Searching for 197.166.78.115.in-addr.arpa. PTR record at K.ROOT-SERVERS.NET. [193.0.14.129]
...took 12 ms
Searching for 197.166.78.115.in-addr.arpa. PTR record at f.in-addr-servers.arpa. [193.0.9.1] ...took 11 ms
Searching for 197.166.78.115.in-addr.arpa. PTR record at f.in-addr-servers.arpa. [193.0.9.1] ...took 11 ms
Searching for ns1.apnic.net. A record at K.ROOT-SERVERS.NET. [193.0.14.129]
...took 11 ms
Searching for ns1.apnic.net. A record at h.gtld-servers.net. [192.54.112.30] ...took 6 ms
Searching for ns1.apnic.net. A record at apnic.authdns.ripe.net. [193.0.9.9] ...took 11 ms
Searching for 197.166.78.115.in-addr.arpa. PTR record at ns1.apnic.net. [203.119.42.53]
...took 188 msSearching for ns1.apnic.net. A record at h.gtld-servers.net. [192.54.112.30] ...took 6 ms
Searching for ns1.apnic.net. A record at apnic.authdns.ripe.net. [193.0.9.9] ...took 11 ms
Searching for dns1.viettel.com.vn. A record at D.ROOT-SERVERS.NET. [199.7.91.13]
...took 11 ms
Searching for dns1.viettel.com.vn. A record at b.dns-servers.vn. [203.119.73.105] ...took 276 ms
Searching for dns1.viettel.com.vn. A record at dns2.vietel.com.vn. [203.113.131.2] No route to host
Searching for dns1.viettel.com.vn. A record at dns1.vietel.com.vn. [203.113.131.1] ...took 341 ms
Searching for 197.166.78.115.in-addr.arpa. PTR record at dns1.viettel.com.vn. [203.113.131.1]
...took 340 msSearching for dns1.viettel.com.vn. A record at b.dns-servers.vn. [203.119.73.105] ...took 276 ms
Searching for dns1.viettel.com.vn. A record at dns2.vietel.com.vn. [203.113.131.2] No route to host
Searching for dns1.viettel.com.vn. A record at dns1.vietel.com.vn. [203.113.131.1] ...took 341 ms
Nameserver dns1.viettel.com.vn. reports: No such host 197.166.78.115.in-addr.arpa.
Total elapsed query time: 1,545 ms