Searching for 50.184.155.137.in-addr.arpa. PTR record at K.ROOT-SERVERS.NET. [193.0.14.129]
...took 39 ms
Searching for 50.184.155.137.in-addr.arpa. PTR record at f.in-addr-servers.arpa. [193.0.9.1] ...took 11 ms
Searching for 50.184.155.137.in-addr.arpa. PTR record at f.in-addr-servers.arpa. [193.0.9.1] ...took 11 ms
Searching for z.arin.net. A record at K.ROOT-SERVERS.NET. [193.0.14.129]
...took 38 ms
Searching for z.arin.net. A record at h.gtld-servers.net. [192.54.112.30] ...took 22 ms
Searching for z.arin.net. A record at u.arin.net. [204.61.216.50] ...took 13 ms
Searching for 50.184.155.137.in-addr.arpa. PTR record at z.arin.net. [199.180.180.63]
...took 92 msSearching for z.arin.net. A record at h.gtld-servers.net. [192.54.112.30] ...took 22 ms
Searching for z.arin.net. A record at u.arin.net. [204.61.216.50] ...took 13 ms
Searching for ns4.cnu.edu. A record at K.ROOT-SERVERS.NET. [193.0.14.129]
...took 39 ms
Searching for ns4.cnu.edu. A record at d.edu-servers.net. [192.31.80.30] ...took 33 ms
Searching for ns4.cnu.edu. A record at ns4.cnu.edu. [205.251.196.23] ...took 6 ms
Searching for 50.184.155.137.in-addr.arpa. PTR record at ns4.cnu.edu. [205.251.196.23]
...took 6 msSearching for ns4.cnu.edu. A record at d.edu-servers.net. [192.31.80.30] ...took 33 ms
Searching for ns4.cnu.edu. A record at ns4.cnu.edu. [205.251.196.23] ...took 6 ms
Nameserver ns4.cnu.edu. reports: No such host 50.184.155.137.in-addr.arpa.
Total elapsed query time: 299 ms