Searching for 60.22.21.123.in-addr.arpa. PTR record at K.ROOT-SERVERS.NET. [193.0.14.129]
...took 11 ms
Searching for 60.22.21.123.in-addr.arpa. PTR record at e.in-addr-servers.arpa. [203.119.86.101] ...took 285 ms
Searching for 60.22.21.123.in-addr.arpa. PTR record at e.in-addr-servers.arpa. [203.119.86.101] ...took 285 ms
Searching for ns2.apnic.net. A record at D.ROOT-SERVERS.NET. [199.7.91.13]
...took 11 ms
Searching for ns2.apnic.net. A record at i.gtld-servers.net. [192.43.172.30] ...took 7 ms
Searching for ns2.apnic.net. A record at ns1.apnic.net. [203.119.42.53] ...took 189 ms
Searching for 60.22.21.123.in-addr.arpa. PTR record at ns2.apnic.net. [203.119.95.53]
...took 5 msSearching for ns2.apnic.net. A record at i.gtld-servers.net. [192.43.172.30] ...took 7 ms
Searching for ns2.apnic.net. A record at ns1.apnic.net. [203.119.42.53] ...took 189 ms
Searching for vdc-hn01.vnn.vn. A record at D.ROOT-SERVERS.NET. [199.7.91.13]
...took 12 ms
Searching for vdc-hn01.vnn.vn. A record at b.dns-servers.vn. [203.119.73.105] ...took 258 ms
Searching for vdc-hn01.vnn.vn. A record at hcm-server1.vnn.vn. [203.162.4.1] ...took 261 ms
Searching for 60.22.21.123.in-addr.arpa. PTR record at vdc-hn01.vnn.vn. [203.162.0.11]
...took 273 msSearching for vdc-hn01.vnn.vn. A record at b.dns-servers.vn. [203.119.73.105] ...took 258 ms
Searching for vdc-hn01.vnn.vn. A record at hcm-server1.vnn.vn. [203.162.4.1] ...took 261 ms
Nameserver vdc-hn01.vnn.vn. reports: No such host 60.22.21.123.in-addr.arpa.
Total elapsed query time: 1,312 ms