by omitting any discussion of zones, one of the most significant units of data in the whole system.
Moreover, the push is not always fast. There are plenty of 2ary systems in the world that will ignore the notification and only recheck serial after SOA refresh intervals, and others that will queue it for batch update later. Assuming everything works instantly is a tech sector conceit.
Moreover, the push is not always fast. There are plenty of 2ary systems in the world that will ignore the notification and only recheck serial after SOA refresh intervals, and others that will queue it for batch update later. Assuming everything works instantly is a tech sector conceit.