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DNSViz: A DNS visualization tool

umbc.edu

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

RRset statusRRset status

Secure (5)
  • umbc.edu/A
  • umbc.edu/MX
  • umbc.edu/NS
  • umbc.edu/SOA
  • umbc.edu/TXT

DNSKEY/DS/NSEC statusDNSKEY/DS/NSEC status

Secure (8)
  • ./DNSKEY (alg 8, id 20326)
  • ./DNSKEY (alg 8, id 46594)
  • edu/DNSKEY (alg 8, id 28065)
  • edu/DNSKEY (alg 8, id 33233)
  • edu/DS (alg 8, id 28065)
  • umbc.edu/DNSKEY (alg 5, id 62866)
  • umbc.edu/DNSKEY (alg 5, id 645)
  • umbc.edu/DS (alg 5, id 62866)

Delegation statusDelegation status

Secure (2)
  • . to edu
  • edu to umbc.edu

NoticesNotices

Errors (13)
  • umbc.edu zone: The server(s) were not responsive to queries over UDP. (2620:0:5301:2::2:2, 2620:0:5301:2::2:3)
  • umbc.edu/A: No response was received from the server over UDP (tried 12 times). (2620:0:5301:2::2:2, 2620:0:5301:2::2:3, UDP_-_NOEDNS_)
  • umbc.edu/MX: DNSSEC was effectively downgraded because no response was received from the server over UDP (tried 10 times) with the DO bit set. (130.85.1.6, UDP_-_EDNS0_4096_)
  • umbc.edu/MX: No response was received from the server over UDP (tried 10 times) until the DO EDNS flag was cleared (however, this server appeared to respond legitimately to other queries with the DO EDNS flag set). (130.85.1.6, UDP_-_EDNS0_4096_D_K)
  • umbc.edu/MX: No response was received from the server over UDP (tried 4 times). (130.85.1.6, UDP_-_EDNS0_512_D_K)
  • umbc.edu/MX: The DNSSEC records necessary to validate the response could not be retrieved from the server. (130.85.1.6, UDP_-_EDNS0_4096_D_K)
  • umbc.edu/NS: DNSSEC was effectively downgraded because no response was received from the server over UDP (tried 10 times) with the DO bit set. (130.85.1.6, UDP_-_EDNS0_4096_)
  • umbc.edu/NS: No response was received from the server over UDP (tried 10 times) until the DO EDNS flag was cleared (however, this server appeared to respond legitimately to other queries with the DO EDNS flag set). (130.85.1.6, UDP_-_EDNS0_4096_D_K)
  • umbc.edu/NS: No response was received from the server over UDP (tried 12 times). (2620:0:5301:2::2:2, 2620:0:5301:2::2:3, UDP_-_NOEDNS_)
  • umbc.edu/NS: The DNSSEC records necessary to validate the response could not be retrieved from the server. (130.85.1.6, UDP_-_EDNS0_4096_D_K)
  • umbc.edu/SOA: DNSSEC was effectively downgraded because no response was received from the server over UDP (tried 10 times) with the DO bit set. (130.85.1.6, UDP_-_EDNS0_4096_)
  • umbc.edu/SOA: No response was received from the server over UDP (tried 10 times) until the DO EDNS flag was cleared (however, this server appeared to respond legitimately to other queries with the DO EDNS flag set). (130.85.1.6, UDP_-_EDNS0_4096_D_K)
  • umbc.edu/SOA: The DNSSEC records necessary to validate the response could not be retrieved from the server. (130.85.1.6, UDP_-_EDNS0_4096_D_K)
Warnings (13)
  • RRSIG umbc.edu/A alg 5, id 645: DNSSEC specification recommends not signing with DNSSEC algorithm 5 (RSASHA1).
  • RRSIG umbc.edu/DNSKEY alg 5, id 62866: DNSSEC specification recommends not signing with DNSSEC algorithm 5 (RSASHA1).
  • RRSIG umbc.edu/DNSKEY alg 5, id 62866: DNSSEC specification recommends not signing with DNSSEC algorithm 5 (RSASHA1).
  • RRSIG umbc.edu/DNSKEY alg 5, id 645: DNSSEC specification recommends not signing with DNSSEC algorithm 5 (RSASHA1).
  • RRSIG umbc.edu/DNSKEY alg 5, id 645: DNSSEC specification recommends not signing with DNSSEC algorithm 5 (RSASHA1).
  • RRSIG umbc.edu/MX alg 5, id 645: DNSSEC specification recommends not signing with DNSSEC algorithm 5 (RSASHA1).
  • RRSIG umbc.edu/NS alg 5, id 645: DNSSEC specification recommends not signing with DNSSEC algorithm 5 (RSASHA1).
  • RRSIG umbc.edu/SOA alg 5, id 645: DNSSEC specification recommends not signing with DNSSEC algorithm 5 (RSASHA1).
  • RRSIG umbc.edu/TXT alg 5, id 645: DNSSEC specification recommends not signing with DNSSEC algorithm 5 (RSASHA1).
  • edu to umbc.edu: Authoritative AAAA records exist for dnsexternal.umbc.edu, but there are no corresponding AAAA glue records.
  • edu to umbc.edu: Authoritative AAAA records exist for dnsexternal1.umbc.edu, but there are no corresponding AAAA glue records.
  • edu to umbc.edu: Authoritative AAAA records exist for dnsexternal2.umbc.edu, but there are no corresponding AAAA glue records.
  • umbc.edu/SOA: No response was received from the server over UDP (tried 6 times) until the COOKIE EDNS option was removed (however, this server appeared to respond legitimately to other queries with the COOKIE EDNS option present). (130.85.1.6, UDP_-_EDNS0_4096_D_K_0x20)

DNSKEY legend

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