Searching for 215.224.78.115.in-addr.arpa. PTR record at I.ROOT-SERVERS.NET. [192.36.148.17]
...took 11 ms
Searching for 215.224.78.115.in-addr.arpa. PTR record at e.in-addr-servers.arpa. [203.119.86.101] ...took 258 ms
Searching for 215.224.78.115.in-addr.arpa. PTR record at e.in-addr-servers.arpa. [203.119.86.101] ...took 258 ms
Searching for ns3.lacnic.net. A record at D.ROOT-SERVERS.NET. [199.7.91.13]
...took 12 ms
Searching for ns3.lacnic.net. A record at g.gtld-servers.net. [192.42.93.30] ...took 6 ms
Searching for ns3.lacnic.net. A record at ns2.lacnic.net. [200.3.13.11] ...took 202 ms
Searching for 215.224.78.115.in-addr.arpa. PTR record at ns3.lacnic.net. [200.3.13.14]
...took 204 msSearching for ns3.lacnic.net. A record at g.gtld-servers.net. [192.42.93.30] ...took 6 ms
Searching for ns3.lacnic.net. A record at ns2.lacnic.net. [200.3.13.11] ...took 202 ms
Searching for dns1.viettel.com.vn. A record at D.ROOT-SERVERS.NET. [199.7.91.13]
...took 12 ms
Searching for dns1.viettel.com.vn. A record at d.dns-servers.vn. [203.119.44.105] ...took 272 ms
Searching for dns1.viettel.com.vn. A record at dns1.vietel.com.vn. [203.113.131.1] ...took 333 ms
Searching for 215.224.78.115.in-addr.arpa. PTR record at dns1.viettel.com.vn. [203.113.131.1]
...took 325 msSearching for dns1.viettel.com.vn. A record at d.dns-servers.vn. [203.119.44.105] ...took 272 ms
Searching for dns1.viettel.com.vn. A record at dns1.vietel.com.vn. [203.113.131.1] ...took 333 ms
Nameserver dns1.viettel.com.vn. reports: No such host 215.224.78.115.in-addr.arpa.
Total elapsed query time: 1,635 ms