dd-dns.de.		30 IN SOA localhost. root.localhost. (
				6          ; serial
				10800      ; refresh (3 hours)
				3600       ; retry (1 hour)
				604800     ; expire (1 week)
				3600       ; minimum (1 hour)
				)

Name servers:
dd-dns.de.		30 IN NS ns2.crns.de.
dd-dns.de.		30 IN NS h2-045.net.crns.de.