Searching for 181.104.4.117.in-addr.arpa. PTR record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 14 ms
Searching for 181.104.4.117.in-addr.arpa. PTR record at a.in-addr-servers.arpa. [199.180.182.53] ...took 152 ms
Searching for 181.104.4.117.in-addr.arpa. PTR record at a.in-addr-servers.arpa. [199.180.182.53] ...took 152 ms
Searching for apnic.authdns.ripe.net. A record at D.ROOT-SERVERS.NET. [199.7.91.13]
...took 11 ms
Searching for apnic.authdns.ripe.net. A record at b.gtld-servers.net. [192.33.14.30] ...took 12 ms
Searching for apnic.authdns.ripe.net. A record at ns4.apnic.net. [202.12.31.53] ...took 16 ms
Searching for 181.104.4.117.in-addr.arpa. PTR record at apnic.authdns.ripe.net. [193.0.9.9]
...took 12 msSearching for apnic.authdns.ripe.net. A record at b.gtld-servers.net. [192.33.14.30] ...took 12 ms
Searching for apnic.authdns.ripe.net. A record at ns4.apnic.net. [202.12.31.53] ...took 16 ms
Searching for dns2.viettel.com.vn. A record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 14 ms
Searching for dns2.viettel.com.vn. A record at g.dns-servers.vn. [204.61.216.115] ...took 11 ms
Searching for dns2.viettel.com.vn. A record at dns2.vietel.com.vn. [203.113.131.2] No route to host
Searching for dns2.viettel.com.vn. A record at dns1.vietel.com.vn. [203.113.131.1] ...took 353 ms
Searching for 181.104.4.117.in-addr.arpa. PTR record at dns2.viettel.com.vn. [203.113.188.2]
...took 275 msSearching for dns2.viettel.com.vn. A record at g.dns-servers.vn. [204.61.216.115] ...took 11 ms
Searching for dns2.viettel.com.vn. A record at dns2.vietel.com.vn. [203.113.131.2] No route to host
Searching for dns2.viettel.com.vn. A record at dns1.vietel.com.vn. [203.113.131.1] ...took 353 ms
Nameserver dns2.viettel.com.vn. reports: No such host 181.104.4.117.in-addr.arpa.
Total elapsed query time: 1,211 ms