Searching for 175.243.105.162.in-addr.arpa. PTR record at I.ROOT-SERVERS.NET. [192.36.148.17]
...took 12 ms
Searching for 175.243.105.162.in-addr.arpa. PTR record at c.in-addr-servers.arpa. [196.216.169.10] ...took 170 ms
Searching for 175.243.105.162.in-addr.arpa. PTR record at c.in-addr-servers.arpa. [196.216.169.10] ...took 170 ms
Searching for x.arin.net. A record at B.ROOT-SERVERS.NET. [192.228.79.201]
...took 63 ms
Searching for x.arin.net. A record at k.gtld-servers.net. [192.52.178.30] ...took 12 ms
Searching for x.arin.net. A record at u.arin.net. [204.61.216.50] ...took 11 ms
Searching for 175.243.105.162.in-addr.arpa. PTR record at x.arin.net. [199.180.180.63]
...took 158 msSearching for x.arin.net. A record at k.gtld-servers.net. [192.52.178.30] ...took 12 ms
Searching for x.arin.net. A record at u.arin.net. [204.61.216.50] ...took 11 ms
Searching for pkuns.pku.edu.cn. A record at B.ROOT-SERVERS.NET. [192.228.79.201]
...took 25 ms
Searching for pkuns.pku.edu.cn. A record at e.dns.cn. [203.119.29.1] ...took 23 ms
Searching for pkuns.pku.edu.cn. A record at dns.pku.edu.cn. [162.105.129.26] ...took 204 ms
Searching for 175.243.105.162.in-addr.arpa. PTR record at pkuns.pku.edu.cn. [162.105.129.27]
Searching for pkuns.pku.edu.cn. A record at e.dns.cn. [203.119.29.1] ...took 23 ms
Searching for ns2.cernet.net. A record at B.ROOT-SERVERS.NET. [192.228.79.201]
...took 75 ms
Searching for ns2.cernet.net. A record at h.gtld-servers.net. [192.54.112.30] ...took 7 ms
Searching for ns2.cernet.net. A record at dns4.cernet.net. [202.112.0.13] ...took 222 ms
Searching for pkuns.pku.edu.cn. A record at ns2.cernet.net. [103.137.60.203]
...took 201 msSearching for ns2.cernet.net. A record at h.gtld-servers.net. [192.54.112.30] ...took 7 ms
Searching for ns2.cernet.net. A record at dns4.cernet.net. [202.112.0.13] ...took 222 ms
Searching for pkuns.pku.edu.cn. A record at dns.pku.edu.cn. [162.105.129.26] ...took 204 ms
Query timed out (interrupted after 2,002 milliseconds)
Retrying...
Searching for sun1000e.pku.edu.cn. A record at B.ROOT-SERVERS.NET. [192.228.79.201]
...took 19 ms
Searching for sun1000e.pku.edu.cn. A record at b.dns.cn. [203.119.26.1] ...took 19 ms
Searching for sun1000e.pku.edu.cn. A record at dns.edu.cn. [202.38.109.35] ...took 201 ms
Searching for sun1000e.pku.edu.cn. A record at dns.pku.edu.cn. [162.105.129.26] ...took 203 ms
Searching for 175.243.105.162.in-addr.arpa. PTR record at sun1000e.pku.edu.cn. [162.105.129.26]
...took 205 msSearching for sun1000e.pku.edu.cn. A record at b.dns.cn. [203.119.26.1] ...took 19 ms
Searching for sun1000e.pku.edu.cn. A record at dns.edu.cn. [202.38.109.35] ...took 201 ms
Searching for sun1000e.pku.edu.cn. A record at dns.pku.edu.cn. [162.105.129.26] ...took 203 ms
Nameserver sun1000e.pku.edu.cn. reports: No such host 175.243.105.162.in-addr.arpa.
Total elapsed query time: 3,832 ms