Searching for 191.59.17.163.in-addr.arpa. PTR record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 14 ms
Searching for 191.59.17.163.in-addr.arpa. PTR record at a.in-addr-servers.arpa. [199.180.182.53] ...took 100 ms
SERVFAIL
Searching for 191.59.17.163.in-addr.arpa. PTR record at ns1.tcrc.edu.tw. [163.28.82.1] ...took 236 ms
Searching for 191.59.17.163.in-addr.arpa. PTR record at a.in-addr-servers.arpa. [199.180.182.53] ...took 100 ms
Searching for ns1.apnic.net. A record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 14 ms
Searching for ns1.apnic.net. A record at k.gtld-servers.net. [192.52.178.30] ...took 13 ms
Searching for ns1.apnic.net. A record at apnic.authdns.ripe.net. [193.0.9.9] ...took 12 ms
Searching for 191.59.17.163.in-addr.arpa. PTR record at ns1.apnic.net. [203.119.42.53]
...took 233 msSearching for ns1.apnic.net. A record at k.gtld-servers.net. [192.52.178.30] ...took 13 ms
Searching for ns1.apnic.net. A record at apnic.authdns.ripe.net. [193.0.9.9] ...took 12 ms
Searching for ns3.tcrc.edu.tw. A record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 13 ms
Searching for ns3.tcrc.edu.tw. A record at d.dns.tw. [60.199.165.186] ...took 189 ms
Searching for ns3.tcrc.edu.tw. A record at ns2.tcrc.edu.tw. [163.28.82.5] ...took 236 ms
Searching for 191.59.17.163.in-addr.arpa. PTR record at ns3.tcrc.edu.tw. [163.28.80.3]
...took 234 msSearching for ns3.tcrc.edu.tw. A record at d.dns.tw. [60.199.165.186] ...took 189 ms
Searching for ns3.tcrc.edu.tw. A record at ns2.tcrc.edu.tw. [163.28.82.5] ...took 236 ms
SERVFAIL
Searching for 191.59.17.163.in-addr.arpa. PTR record at ns1.tcrc.edu.tw. [163.28.82.1] ...took 236 ms
Searching for dns3.tc.edu.tw. A record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 14 ms
Searching for dns3.tc.edu.tw. A record at h.dns.tw. [204.61.216.119] ...took 6 ms
Searching for dns3.tc.edu.tw. A record at d.twnic.net.tw. [60.199.165.187] ...took 189 ms
Searching for dns3.tc.edu.tw. A record at dns.tc.edu.tw. [163.17.40.1] ...took 235 ms
Searching for 191.59.17.163.in-addr.arpa. PTR record at dns3.tc.edu.tw. [163.28.80.41]
...took 236 msSearching for dns3.tc.edu.tw. A record at h.dns.tw. [204.61.216.119] ...took 6 ms
Searching for dns3.tc.edu.tw. A record at d.twnic.net.tw. [60.199.165.187] ...took 189 ms
Searching for dns3.tc.edu.tw. A record at dns.tc.edu.tw. [163.17.40.1] ...took 235 ms
Nameserver dns3.tc.edu.tw. reports: No such host 191.59.17.163.in-addr.arpa.
Total elapsed query time: 1,974 ms