Searching for 115.81.156.131.in-addr.arpa. PTR record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 15 ms
Searching for 115.81.156.131.in-addr.arpa. PTR record at d.in-addr-servers.arpa. [200.10.60.53] ...took 117 ms
Searching for 115.81.156.131.in-addr.arpa. PTR record at d.in-addr-servers.arpa. [200.10.60.53] ...took 117 ms
Searching for u.arin.net. A record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 15 ms
Searching for u.arin.net. A record at m.gtld-servers.net. [192.55.83.30] ...took 12 ms
Searching for u.arin.net. A record at ns1.arin.net. [199.212.0.108] ...took 91 ms
Searching for 115.81.156.131.in-addr.arpa. PTR record at u.arin.net. [204.61.216.50]
...took 6 msSearching for u.arin.net. A record at m.gtld-servers.net. [192.55.83.30] ...took 12 ms
Searching for u.arin.net. A record at ns1.arin.net. [199.212.0.108] ...took 91 ms
Searching for dns-ext1.niu.edu. A record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 15 ms
Searching for dns-ext1.niu.edu. A record at i.edu-servers.net. [192.43.172.30] ...took 7 ms
Searching for dns-ext1.niu.edu. A record at dns-ext1.niu.edu. [131.156.16.11] ...took 111 ms
Searching for 115.81.156.131.in-addr.arpa. PTR record at dns-ext1.niu.edu. [131.156.16.11]
...took 111 msSearching for dns-ext1.niu.edu. A record at i.edu-servers.net. [192.43.172.30] ...took 7 ms
Searching for dns-ext1.niu.edu. A record at dns-ext1.niu.edu. [131.156.16.11] ...took 111 ms
Nameserver dns-ext1.niu.edu. reports: No such host 115.81.156.131.in-addr.arpa.
Total elapsed query time: 500 ms