Searching for 76.4.234.129.in-addr.arpa. PTR record at C.ROOT-SERVERS.NET. [192.33.4.12]
...took 8 ms
Searching for 76.4.234.129.in-addr.arpa. PTR record at f.in-addr-servers.arpa. [193.0.9.1] ...took 12 ms
Searching for 76.4.234.129.in-addr.arpa. PTR record at f.in-addr-servers.arpa. [193.0.9.1] ...took 12 ms
Searching for z.arin.net. A record at I.ROOT-SERVERS.NET. [192.36.148.17]
...took 11 ms
Searching for z.arin.net. A record at f.gtld-servers.net. [192.35.51.30] ...took 6 ms
Searching for z.arin.net. A record at ns3.arin.net. [199.5.26.108] ...took 156 ms
Searching for 76.4.234.129.in-addr.arpa. PTR record at z.arin.net. [199.180.180.63]
...took 155 msSearching for z.arin.net. A record at f.gtld-servers.net. [192.35.51.30] ...took 6 ms
Searching for z.arin.net. A record at ns3.arin.net. [199.5.26.108] ...took 156 ms
Searching for infoblox2.dur.ac.uk. A record at B.ROOT-SERVERS.NET. [192.228.79.201]
...took 76 ms
Searching for infoblox2.dur.ac.uk. A record at nsc.nic.uk. [156.154.102.3] ...took 5 ms
Searching for infoblox2.dur.ac.uk. A record at infoblox1.dur.ac.uk. [129.234.4.13] ...took 42 ms
Searching for 76.4.234.129.in-addr.arpa. PTR record at infoblox2.dur.ac.uk. [129.234.4.9]
...took 41 msSearching for infoblox2.dur.ac.uk. A record at nsc.nic.uk. [156.154.102.3] ...took 5 ms
Searching for dns-3.dfn.de. A record at B.ROOT-SERVERS.NET. [192.228.79.201]
...took 19 ms
Searching for dns-3.dfn.de. A record at f.nic.de. [81.91.164.5] ...took 5 ms
Searching for dns-3.dfn.de. A record at ns3.dfn.de. [194.95.236.67] ...took 15 ms
Searching for infoblox2.dur.ac.uk. A record at dns-3.dfn.de. [193.174.75.58]
...took 10 msSearching for dns-3.dfn.de. A record at f.nic.de. [81.91.164.5] ...took 5 ms
Searching for dns-3.dfn.de. A record at ns3.dfn.de. [194.95.236.67] ...took 15 ms
Searching for infoblox2.dur.ac.uk. A record at infoblox1.dur.ac.uk. [129.234.4.13] ...took 42 ms
Nameserver infoblox2.dur.ac.uk. reports: No such host 76.4.234.129.in-addr.arpa.
Total elapsed query time: 561 ms