Searching for 21.69.50.124.in-addr.arpa. PTR record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 14 ms
Searching for 21.69.50.124.in-addr.arpa. PTR record at a.in-addr-servers.arpa. [199.180.182.53] ...took 93 ms
Searching for 21.69.50.124.in-addr.arpa. PTR record at a.in-addr-servers.arpa. [199.180.182.53] ...took 93 ms
Searching for ns2.apnic.net. A record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 15 ms
Searching for ns2.apnic.net. A record at c.gtld-servers.net. [192.26.92.30] ...took 20 ms
Searching for ns2.apnic.net. A record at ns2.apnic.net. [203.119.95.53] ...took 208 ms
Searching for 21.69.50.124.in-addr.arpa. PTR record at ns2.apnic.net. [203.119.95.53]
...took 190 msSearching for ns2.apnic.net. A record at c.gtld-servers.net. [192.26.92.30] ...took 20 ms
Searching for ns2.apnic.net. A record at ns2.apnic.net. [203.119.95.53] ...took 208 ms
Searching for b.dns.kr. A record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 14 ms
Searching for b.dns.kr. A record at c.dns.kr. [210.101.61.1] ...took 228 ms
Searching for 21.69.50.124.in-addr.arpa. PTR record at b.dns.kr. [210.101.60.1]
...took 315 msSearching for b.dns.kr. A record at c.dns.kr. [210.101.61.1] ...took 228 ms
Nameserver b.dns.kr. reports: No such host 21.69.50.124.in-addr.arpa.
Total elapsed query time: 1,097 ms