Searching for 21.106.207.41.in-addr.arpa. PTR record at B.ROOT-SERVERS.NET. [192.228.79.201]
...took 19 ms
Searching for 21.106.207.41.in-addr.arpa. PTR record at a.in-addr-servers.arpa. [199.180.182.53] ...took 157 ms
Searching for 21.106.207.41.in-addr.arpa. PTR record at a.in-addr-servers.arpa. [199.180.182.53] ...took 157 ms
Searching for ns2.afrinic.net. A record at D.ROOT-SERVERS.NET. [199.7.91.13]
...took 11 ms
Searching for ns2.afrinic.net. A record at f.gtld-servers.net. [192.35.51.30] ...took 6 ms
Searching for ns2.afrinic.net. A record at ns2.afrinic.net. [196.216.168.10] ...took 189 ms
Searching for 21.106.207.41.in-addr.arpa. PTR record at ns2.afrinic.net. [196.216.168.10]
...took 170 msSearching for ns2.afrinic.net. A record at f.gtld-servers.net. [192.35.51.30] ...took 6 ms
Searching for ns2.afrinic.net. A record at ns2.afrinic.net. [196.216.168.10] ...took 189 ms
Nameserver ns2.afrinic.net. reports: No such host 21.106.207.41.in-addr.arpa.
Total elapsed query time: 552 ms