cn zone: The server(s) were not responsive to queries over UDP. (2001:dc7::1, 2001:dc7:1000::1, 2001:dd9::44)
cn/DNSKEY: No response was received from the server over UDP (tried 4 times). (203.119.25.1, UDP_-_EDNS0_512_D_KN)
com.cn zone: The server(s) were not responsive to queries over TCP. (202.112.0.44)
com.cn zone: The server(s) were not responsive to queries over UDP. (2001:dc7::1, 2001:dc7:1000::1, 2001:dd9::44)
com.cn/NS: No response was received from the server over UDP (tried 12 times). (2001:dc7::1, 2001:dc7:1000::1, 2001:dd9::44, UDP_-_NOEDNS_)
com.cn/SOA: No response was received from the server over TCP (tried 3 times). (202.112.0.44, TCP_-_EDNS0_4096_D_N)
Warnings (4)
. to cn: Authoritative AAAA records exist for ns.cernet.net, but there are no corresponding AAAA glue records.
. to cn: The glue address(es) for ns.cernet.net (202.112.0.44) differed from its authoritative address(es) (103.137.60.44, 202.112.0.44).
com.cn/DS (alg 8, id 46387): No response was received until the UDP payload size was decreased, indicating that the server might be attempting to send a payload that exceeds the path maximum transmission unit (PMTU) size. (203.119.25.1, UDP_-_EDNS0_4096_D_KN)
com.cn/DS (alg 8, id 46387): No response was received until the UDP payload size was decreased, indicating that the server might be attempting to send a payload that exceeds the path maximum transmission unit (PMTU) size. (203.119.25.1, UDP_-_EDNS0_4096_D_KN)