Hostname or IP
Type
Searching for 111.157.86.211.in-addr.arpa. PTR record at J.ROOT-SERVERS.NET. [192.58.128.30] ...took 1 ms
Searching for 111.157.86.211.in-addr.arpa. PTR record at f.in-addr-servers.arpa. [193.0.9.1] ...took 9 ms
Searching for apnic.authdns.ripe.net. A record at J.ROOT-SERVERS.NET. [192.58.128.30] ...took 2 ms
Searching for apnic.authdns.ripe.net. A record at a.gtld-servers.net. [192.5.6.30] ...took 3 ms
Searching for apnic.authdns.ripe.net. A record at ns4.apnic.net. [202.12.31.53] ...took 1 ms
Searching for 111.157.86.211.in-addr.arpa. PTR record at apnic.authdns.ripe.net. [193.0.9.9] ...took 8 ms
Searching for dns6.edu.cn. A record at J.ROOT-SERVERS.NET. [192.58.128.30] ...took 2 ms
Searching for dns6.edu.cn. A record at b.dns.cn. [203.119.26.1] ...took 292 ms
Searching for dns6.edu.cn. A record at dns.edu.cn. [202.112.0.35] ...took 235 ms
Searching for 111.157.86.211.in-addr.arpa. PTR record at dns6.edu.cn. [101.4.126.27] ...took 359 ms
Searching for MX.USTC.EDU.CN. A record at J.ROOT-SERVERS.NET. [192.58.128.30] ...took 2 ms
Searching for MX.USTC.EDU.CN. A record at ns.cernet.net. [202.112.0.44]
Query timed out (interrupted after 2,002 milliseconds)
Retrying...
Searching for MX.USTC.EDU.CN. A record at e.dns.CN. [203.119.29.1] ...took 21 ms
Searching for ns2.cernet.net. A record at J.ROOT-SERVERS.NET. [192.58.128.30] ...took 4 ms
Searching for ns2.cernet.net. A record at f.gtld-servers.net. [192.35.51.30] ...took 2 ms
Searching for ns2.cernet.net. A record at dns4.cernet.net. [202.112.0.13] ...took 240 ms
Searching for MX.USTC.EDU.CN. A record at ns2.cernet.net. [101.4.126.203] ...took 350 ms
Searching for MX.USTC.EDU.CN. A record at mx.ustc.edu.cn. [202.38.64.56] ...took 354 ms
Searching for 111.157.86.211.in-addr.arpa. PTR record at MX.USTC.EDU.CN. [202.38.64.56] ...took 381 ms

Nameserver MX.USTC.EDU.CN. reports: No such host 111.157.86.211.in-addr.arpa.



Total elapsed query time: 4,268 ms
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