$ORIGIN s12-zone.cis.k7dxs.net. @ 300 IN SOA s12.cis.k7dxs.net. admin.k7dxs.net. ( 1 ; serial 300 ; refresh 300 ; retry 300 ; expire 300 ; minimum ) ; Nameservers @ 300 IN NS s12.cis.k7dxs.net. ; Test record @ 300 IN TXT "s12-zone test record: 0"