مكتبة الشروحات: DNS

Getting nameserver authority of domain or IP rDNS

For domain 
# host -tns hostinginside.com

And for IP Address
# host -tns 72.98.103.in-addr.arpa

72.98.103.in-addr.arpa came from 103.98.72.0/24

+886(4)23117977