Searching for 227.251.55.1.in-addr.arpa. PTR record at B.ROOT-SERVERS.NET. [192.228.79.201]
...took 25 ms
Searching for 227.251.55.1.in-addr.arpa. PTR record at b.in-addr-servers.arpa. [199.253.183.183] ...took 13 ms
REFUSED
Searching for 227.251.55.1.in-addr.arpa. PTR record at dns1.fpt.vn. [210.245.0.131]
Searching for 227.251.55.1.in-addr.arpa. PTR record at dns2.fpt.vn. [210.245.0.10] ...took 304 ms
REFUSED
Searching for 227.251.55.1.in-addr.arpa. PTR record at b.in-addr-servers.arpa. [199.253.183.183] ...took 13 ms
Searching for apnic.authdns.ripe.net. A record at D.ROOT-SERVERS.NET. [199.7.91.13]
...took 11 ms
Searching for apnic.authdns.ripe.net. A record at h.gtld-servers.net. [192.54.112.30] ...took 6 ms
Searching for apnic.authdns.ripe.net. A record at ns3.afrinic.net. [204.61.216.100] ...took 11 ms
Searching for 227.251.55.1.in-addr.arpa. PTR record at apnic.authdns.ripe.net. [193.0.9.9]
...took 12 msSearching for apnic.authdns.ripe.net. A record at h.gtld-servers.net. [192.54.112.30] ...took 6 ms
Searching for apnic.authdns.ripe.net. A record at ns3.afrinic.net. [204.61.216.100] ...took 11 ms
Searching for dns2.fpt.vn. A record at K.ROOT-SERVERS.NET. [193.0.14.129]
...took 12 ms
Searching for dns2.fpt.vn. A record at h.dns-servers.vn. [202.47.142.105] ...took 211 ms
Searching for dns2.fpt.vn. A record at dns-b.fpt.vn. [118.69.166.10] ...took 327 ms
Searching for 227.251.55.1.in-addr.arpa. PTR record at dns2.fpt.vn. [210.245.0.10]
...took 309 msSearching for dns2.fpt.vn. A record at h.dns-servers.vn. [202.47.142.105] ...took 211 ms
Searching for dns2.fpt.vn. A record at dns-b.fpt.vn. [118.69.166.10] ...took 327 ms
REFUSED
Searching for dns1.fpt.vn. A record at I.ROOT-SERVERS.NET. [192.36.148.17]
...took 11 ms
Searching for dns1.fpt.vn. A record at b.dns-servers.vn. [203.119.73.105] ...took 248 ms
Searching for dns1.fpt.vn. A record at dns-a.fpt.vn. [210.245.86.239] ...took 208 ms
Searching for 227.251.55.1.in-addr.arpa. PTR record at dns1.fpt.vn. [210.245.0.131]
Searching for dns1.fpt.vn. A record at b.dns-servers.vn. [203.119.73.105] ...took 248 ms
Searching for dns1.fpt.vn. A record at dns-a.fpt.vn. [210.245.86.239] ...took 208 ms
Query timed out (interrupted after 2,002 milliseconds)
Retrying...Searching for 227.251.55.1.in-addr.arpa. PTR record at dns1.fpt.vn. [210.245.0.131]
Query timed out (interrupted after 2,002 milliseconds)
Retrying...Searching for 227.251.55.1.in-addr.arpa. PTR record at dns2.fpt.vn. [210.245.0.10] ...took 304 ms
REFUSED
None of the nameservers responded correctly.
Total elapsed query time: 5,712 ms