Searching for 50.0.234.129.in-addr.arpa. PTR record at K.ROOT-SERVERS.NET. [193.0.14.129]
...took 32 ms
Searching for 50.0.234.129.in-addr.arpa. PTR record at b.in-addr-servers.arpa. [199.253.183.183] ...took 7 ms
Searching for 50.0.234.129.in-addr.arpa. PTR record at b.in-addr-servers.arpa. [199.253.183.183] ...took 7 ms
Searching for r.arin.net. A record at F.ROOT-SERVERS.NET. [192.5.5.241]
...took 6 ms
Searching for r.arin.net. A record at j.gtld-servers.net. [192.48.79.30] ...took 12 ms
Searching for r.arin.net. A record at ns1.arin.net. [199.212.0.108] ...took 91 ms
Searching for 50.0.234.129.in-addr.arpa. PTR record at r.arin.net. [199.180.180.63]
...took 91 msSearching for r.arin.net. A record at j.gtld-servers.net. [192.48.79.30] ...took 12 ms
Searching for r.arin.net. A record at ns1.arin.net. [199.212.0.108] ...took 91 ms
Searching for infoblox1.dur.ac.uk. A record at F.ROOT-SERVERS.NET. [192.5.5.241]
...took 6 ms
Searching for infoblox1.dur.ac.uk. A record at nsc.nic.uk. [156.154.102.3] ...took 6 ms
Searching for infoblox1.dur.ac.uk. A record at infoblox2.dur.ac.uk. [129.234.4.9] ...took 28 ms
Searching for 50.0.234.129.in-addr.arpa. PTR record at infoblox1.dur.ac.uk. [129.234.4.13]
...took 28 msSearching for infoblox1.dur.ac.uk. A record at nsc.nic.uk. [156.154.102.3] ...took 6 ms
Searching for ns1.surfnet.nl. A record at F.ROOT-SERVERS.NET. [192.5.5.241]
...took 7 ms
Searching for ns1.surfnet.nl. A record at ns3.dns.nl. [194.0.25.24] ...took 6 ms
Searching for ns1.surfnet.nl. A record at ns2.surfnet.nl. [192.87.36.2] ...took 14 ms
Searching for infoblox1.dur.ac.uk. A record at ns1.surfnet.nl. [192.87.106.101]
...took 12 msSearching for ns1.surfnet.nl. A record at ns3.dns.nl. [194.0.25.24] ...took 6 ms
Searching for ns1.surfnet.nl. A record at ns2.surfnet.nl. [192.87.36.2] ...took 14 ms
Searching for infoblox1.dur.ac.uk. A record at infoblox2.dur.ac.uk. [129.234.4.9] ...took 28 ms
Nameserver infoblox1.dur.ac.uk. reports: No such host 50.0.234.129.in-addr.arpa.
Total elapsed query time: 346 ms