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DNSViz: A DNS visualization tool

usm.edu

DNSSEC options (hide)
  1. |?|
  2. |?|
  3. |?|
  4. |?|
  5. |?|
  6. |?|
  7. |?|
  8. |?|
  9. |?|
  10. |?|
Notices
DNSSEC Authentication Chain

RRset statusRRset status

Insecure (4)
  • usm.edu/A
  • usm.edu/MX
  • usm.edu/NS
  • usm.edu/SOA
Secure (2)
  • edu/SOA
  • edu/SOA

DNSKEY/DS/NSEC statusDNSKEY/DS/NSEC status

Secure (6)
  • ./DNSKEY (alg 8, id 11019)
  • ./DNSKEY (alg 8, id 20326)
  • NSEC3 proving non-existence of usm.edu/DS
  • edu/DNSKEY (alg 8, id 24314)
  • edu/DNSKEY (alg 8, id 28065)
  • edu/DS (alg 8, id 28065)

Delegation statusDelegation status

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

NoticesNotices

Errors (9)
  • usm.edu zone: The server(s) were not responsive to queries over TCP. See RFC 1035, Sec. 4.2. (23.98.146.63)
  • usm.edu zone: The server(s) were not responsive to queries over UDP. See RFC 1035, Sec. 4.2. (131.95.186.31)
  • usm.edu/A: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (131.95.186.31, UDP_-_NOEDNS_)
  • usm.edu/DNSKEY: No response was received from the server over UDP (tried 4 times). See RFC 1035, Sec. 4.2. (23.98.146.63, UDP_-_EDNS0_512_D_KN)
  • usm.edu/MX: No response was received from the server over TCP (tried 12 times). See RFC 1035, Sec. 4.2. (23.98.146.63, TCP_-_EDNS0_4096_D_KN)
  • usm.edu/NS: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (131.95.186.31, UDP_-_NOEDNS_)
  • usm.edu/SOA: No response was received from the server over TCP (tried 3 times). See RFC 1035, Sec. 4.2. (23.98.146.63, TCP_-_EDNS0_4096_D_N)
  • usm.edu/TXT: No response was received from the server over TCP (tried 4 times). See RFC 1035, Sec. 4.2. (23.98.146.63, TCP_-_EDNS0_4096_D)
  • usm.edu/DNSKEY has errors; select the "Denial of existence" DNSSEC option to see them.
Warnings (5)
  • usm.edu/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. (23.98.146.63, UDP_-_EDNS0_4096_D_KN, UDP_-_EDNS0_4096_D_KN_0x20)
  • ociaqkvmup.usm.edu/A has warnings; select the "Denial of existence" DNSSEC option to see them.
  • usm.edu/AAAA has warnings; select the "Denial of existence" DNSSEC option to see them.
  • usm.edu/NSEC3PARAM has warnings; select the "Denial of existence" DNSSEC option to see them.
  • usm.edu/CNAME has warnings; select the "Denial of existence" DNSSEC option to see them.

DNSKEY legend

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