Searching for 21.192.100.92.in-addr.arpa. PTR record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 13 ms
Searching for 21.192.100.92.in-addr.arpa. PTR record at c.in-addr-servers.arpa. [196.216.169.10] ...took 170 ms
Searching for 21.192.100.92.in-addr.arpa. PTR record at c.in-addr-servers.arpa. [196.216.169.10] ...took 170 ms
Searching for ns4.apnic.net. A record at D.ROOT-SERVERS.NET. [199.7.91.13]
...took 12 ms
Searching for ns4.apnic.net. A record at c.gtld-servers.net. [192.26.92.30] ...took 21 ms
Searching for ns4.apnic.net. A record at ns4.apnic.net. [202.12.31.53] ...took 15 ms
Searching for 21.192.100.92.in-addr.arpa. PTR record at ns4.apnic.net. [202.12.31.53]
...took 15 msSearching for ns4.apnic.net. A record at c.gtld-servers.net. [192.26.92.30] ...took 21 ms
Searching for ns4.apnic.net. A record at ns4.apnic.net. [202.12.31.53] ...took 15 ms
Searching for ns2.ptn.ru. A record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 14 ms
Searching for ns2.ptn.ru. A record at a.dns.ripn.net. [193.232.128.6] ...took 38 ms
Searching for ns2.ptn.ru. A record at ns2.ptn.ru. [188.128.82.235] ...took 82 ms
Searching for 21.192.100.92.in-addr.arpa. PTR record at ns2.ptn.ru. [188.128.82.235]
...took 44 msSearching for ns2.ptn.ru. A record at a.dns.ripn.net. [193.232.128.6] ...took 38 ms
Searching for ns2.ptn.ru. A record at ns2.ptn.ru. [188.128.82.235] ...took 82 ms
Nameserver ns2.ptn.ru. reports: No such host 21.192.100.92.in-addr.arpa.
Total elapsed query time: 424 ms