au.edu.tw

Updated: 2023-11-13 07:06:56 UTC (158 days ago) Update now

DNSSEC options (hide)

|?| RR types:
|?| DNSSEC algorithms:
|?| DS digest algorithms:
|?| Denial of existence:
|?| Redundant edges:
|?| Trust anchors:
- Root zone KSK
|?| Additional trusted keys:

Notices

DNSSEC Authentication Chain

RRset status

Secure (6)

au.edu.tw/A
au.edu.tw/AAAA
au.edu.tw/MX
au.edu.tw/NS
au.edu.tw/SOA
au.edu.tw/TXT

DNSKEY/DS/NSEC status

Secure (16)

./DNSKEY (alg 8, id 20326)
./DNSKEY (alg 8, id 46780)
au.edu.tw/DNSKEY (alg 8, id 35554)
au.edu.tw/DNSKEY (alg 8, id 55968)
au.edu.tw/DS (alg 8, id 35554)
au.edu.tw/DS (alg 8, id 35554)
edu.tw/DNSKEY (alg 8, id 11734)
edu.tw/DNSKEY (alg 8, id 30255)
edu.tw/DNSKEY (alg 8, id 32934)
edu.tw/DNSKEY (alg 8, id 4671)
edu.tw/DNSKEY (alg 8, id 54865)
edu.tw/DS (alg 8, id 11734)
edu.tw/DS (alg 8, id 54865)
tw/DNSKEY (alg 8, id 29919)
tw/DNSKEY (alg 8, id 51277)
tw/DS (alg 8, id 51277)

Delegation status

Secure (3)

. to tw
edu.tw to au.edu.tw
tw to edu.tw

Notices

Errors (4)

au.edu.tw zone: The server(s) were not responsive to queries over UDP. (175.98.130.246, 2001:288:1009:1910::246)
au.edu.tw/A: No response was received from the server over UDP (tried 12 times). (175.98.130.246, 2001:288:1009:1910::246, UDP_-_NOEDNS_)
au.edu.tw/NS: No response was received from the server over UDP (tried 12 times). (175.98.130.246, 2001:288:1009:1910::246, UDP_-_NOEDNS_)
edu.tw zone: The server(s) were not responsive to queries over UDP. (2001:288:0:34::133, 2001:288:0:34::134)

Warnings (14)

au.edu.tw/DS (alg 8, id 35554): DNSSEC specification prohibits signing with DS records that use digest algorithm 1 (SHA-1).
au.edu.tw/DS (alg 8, id 35554): DNSSEC specification prohibits signing with DS records that use digest algorithm 1 (SHA-1).
au.edu.tw/DS (alg 8, id 35554): DS records with digest type 1 (SHA-1) are ignored when DS records with digest type 2 (SHA-256) exist in the same RRset.
au.edu.tw/DS (alg 8, id 35554): DS records with digest type 1 (SHA-1) are ignored when DS records with digest type 2 (SHA-256) exist in the same RRset.
edu.tw to au.edu.tw: The following NS name(s) were found in the authoritative NS RRset, but not in the delegation NS RRset (i.e., in the edu.tw zone): j.jal.tw, do.jal.tw
edu.tw/DNSKEY (alg 8, id 11734): 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. (2001:45b1:0:5::24, 2001:45b1:0:5::25, UDP_-_EDNS0_4096_D_KN)
edu.tw/DNSKEY (alg 8, id 30255): 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. (2001:45b1:0:5::24, 2001:45b1:0:5::25, UDP_-_EDNS0_4096_D_KN)
edu.tw/DNSKEY (alg 8, id 32934): 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. (2001:45b1:0:5::24, 2001:45b1:0:5::25, UDP_-_EDNS0_4096_D_KN)
edu.tw/DNSKEY (alg 8, id 4671): 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. (2001:45b1:0:5::24, 2001:45b1:0:5::25, UDP_-_EDNS0_4096_D_KN)
edu.tw/DNSKEY (alg 8, id 54865): 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. (2001:45b1:0:5::24, 2001:45b1:0:5::25, UDP_-_EDNS0_4096_D_KN)
edu.tw/DS (alg 8, id 11734): 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. (2001:45b1:0:5::25, UDP_-_EDNS0_4096_D_KN)
edu.tw/DS (alg 8, id 11734): 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. (2001:45b1:0:5::25, UDP_-_EDNS0_4096_D_KN)
edu.tw/DS (alg 8, id 54865): 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. (2001:45b1:0:5::25, UDP_-_EDNS0_4096_D_KN)
edu.tw/DS (alg 8, id 54865): 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. (2001:45b1:0:5::25, UDP_-_EDNS0_4096_D_KN)