dcs.vn.			30 IN SOA dns2. hostmaster. (
				2574       ; serial
				60         ; refresh (1 minute)
				60         ; retry (1 minute)
				86400      ; expire (1 day)
				3600       ; minimum (1 hour)
				)

dcs.vn.			30 IN TXT "v=spf1  ip4:103.221.228.28 -all"
dcs.vn.			30 IN TXT "z0g960w58th68vybjl80j69dcn7slp3w"
dcs.vn.			30 IN TXT "m4352pk93tsglrc83qjyzc32nr781m06"

Mail exchangers:
dcs.vn.			30 IN MX 10 103.221.228.28.

Name servers:
dcs.vn.			30 IN NS dns1.cpt.gov.vn.
dcs.vn.			30 IN NS dns2.cpt.gov.vn.