Searching for 248.73.20.123.in-addr.arpa. PTR record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 14 ms
Searching for 248.73.20.123.in-addr.arpa. PTR record at b.in-addr-servers.arpa. [199.253.183.183] ...took 15 ms
Searching for 248.73.20.123.in-addr.arpa. PTR record at b.in-addr-servers.arpa. [199.253.183.183] ...took 15 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 h.gtld-servers.net. [192.54.112.30] ...took 7 ms
Searching for apnic.authdns.ripe.net. A record at ns4.apnic.net. [202.12.31.53] ...took 15 ms
Searching for 248.73.20.123.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 h.gtld-servers.net. [192.54.112.30] ...took 7 ms
Searching for apnic.authdns.ripe.net. A record at ns4.apnic.net. [202.12.31.53] ...took 15 ms
Searching for hcm-server1.vnn.vn. A record at D.ROOT-SERVERS.NET. [199.7.91.13]
...took 11 ms
Searching for hcm-server1.vnn.vn. A record at f.dns-servers.vn. [203.119.68.105] ...took 317 ms
Searching for hcm-server1.vnn.vn. A record at vdc-hn01.vnn.vn. [203.162.0.11] ...took 260 ms
Searching for 248.73.20.123.in-addr.arpa. PTR record at hcm-server1.vnn.vn. [203.162.4.1]
...took 255 msSearching for hcm-server1.vnn.vn. A record at f.dns-servers.vn. [203.119.68.105] ...took 317 ms
Searching for hcm-server1.vnn.vn. A record at vdc-hn01.vnn.vn. [203.162.0.11] ...took 260 ms
Nameserver hcm-server1.vnn.vn. reports: No such host 248.73.20.123.in-addr.arpa.
Total elapsed query time: 917 ms