Searching for 17.121.252.123.in-addr.arpa. PTR record at C.ROOT-SERVERS.NET. [192.33.4.12]
...took 11 ms
Searching for 17.121.252.123.in-addr.arpa. PTR record at a.in-addr-servers.arpa. [199.180.182.53] ...took 91 ms
SERVFAIL
Searching for 17.121.252.123.in-addr.arpa. PTR record at dns8.kbtelecom.net.tw. [203.133.1.8] Timed out while trying to resolve 17.121.252.123.in-addr.arpa./PTR, id=40941
Searching for 17.121.252.123.in-addr.arpa. PTR record at dns6.kbtelecom.net.tw. [203.133.1.6] ...took 309 ms
SERVFAIL
Searching for 17.121.252.123.in-addr.arpa. PTR record at a.in-addr-servers.arpa. [199.180.182.53] ...took 91 ms
Searching for rirns.arin.net. A record at K.ROOT-SERVERS.NET. [193.0.14.129]
...took 34 ms
Searching for rirns.arin.net. A record at f.gtld-servers.net. [192.35.51.30] ...took 7 ms
Searching for rirns.arin.net. A record at ns3.arin.net. [199.5.26.108] ...took 147 ms
Searching for 17.121.252.123.in-addr.arpa. PTR record at rirns.arin.net. [199.253.249.53]
...took 91 msSearching for rirns.arin.net. A record at f.gtld-servers.net. [192.35.51.30] ...took 7 ms
Searching for rirns.arin.net. A record at ns3.arin.net. [199.5.26.108] ...took 147 ms
Searching for dns6.kbtelecom.net.tw. A record at K.ROOT-SERVERS.NET. [193.0.14.129]
...took 34 ms
Searching for dns6.kbtelecom.net.tw. A record at c.dns.tw. [203.66.87.201] ...took 222 ms
Searching for dns6.kbtelecom.net.tw. A record at f.twnic.net.tw. [203.66.87.200] ...took 222 ms
Searching for dns6.kbtelecom.net.tw. A record at ns1.kbtelecom.net.tw. [61.63.0.66] ...took 258 ms
Searching for 17.121.252.123.in-addr.arpa. PTR record at dns6.kbtelecom.net.tw. [203.133.1.6]
...took 311 msSearching for dns6.kbtelecom.net.tw. A record at c.dns.tw. [203.66.87.201] ...took 222 ms
Searching for dns6.kbtelecom.net.tw. A record at f.twnic.net.tw. [203.66.87.200] ...took 222 ms
Searching for dns6.kbtelecom.net.tw. A record at ns1.kbtelecom.net.tw. [61.63.0.66] ...took 258 ms
SERVFAIL
Searching for dns8.kbtelecom.net.tw. A record at F.ROOT-SERVERS.NET. [192.5.5.241]
...took 6 ms
Searching for dns8.kbtelecom.net.tw. A record at h.dns.tw. [204.61.216.119] ...took 12 ms
Searching for dns8.kbtelecom.net.tw. A record at ns1.kbtelecom.net.tw. [61.63.0.66] ...took 255 ms
Searching for 17.121.252.123.in-addr.arpa. PTR record at dns8.kbtelecom.net.tw. [203.133.1.8]
Timed out while trying to resolve 17.121.252.123.in-addr.arpa./PTR, id=24700Searching for dns8.kbtelecom.net.tw. A record at h.dns.tw. [204.61.216.119] ...took 12 ms
Searching for dns8.kbtelecom.net.tw. A record at ns1.kbtelecom.net.tw. [61.63.0.66] ...took 255 ms
Searching for 17.121.252.123.in-addr.arpa. PTR record at dns8.kbtelecom.net.tw. [203.133.1.8] Timed out while trying to resolve 17.121.252.123.in-addr.arpa./PTR, id=40941
Searching for 17.121.252.123.in-addr.arpa. PTR record at dns6.kbtelecom.net.tw. [203.133.1.6] ...took 309 ms
SERVFAIL
None of the nameservers responded correctly.
Total elapsed query time: 6,012 ms