$ go run NSrecords.go mtsoukalos.eu
ns5.linode.com.
ns4.linode.com.
ns1.linode.com.
ns2.linode.com.
ns3.linode.com.
$ go run NSrecords.go www.mtsoukalos.eu
lookup www.mtsoukalos.eu on 8.8.8.8:53: no such host
您可以用 host(1) 工具验证上面输出的正确性:
$ host -t ns www.mtsoukalos.eu
www.mtsoukalos.eu has no NS record
$ host -t ns mtsoukalos.eu
mtsoukalos.eu name server ns3.linode.com.
mtsoukalos.eu name server ns1.linode.com.
mtsoukalos.eu name server ns4.linode.com.
mtsoukalos.eu name server ns2.linode.com.
mtsoukalos.eu name server ns5.linode.com.