Searching for 176.51.155.137.in-addr.arpa. PTR record at A.ROOT-SERVERS.NET. [198.41.0.4]
...took 5 ms
Searching for 176.51.155.137.in-addr.arpa. PTR record at c.in-addr-servers.arpa. [196.216.169.10] ...took 201 ms
Searching for 176.51.155.137.in-addr.arpa. PTR record at c.in-addr-servers.arpa. [196.216.169.10] ...took 201 ms
Searching for x.arin.net. A record at D.ROOT-SERVERS.NET. [199.7.91.13]
...took 11 ms
Searching for x.arin.net. A record at h.gtld-servers.net. [192.54.112.30] ...took 6 ms
Searching for x.arin.net. A record at u.arin.net. [204.61.216.50] ...took 12 ms
Searching for 176.51.155.137.in-addr.arpa. PTR record at x.arin.net. [199.180.180.63]
...took 155 msSearching for x.arin.net. A record at h.gtld-servers.net. [192.54.112.30] ...took 6 ms
Searching for x.arin.net. A record at u.arin.net. [204.61.216.50] ...took 12 ms
Searching for ns1.cnu.edu. A record at J.ROOT-SERVERS.NET. [192.58.128.30]
...took 12 ms
Searching for ns1.cnu.edu. A record at f.edu-servers.net. [192.35.51.30] ...took 6 ms
Searching for ns1.cnu.edu. A record at ns2.cnu.edu. [205.251.195.140] ...took 6 ms
Searching for 176.51.155.137.in-addr.arpa. PTR record at ns1.cnu.edu. [205.251.199.14]
...took 6 msSearching for ns1.cnu.edu. A record at f.edu-servers.net. [192.35.51.30] ...took 6 ms
Searching for ns1.cnu.edu. A record at ns2.cnu.edu. [205.251.195.140] ...took 6 ms
Nameserver ns1.cnu.edu. reports: No such host 176.51.155.137.in-addr.arpa.
Total elapsed query time: 420 ms