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DNSViz: A DNS visualization tool

nccu.edu

Updated: 2018-03-18 11:25:25 UTC (370 days ago) Update now
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DNSSEC options (hide)
  1. |?|
  2. |?|
  3. |?|
  4. |?|
  5. |?|
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Notices
DNSSEC Authentication Chain

RRset statusRRset status

Insecure (5)
  • nccu.edu/A
  • nccu.edu/MX
  • nccu.edu/NS
  • nccu.edu/SOA
  • nccu.edu/TXT
Secure (2)
  • edu/SOA
  • edu/SOA

DNSKEY/DS/NSEC statusDNSKEY/DS/NSEC status

Secure (7)
  • ./DNSKEY (alg 8, id 19036)
  • ./DNSKEY (alg 8, id 20326)
  • ./DNSKEY (alg 8, id 41824)
  • NSEC3 proving non-existence of nccu.edu/DS
  • edu/DNSKEY (alg 8, id 14375)
  • edu/DNSKEY (alg 8, id 28065)
  • edu/DS (alg 8, id 28065)

Delegation statusDelegation status

Insecure (1)
  • edu to nccu.edu
Secure (1)
  • . to edu

NoticesNotices

Errors (4)
  • nccu.edu zone: The following NS name(s) resolved to IP address(es) in private IP address space: dns02.nccu.edu
  • nccu.edu zone: The server(s) were not responsive to queries over UDP. (152.9.6.26)
  • nccu.edu/A: No response was received from the server over UDP (tried 8 times). (152.9.6.26, UDP_-_NOEDNS_)
  • nccu.edu/NS: No response was received from the server over UDP (tried 8 times). (152.9.6.26, UDP_-_NOEDNS_)
Warnings (1)
  • edu to nccu.edu: The glue address(es) for dns02.nccu.edu (152.9.6.26) differed from its authoritative address(es) (10.141.1.90).

DNSKEY legend

Full legend
SEP bit setSEP bit set
Revoke bit setRevoke bit set
Trust anchorTrust anchor
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DNSSEC authentication graph