$TTL    86400 ; 1 day
@                       IN SOA  ns1.intra.nausch.org. hostmaster.nausch.org. (
                                2017122901 ; serial
                                28800      ; refresh (8 hours)
                                7200       ; retry (2 hours)
                                604800     ; expire (1 week)
                                86400      ; minimum (1 day)
                                )
                        NS      ns1.intra.nausch.org.
                        MX      10 mx1.nausch.org.

27      		PTR    	ns1.intra.nausch.org.
51      		PTR    	pml010051.intra.nausch.org.