View on GitHub

DNSViz: A DNS visualization tool

ndu.edu

Updated: 2021-09-17 18:28:38 UTC (1011 days ago) Update now
« Previous analysis | Next analysis »
DNSSEC options (hide)
  1. |?|
  2. |?|
  3. |?|
  4. |?|
  5. |?|
  6. |?|
  7. |?|
  8. |?|
  9. |?|
Notices
DNSSEC Authentication Chain

RRset statusRRset status

Bogus (4)
  • ndu.edu/MX
  • ndu.edu/NS
  • ndu.edu/SOA
  • ndu.edu/TXT

DNSKEY/DS/NSEC statusDNSKEY/DS/NSEC status

Secure (6)
  • ./DNSKEY (alg 8, id 20326)
  • ./DNSKEY (alg 8, id 26838)
  • edu/DNSKEY (alg 8, id 28065)
  • edu/DNSKEY (alg 8, id 37868)
  • edu/DS (alg 8, id 28065)
  • ndu.edu/DS (alg 8, id 61744)
Non_existent (1)
  • ndu.edu/DNSKEY (alg 8, id 61744)

Delegation statusDelegation status

Bogus (1)
  • edu to ndu.edu
Secure (1)
  • . to edu

NoticesNotices

Errors (15)
  • edu to ndu.edu: No valid RRSIGs made by a key corresponding to a DS RR were found covering the DNSKEY RRset, resulting in no secure entry point (SEP) into the zone. See RFC 4035, Sec. 2.2, RFC 6840, Sec. 5.11. (216.21.19.239, UDP_-_EDNS0_4096_D_KN, UDP_-_EDNS0_512_D_KN)
  • edu to ndu.edu: The DS RRset for the zone included algorithm 8 (RSASHA256), but no DS RR matched a DNSKEY with algorithm 8 that signs the zone's DNSKEY RRset. See RFC 4035, Sec. 2.2, RFC 6840, Sec. 5.11. (216.21.19.239, UDP_-_EDNS0_4096_D_KN, UDP_-_EDNS0_512_D_KN)
  • ndu.edu zone: The server(s) were not responsive to queries over UDP. See RFC 1035, Sec. 4.2. (216.21.18.48)
  • ndu.edu zone: There was an error resolving the following NS name(s) to address(es): ndudns02.ndu.edu, ndunsvr216.ndu.edu, ndussvr217.ndu.edu
  • ndu.edu/MX: No RRSIG covering the RRset was returned in the response. See RFC 4035, Sec. 3.1.1. (216.21.19.239, UDP_-_EDNS0_4096_D_KN, UDP_-_EDNS0_512_D_KN)
  • ndu.edu/NS: No RRSIG covering the RRset was returned in the response. See RFC 4035, Sec. 3.1.1. (216.21.19.239, UDP_-_EDNS0_4096_D_KN)
  • ndu.edu/NS: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (216.21.18.48, UDP_-_NOEDNS_)
  • ndu.edu/SOA: No RRSIG covering the RRset was returned in the response. See RFC 4035, Sec. 3.1.1. (216.21.19.239, TCP_-_EDNS0_4096_D_N, UDP_-_EDNS0_4096_D_KN, UDP_-_EDNS0_4096_D_KN_0x20)
  • ndu.edu/TXT: No RRSIG covering the RRset was returned in the response. See RFC 4035, Sec. 3.1.1. (216.21.19.239, UDP_-_EDNS0_4096_D_KN)
  • ndu.edu/AAAA has errors; select the "Denial of existence" DNSSEC option to see them.
  • ndu.edu/NSEC3PARAM has errors; select the "Denial of existence" DNSSEC option to see them.
  • ndu.edu/A has errors; select the "Denial of existence" DNSSEC option to see them.
  • ndu.edu/CNAME has errors; select the "Denial of existence" DNSSEC option to see them.
  • ndu.edu/DNSKEY has errors; select the "Denial of existence" DNSSEC option to see them.
  • xba1s5hlem.ndu.edu/A has errors; select the "Denial of existence" DNSSEC option to see them.
Warnings (2)
  • edu to ndu.edu: The following NS name(s) were found in the authoritative NS RRset, but not in the delegation NS RRset (i.e., in the edu zone): ndussvr217.ndu.edu, ndunsvr216.ndu.edu See RFC 1034, Sec. 4.2.2.
  • edu to ndu.edu: The following NS name(s) were found in the delegation NS RRset (i.e., in the edu zone), but not in the authoritative NS RRset: ndudns01.ndu.edu, ndudns02.ndu.edu See RFC 1034, Sec. 4.2.2.

DNSKEY legend

Full legend
SEP bit setSEP bit set
Revoke bit setRevoke bit set
Trust anchorTrust anchor
Download: png | svg
Warning JavaScript is required to make the graph below interactive.
DNSSEC authentication graph