One comment about the "okay, DNS records actually do “propagate”." I assume he's talking about DNS notifications? If so, I wouldn't say they're only for big p

One comment about the "okay, DNS records actually do “propagate”." I assume he's talking about DNS notifications? If so, I wouldn't say they're only for big providers. It's useful for anyone who runs more than one DNS server (and even Microsoft DNS does this, I think). The basic idea being that you run a single 'master' DNS server and then send 'notifications' to the other authoritative DNS servers (the situations I'm used to, the master is 'hidden' and only the 'child' DNS servers are publicly accessible. _BUT_, even in this case, the notifies are 'pushed', but AFAIK, the 'child' servers still 'pull' the zone from the master.