TXT(Once upon a midnight dreary)
TXT(When I pondered weak and weary)
-; A subdomain called a.example.com
+; A subdomain called a.example.com with DNSSEC keys
D(a)
NS(ns1.example.com, ns2.example.com)
+DS()
; Another subdomain (b.example.com), but this time one of the nameservers
; is inside, so we need to specify a glue record