dnscmd localhost /zoneadd bigfirm.biz /primary /file bigfirm.biz.dns dnscmd localhost /config bigfirm.biz /AllowUpdate 1 dnscmd localhost /recordadd bigfirm.biz @ NS downtowndc.bigfirm.biz. dnscmd localhost /recordadd bigfirm.biz downtowndc A 10.0.0.2 dnscmd localhost /zoneadd 0.168.192.in-addr.arpa /primary /file 192.dns dnscmd localhost /config 0.168.192.in-addr.arpa /AllowUpdate 1 dnscmd localhost /recordadd 0.168.192.in-addr.arpa @ NS downtowndc.bigfirm.biz. dnscmd localhost /zoneadd 0.0.10.in-addr.arpa /secondary 10.0.0.2 ipconfig /registerdns