Searching for 17.159.220.128.in-addr.arpa. PTR record at A.ROOT-SERVERS.NET. [198.41.0.4]
...took 6 ms
Searching for 17.159.220.128.in-addr.arpa. PTR record at f.in-addr-servers.arpa. [193.0.9.1] ...took 12 ms
Searching for 17.159.220.128.in-addr.arpa. PTR record at f.in-addr-servers.arpa. [193.0.9.1] ...took 12 ms
Searching for r.arin.net. A record at D.ROOT-SERVERS.NET. [199.7.91.13]
...took 6 ms
Searching for r.arin.net. A record at d.gtld-servers.net. [192.31.80.30] ...took 24 ms
Searching for r.arin.net. A record at ns1.arin.net. [199.212.0.108] ...took 99 ms
Searching for 17.159.220.128.in-addr.arpa. PTR record at r.arin.net. [199.180.180.63]
...took 101 msSearching for r.arin.net. A record at d.gtld-servers.net. [192.31.80.30] ...took 24 ms
Searching for r.arin.net. A record at ns1.arin.net. [199.212.0.108] ...took 99 ms
Searching for ens1.jhmi.edu. A record at H.ROOT-SERVERS.NET. [198.97.190.53]
...took 6 ms
Searching for ens1.jhmi.edu. A record at k.edu-servers.net. [192.52.178.30] ...took 12 ms
Searching for ens1.jhmi.edu. A record at ens1.jhu.edu. [128.220.1.75] ...took 95 ms
Searching for 17.159.220.128.in-addr.arpa. PTR record at ens1.jhmi.edu. [162.129.253.134]
...took 96 msSearching for ens1.jhmi.edu. A record at k.edu-servers.net. [192.52.178.30] ...took 12 ms
Searching for ens1.jhmi.edu. A record at ens1.jhu.edu. [128.220.1.75] ...took 95 ms
Nameserver ens1.jhmi.edu. reports: No such host 17.159.220.128.in-addr.arpa.
Total elapsed query time: 457 ms