$TTL 86400 @ IN SOA server.myhome.net. root.server.myhome.net. ( 1997022700 ; Serial 28800 ; Refresh 14400 ; Retry 3600000 ; Expire 86400 ) ; Minimum IN NS server.myhome.net. 1 IN PTR server.myhome.net. 2 IN PTR devel.myhome.net. 3 IN PTR php.myhome.net. 4 IN PTR asp.myhome.net. 7 IN PTR be.myhome.net.