systemdynamics.tw.	30 IN SOA vdns2.seed.net.tw. sysop.vdns2.seed.net.tw. (
				2025040600 ; serial
				21600      ; refresh (6 hours)
				7200       ; retry (2 hours)
				604800     ; expire (1 week)
				86400      ; minimum (1 day)
				)

systemdynamics.tw.	30 IN A	163.22.17.248

Name servers:
systemdynamics.tw.	30 IN NS vdns1.seed.net.tw.
systemdynamics.tw.	30 IN NS vdns2.seed.net.tw.