$TTL 300        ; 5 minutes
@		       IN SOA   ns1.matrix.net. morpheus.matrix.net (
                                2010021610 ; serial
                                43200      ; refresh (12 hours)
                                3600       ; retry (1 hour)
                                259200     ; expire (3 days)
                                300        ; minimum (5 minutes)
                                )
                        NS      ns1.matrix.net.
5                       PTR     matrix.net.
80                      PTR     zeon.matrix.net.
99                      PTR     nebu.matrix.net.