Searching for 100.53.20.123.in-addr.arpa. PTR record at D.ROOT-SERVERS.NET. [199.7.91.13]
...took 12 ms
Searching for 100.53.20.123.in-addr.arpa. PTR record at b.in-addr-servers.arpa. [199.253.183.183] ...took 14 ms
Searching for 100.53.20.123.in-addr.arpa. PTR record at b.in-addr-servers.arpa. [199.253.183.183] ...took 14 ms
Searching for rirns.arin.net. A record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 14 ms
Searching for rirns.arin.net. A record at l.gtld-servers.net. [192.41.162.30] ...took 11 ms
Searching for rirns.arin.net. A record at ns2.arin.net. [199.71.0.108] ...took 149 ms
Searching for 100.53.20.123.in-addr.arpa. PTR record at rirns.arin.net. [199.253.249.53]
...took 156 msSearching for rirns.arin.net. A record at l.gtld-servers.net. [192.41.162.30] ...took 11 ms
Searching for rirns.arin.net. A record at ns2.arin.net. [199.71.0.108] ...took 149 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 323 ms
Searching for hcm-server1.vnn.vn. A record at hcm-server1.vnn.vn. [203.162.4.1] ...took 230 ms
Searching for 100.53.20.123.in-addr.arpa. PTR record at hcm-server1.vnn.vn. [203.162.4.1]
...took 237 msSearching for hcm-server1.vnn.vn. A record at f.dns-servers.vn. [203.119.68.105] ...took 323 ms
Searching for hcm-server1.vnn.vn. A record at hcm-server1.vnn.vn. [203.162.4.1] ...took 230 ms
Nameserver hcm-server1.vnn.vn. reports: No such host 100.53.20.123.in-addr.arpa.
Total elapsed query time: 1,157 ms