$ttl 38400
one-time.	IN	SOA	172.17.42.1. admin.test.com. (
			1439234395
			10800
			3600
			604800
			38400 )
one-time.          IN  NS  172.17.42.1.
jenkins          IN  A   10.1.1.1
foo              IN  A   2.2.2.2
test             IN  A   3.3.3.3
test             IN  A   4.4.4.4
@                IN  A   5.5.5.5
already-exists   IN  A   6.6.6.6