RRSIG ru/NS alg 8, id 52263: The cryptographic signature of the RRSIG RR does not properly validate.
RRSIG ru/NSEC3PARAM alg 8, id 52263: The cryptographic signature of the RRSIG RR does not properly validate.
RRSIG ru/SOA alg 8, id 52263: The cryptographic signature of the RRSIG RR does not properly validate.
ru zone: The server(s) were not responsive to queries over TCP. (193.232.128.6, 2001:678:15:0:193:232:142:17, 2001:678:17:0:193:232:128:6)
ru zone: The server(s) were not responsive to queries over UDP. (193.232.142.17)
ru/DNSKEY: No response was received from the server over UDP (tried 4 times). (194.85.252.62, UDP_-_EDNS0_512_D_KN)
ru/DNSKEY: No response was received from the server over UDP (tried 8 times). (2001:678:14:0:193:232:156:17, UDP_-_EDNS0_4096_D)
ru/NS: No response was received from the server over UDP (tried 12 times). (193.232.142.17, UDP_-_NOEDNS_)
ru/SOA: The TCP connection was interrupted (ECONNRESET). (2001:678:15:0:193:232:142:17, TCP_-_EDNS0_4096_D_N)
ru/SOA: There was an error communicating with the server over TCP (UNKNOWN). (193.232.128.6, 2001:678:17:0:193:232:128:6, TCP_-_EDNS0_4096_D_N)
Warnings (2)
ru/NSEC3PARAM: 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. (193.232.156.17, UDP_-_EDNS0_4096_D_KN)
ru/SOA: 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. (193.232.128.6, 193.232.156.17, UDP_-_EDNS0_4096_D_KN, UDP_-_EDNS0_4096_D_KN_0x20)