Searching for 20.73.116.120.in-addr.arpa. PTR record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 14 ms
Searching for 20.73.116.120.in-addr.arpa. PTR record at d.in-addr-servers.arpa. [200.10.60.53] ...took 173 ms
Searching for 20.73.116.120.in-addr.arpa. PTR record at d.in-addr-servers.arpa. [200.10.60.53] ...took 173 ms
Searching for apnic.authdns.ripe.net. A record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 14 ms
Searching for apnic.authdns.ripe.net. A record at l.gtld-servers.net. [192.41.162.30] ...took 12 ms
Searching for apnic.authdns.ripe.net. A record at ns3.afrinic.net. [204.61.216.100] ...took 12 ms
Searching for 20.73.116.120.in-addr.arpa. PTR record at apnic.authdns.ripe.net. [193.0.9.9]
...took 11 msSearching for apnic.authdns.ripe.net. A record at l.gtld-servers.net. [192.41.162.30] ...took 12 ms
Searching for apnic.authdns.ripe.net. A record at ns3.afrinic.net. [204.61.216.100] ...took 12 ms
Searching for name.ncku.edu.tw. A record at I.ROOT-SERVERS.NET. [192.36.148.17]
...took 12 ms
Searching for name.ncku.edu.tw. A record at e.dns.tw. [211.20.231.11] ...took 305 ms
Searching for name.ncku.edu.tw. A record at name.ncku.edu.tw. [163.28.112.1] ...took 316 ms
Searching for 20.73.116.120.in-addr.arpa. PTR record at name.ncku.edu.tw. [163.28.112.1]
...took 316 msSearching for name.ncku.edu.tw. A record at e.dns.tw. [211.20.231.11] ...took 305 ms
Searching for name.ncku.edu.tw. A record at name.ncku.edu.tw. [163.28.112.1] ...took 316 ms
Searching for ns3.tn.edu.tw. A record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 14 ms
Searching for ns3.tn.edu.tw. A record at b.dns.tw. [210.201.138.58] ...took 269 ms
Searching for ns3.tn.edu.tw. A record at a.twnic.net.tw. [211.73.64.22] ...took 290 ms
Searching for ns3.tn.edu.tw. A record at tns.tn.edu.tw. [120.116.1.3] ...took 316 ms
Searching for 20.73.116.120.in-addr.arpa. PTR record at ns3.tn.edu.tw. [163.26.200.8]
...took 316 msSearching for ns3.tn.edu.tw. A record at b.dns.tw. [210.201.138.58] ...took 269 ms
Searching for ns3.tn.edu.tw. A record at a.twnic.net.tw. [211.73.64.22] ...took 290 ms
Searching for ns3.tn.edu.tw. A record at tns.tn.edu.tw. [120.116.1.3] ...took 316 ms
Nameserver ns3.tn.edu.tw. reports: No such host 20.73.116.120.in-addr.arpa.
Total elapsed query time: 2,390 ms