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DNSViz: A DNS visualization tool

csulb.edu

Updated: 2024-11-13 10:24:20 UTC (62 days ago) Update now
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DNSSEC options (hide)
  1. |?|
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  3. |?|
  4. |?|
  5. |?|
  6. |?|
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Notices
DNSSEC Authentication Chain

RRset statusRRset status

Insecure (5)
  • csulb.edu/A
  • csulb.edu/MX
  • csulb.edu/NS
  • csulb.edu/SOA
  • csulb.edu/TXT
Secure (1)
  • edu/SOA

DNSKEY/DS/NSEC statusDNSKEY/DS/NSEC status

Secure (6)
  • ./DNSKEY (alg 8, id 20326)
  • ./DNSKEY (alg 8, id 61050)
  • NSEC3 proving non-existence of csulb.edu/DS
  • edu/DNSKEY (alg 13, id 26800)
  • edu/DNSKEY (alg 13, id 35663)
  • edu/DS (alg 13, id 35663)

Delegation statusDelegation status

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

NoticesNotices

Errors (24)
  • csulb.edu zone: The server(s) were not responsive to queries over TCP. See RFC 1035, Sec. 4.2. (2607:f380:a54:ff04::17)
  • csulb.edu zone: The server(s) were not responsive to queries over UDP. See RFC 1035, Sec. 4.2. (2607:f380:a54:ff04::21)
  • csulb.edu/A: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (2607:f380:a54:ff04::17, 2607:f380:a54:ff04::21, UDP_-_NOEDNS_)
  • csulb.edu/DNSKEY: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (2607:f380:a54:ff04::17, UDP_-_NOEDNS_)
  • csulb.edu/DNSKEY: No response was received from the server over UDP (tried 4 times). See RFC 1035, Sec. 4.2. (2607:f380:a54:ff04::17, UDP_-_EDNS0_512_D_KN)
  • csulb.edu/MX: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (2607:f380:a54:ff04::17, UDP_-_NOEDNS_)
  • csulb.edu/MX: No response was received from the server over UDP (tried 4 times). See RFC 1035, Sec. 4.2. (2607:f380:a54:ff04::17, UDP_-_EDNS0_512_D_KN)
  • csulb.edu/NS: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (2607:f380:a54:ff04::21, UDP_-_NOEDNS_)
  • csulb.edu/SOA: No response was received from the server over TCP (tried 3 times). See RFC 1035, Sec. 4.2. (2607:f380:a54:ff04::17, TCP_-_EDNS0_4096_D_N)
  • csulb.edu/SOA: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (2607:f380:a54:ff04::17, UDP_-_NOEDNS_)
  • csulb.edu/TXT: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (2607:f380:a54:ff04::17, UDP_-_NOEDNS_)
  • edu/DS (alg 13, id 35663): DNSSEC was effectively downgraded because no response was received from the server over UDP (tried 10 times) with the DO bit set. See RFC 4035, Sec. 3.2.1. (192.33.4.12, UDP_-_EDNS0_4096_)
  • edu/DS (alg 13, id 35663): DNSSEC was effectively downgraded because no response was received from the server over UDP (tried 10 times) with the DO bit set. See RFC 4035, Sec. 3.2.1. (192.33.4.12, UDP_-_EDNS0_4096_)
  • edu/DS (alg 13, id 35663): 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). See RFC 6891, Sec. 6.1.4. (192.33.4.12, UDP_-_EDNS0_4096_D_KN)
  • edu/DS (alg 13, id 35663): 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). See RFC 6891, Sec. 6.1.4. (192.33.4.12, UDP_-_EDNS0_4096_D_KN)
  • edu/DS (alg 13, id 35663): The DNSSEC records necessary to validate the response could not be retrieved from the server. See RFC 4035, Sec. 3.1.1, RFC 4035, Sec. 3.1.3. (192.33.4.12, UDP_-_EDNS0_4096_D_KN)
  • edu/DS (alg 13, id 35663): The DNSSEC records necessary to validate the response could not be retrieved from the server. See RFC 4035, Sec. 3.1.1, RFC 4035, Sec. 3.1.3. (192.33.4.12, UDP_-_EDNS0_4096_D_KN)
  • csulb.edu/NSEC3PARAM has errors; select the "Denial of existence" DNSSEC option to see them.
  • csulb.edu/CNAME has errors; select the "Denial of existence" DNSSEC option to see them.
  • csulb.edu/DNSKEY has errors; select the "Denial of existence" DNSSEC option to see them.
  • lgron.ep3xa.csulb.edu/A has errors; select the "Denial of existence" DNSSEC option to see them.
  • csulb.edu/AAAA has errors; select the "Denial of existence" DNSSEC option to see them.
  • csulb.edu/CDNSKEY has errors; select the "Denial of existence" DNSSEC option to see them.
  • csulb.edu/CDS has errors; select the "Denial of existence" DNSSEC option to see them.
Warnings (4)
  • edu to csulb.edu: Authoritative AAAA records exist for ns3.csulb.edu, but there are no corresponding AAAA glue records. See RFC 1034, Sec. 4.2.2.
  • edu to csulb.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): ns1.csulb.edu, ns4.csulb.edu See RFC 1034, Sec. 4.2.2.
  • edu to csulb.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: ns5.cenic.org, ns6.cenic.org See RFC 1034, Sec. 4.2.2.
  • edu to csulb.edu: The glue address(es) for ns3.csulb.edu (134.139.19.53) differed from its authoritative address(es) (134.139.19.5, 134.139.19.53). See RFC 1034, Sec. 4.2.2.

DNSKEY legend

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