DNS Report for neu.edu.cn

• ns.neu.edu.cn

  • IPv4: 202.118.1.35
  • IPv6: 2001:da8:9000::35
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): 30 seconds
  • Recursive: N/A

• ns1.neu.edu.cn

  • IPv4: 202.118.1.45
  • IPv6: 2001:da8:9000::45
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): 30 seconds
  • Recursive: N/A

• ns2.neu.edu.cn

  • IPv4: 202.112.31.197
  • IPv6: No IPv6 found
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): N/A seconds
  • Recursive: N/A

Nameserver Count - OK

• ns.neu.edu.cn

  • Status: Responded
  • IP(s): 210.30.206.171, 210.30.206.172
  • TTL: 86400 seconds
  • Recursive Queries: Does not allow recursive queries
  • TCP Connectivity: TCP connection failed (Response code: REFUSED)

• ns1.neu.edu.cn

  • Status: Responded
  • IP(s): 210.30.206.171, 210.30.206.172
  • TTL: 86400 seconds
  • Recursive Queries: Does not allow recursive queries
  • TCP Connectivity: TCP connection failed (Response code: REFUSED)

• ns2.neu.edu.cn

  • Status: Responded
  • IP(s): 210.30.206.172, 210.30.206.171
  • TTL: 86400 seconds
  • Recursive Queries: Does not allow recursive queries
  • TCP Connectivity: TCP connection failed (Response code: REFUSED)

ns.neu.edu.cn

• Serial: 2024082609
• Refresh: 28800
• Retry: 7200
• Expire: 1209600
• Minimum TTL: 86400

ns1.neu.edu.cn

• Serial: 2024082609
• Refresh: 28800
• Retry: 7200
• Expire: 1209600
• Minimum TTL: 86400

ns2.neu.edu.cn

• Serial: 2024082609
• Refresh: 28800
• Retry: 7200
• Expire: 1209600
• Minimum TTL: 86400

Serial: 2024082609 - OK

REFRESH: 28800 - OK

RETRY: 7200 - OK

EXPIRE: 1209600 - OK

MINIMUM TTL: 86400 - Note: Outside recommended range (1-3 hours)

ns.neu.edu.cn

• 10 gateway.neu.edu.cn ( 210.30.204.80 )
• 10 gateway1.neu.edu.cn ( 210.30.204.80 )

ns1.neu.edu.cn

• 10 gateway.neu.edu.cn ( 210.30.204.80 )
• 10 gateway1.neu.edu.cn ( 210.30.204.80 )

ns2.neu.edu.cn

• 10 gateway.neu.edu.cn ( 210.30.204.80 )
• 10 gateway1.neu.edu.cn ( 210.30.204.80 )

MX Record Consistency - OK

MX Record Count - OK

• 80.204.30.210.in-addr.arpa -> IP-210-30-204-80.neu.edu.cn
• 80.204.30.210.in-addr.arpa -> IP-210-30-204-80.neu.edu.cn

PTR Records - OK

• Signed: Yes
• Validation: Successful
• DNSKEY Records: 2
• DS Records in parent zone: 0
• DS at Parent: None

DNSSEC - OK

SPF Record Published: Passed

Multiple SPF Records: Passed

SPF Record 1:

• Record: v=spf1 redirect=_spf.neu.edu.cn
• SPF Syntax: Failed
• Deprecated Elements: Passed
• IP Addresses:
• Includes:
• DNS Lookups: 0
• 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:

• No DMARC record found