Searching for 91.103.18.123.in-addr.arpa. PTR record at B.ROOT-SERVERS.NET. [192.228.79.201]
...took 25 ms
Searching for 91.103.18.123.in-addr.arpa. PTR record at f.in-addr-servers.arpa. [193.0.9.1] ...took 11 ms
Searching for 91.103.18.123.in-addr.arpa. PTR record at f.in-addr-servers.arpa. [193.0.9.1] ...took 11 ms
Searching for ns2.apnic.net. A record at K.ROOT-SERVERS.NET. [193.0.14.129]
...took 12 ms
Searching for ns2.apnic.net. A record at e.gtld-servers.net. [192.12.94.30] ...took 23 ms
Searching for ns2.apnic.net. A record at ns1.apnic.net. [203.119.42.53] ...took 190 ms
Searching for 91.103.18.123.in-addr.arpa. PTR record at ns2.apnic.net. [203.119.95.53]
...took 5 msSearching for ns2.apnic.net. A record at e.gtld-servers.net. [192.12.94.30] ...took 23 ms
Searching for ns2.apnic.net. A record at ns1.apnic.net. [203.119.42.53] ...took 190 ms
Searching for hcm-server1.vnn.vn. A record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 14 ms
Searching for hcm-server1.vnn.vn. A record at e.dns-servers.vn. [203.119.60.105] ...took 227 ms
Searching for hcm-server1.vnn.vn. A record at hcm-server1.vnn.vn. [203.162.4.1] ...took 222 ms
Searching for 91.103.18.123.in-addr.arpa. PTR record at hcm-server1.vnn.vn. [203.162.4.1]
...took 220 msSearching for hcm-server1.vnn.vn. A record at e.dns-servers.vn. [203.119.60.105] ...took 227 ms
Searching for hcm-server1.vnn.vn. A record at hcm-server1.vnn.vn. [203.162.4.1] ...took 222 ms
Nameserver hcm-server1.vnn.vn. reports: No such host 91.103.18.123.in-addr.arpa.
Total elapsed query time: 949 ms