Reverse DNS Lookup for 129.105.44.80

Searching for 80.44.105.129.in-addr.arpa. PTR record at M.ROOT-SERVERS.NET. [202.12.27.33] ...took 14 ms
Searching for 80.44.105.129.in-addr.arpa. PTR record at a.in-addr-servers.arpa. [199.180.182.53] ...took 90 ms

Searching for y.arin.net. A record at M.ROOT-SERVERS.NET. [202.12.27.33] ...took 14 ms
Searching for y.arin.net. A record at b.gtld-servers.net. [192.33.14.30] ...took 31 ms
Searching for y.arin.net. A record at ns1.arin.net. [199.212.0.108] ...took 92 ms

Searching for 80.44.105.129.in-addr.arpa. PTR record at y.arin.net. [192.82.134.30] ...took 6 ms

Searching for ns3.northwestern.edu. A record at M.ROOT-SERVERS.NET. [202.12.27.33] ...took 14 ms
Searching for ns3.northwestern.edu. A record at j.edu-servers.net. [192.48.79.30] ...took 13 ms
Searching for ns3.northwestern.edu. A record at cicada.northwestern.edu. [18.216.244.66] ...took 114 ms

Searching for ns3.northwestern.edu. AAAA record at M.ROOT-SERVERS.NET. [202.12.27.33] ...took 15 ms
Searching for ns3.northwestern.edu. AAAA record at m.edu-servers.net. [192.55.83.30] ...took 11 ms
Searching for ns3.northwestern.edu. AAAA record at accuvax.northwestern.edu. [129.105.49.100] ...took 132 ms

Nameserver accuvax.northwestern.edu. reports: No such host ns3.northwestern.edu.

Total elapsed query time: 546 ms

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