nlm.gov zone: The server(s) were not responsive to queries over UDP. See RFC 1035, Sec. 4.2. (2607:f220:402:1801::a570:4e6, 2607:f220:404:101::80e7:80fb, 2607:f220:418:4101::80e7:401)
nlm.gov/A: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (2607:f220:402:1801::a570:4e6, 2607:f220:404:101::80e7:80fb, 2607:f220:418:4101::80e7:401, UDP_-_NOEDNS_)
nlm.gov/NS: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (2607:f220:402:1801::a570:4e6, 2607:f220:404:101::80e7:80fb, 2607:f220:418:4101::80e7:401, UDP_-_NOEDNS_)
Warnings (9)
gov to nlm.gov: Authoritative AAAA records exist for lhcns1.nlm.nih.gov, but there are no corresponding AAAA glue records. See RFC 1034, Sec. 4.2.2.
gov to nlm.gov: Authoritative AAAA records exist for lhcns2.nlm.nih.gov, but there are no corresponding AAAA glue records. See RFC 1034, Sec. 4.2.2.
gov to nlm.gov: The following NS name(s) were found in the authoritative NS RRset, but not in the delegation NS RRset (i.e., in the gov zone): ns.nih.gov, ns2.nih.gov, ns3.nih.gov See RFC 1034, Sec. 4.2.2.
nlm.gov/A: 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. See RFC 6891, Sec. 6.2.6. (2607:f220:41e:7055::72, 2607:f220:41e:7055::128, UDP_-_EDNS0_4096_D_KN)
nlm.gov/AAAA: 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. See RFC 6891, Sec. 6.2.6. (2607:f220:41e:7055::72, 2607:f220:41e:7055::128, UDP_-_EDNS0_4096_D_KN)
nlm.gov/MX: 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. See RFC 6891, Sec. 6.2.6. (2607:f220:41e:7055::72, 2607:f220:41e:7055::128, UDP_-_EDNS0_4096_D_KN)
nlm.gov/NS: 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. See RFC 6891, Sec. 6.2.6. (2607:f220:41e:7055::72, 2607:f220:41e:7055::128, UDP_-_EDNS0_4096_D_KN)
nlm.gov/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. See RFC 6891, Sec. 6.2.6. (2607:f220:41e:7055::72, 2607:f220:41e:7055::128, UDP_-_EDNS0_4096_D_KN, UDP_-_EDNS0_4096_D_KN_0x20)
nlm.gov/TXT: 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. See RFC 6891, Sec. 6.2.6. (2607:f220:41e:7055::72, 2607:f220:41e:7055::128, UDP_-_EDNS0_4096_D_KN)