DNS Report for centos.org

• ns1.centos.org

  • IPv4: 8.43.84.215
  • IPv6: No IPv6 found
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): N/A seconds
  • Recursive: N/A

• ns2.centos.org

  • IPv4: 38.145.60.38
  • IPv6: No IPv6 found
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): N/A seconds
  • Recursive: N/A

Nameserver Count - OK

• ns1.centos.org

  • Status: Responded
  • IP(s): 52.56.83.118, 81.171.33.202, 81.171.33.201
  • TTL: 600 seconds
  • Recursive Queries: Does not allow recursive queries
  • TCP Connectivity: TCP connection failed (Response code: REFUSED)

• ns2.centos.org

  • Status: Responded
  • IP(s): 52.56.83.118, 81.171.33.202, 81.171.33.201
  • TTL: 600 seconds
  • Recursive Queries: Does not allow recursive queries
  • TCP Connectivity: TCP connection failed (Response code: REFUSED)

ns1.centos.org

• Serial: 2024072901
• Refresh: 28800
• Retry: 7200
• Expire: 2400000
• Minimum TTL: 3600

ns2.centos.org

• Serial: 2024072901
• Refresh: 28800
• Retry: 7200
• Expire: 2400000
• Minimum TTL: 3600

Serial: 2024072901 - OK

REFRESH: 28800 - OK

RETRY: 7200 - OK

EXPIRE: 2400000 - OK

MINIMUM TTL: 3600 - OK

ns1.centos.org

• 10 mail.centos.org ( 8.43.84.214 )

ns2.centos.org

• 10 mail.centos.org ( 8.43.84.214 )

MX Record Consistency - OK

MX Record Count - Warning: Only one MX record

• 214.84.43.8.in-addr.arpa -> mmx1.rdu2.centos.org

PTR Records - OK

• Signed: No
• Validation: Failed
• DNSKEY Records: None
• DS Records in parent zone: None
• DS at Parent: None

DNSSEC - Note: Domain is not signed with DNSSEC

Error: No DNSSEC records found

SPF Record Published: Passed

Multiple SPF Records: Passed

SPF Record 1:

• Record: v=spf1 mx ip4:8.43.84.214 ip4:8.43.84.213 ip6:2620:52:3::214 ip4:176.67.173.46 ip6:2a02:2498:1:3d:21d:9ff:fe65:aedd ip4:164.177.170.49 ip4:85.214.222.242 ip4:50.28.24.115 ip4:85.13.208.9 ip6:2a01:c0:2:4:0:55ff:fe0d:d009 ip4:85.13.226.35
• SPF Syntax: Failed
• Deprecated Elements: Passed
• IP Addresses: 8.43.84.214, 8.43.84.213, 2620:52:3::214, 176.67.173.46, 2a02:2498:1:3d:21d:9ff:fe65:aedd, 164.177.170.49, 85.214.222.242, 50.28.24.115, 85.13.208.9, 2a01:c0:2:4:0:55ff:fe0d:d009, 85.13.226.35
• Includes:
• DNS Lookups: 4
• Void Lookups: Passed
• Escaping Chars: Not Present
• All Mechanism: Not Present

Warnings:

• SPF record doesn't contain an 'all' mechanism

Errors:

• SPF record syntax is invalid

• DKIM Records Found: No

Warnings:

• No DKIM records found for common selectors

• Record: None
• Syntax: Invalid
• Policy: None
• RUA (Aggregate Reports):

DMARC External Validation:

• All external domains in your DMARC record are giving permission to send them DMARC reports.

Errors:

• DMARC record does not exist