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DNS Analysis Using <strong>DNSViz</strong><br />
(dnsviz graph command line)<br />
• Resp<strong>on</strong>ses analyzed (offline)<br />
• Resp<strong>on</strong>siveness<br />
• Query timeouts<br />
• Network errors<br />
• EDNS/fragmentati<strong>on</strong><br />
capabilities<br />
• C<strong>on</strong>sistency<br />
• Across servers<br />
• Between DNSKEY/RRSIG<br />
• Between DNSKEY/DS<br />
• Correctness<br />
• RRSIG<br />
• Expirati<strong>on</strong>/incepti<strong>on</strong> dates<br />
• Cryptographic signature<br />
• DS<br />
• Cryptographic hash<br />
• Negative resp<strong>on</strong>ses<br />
• NSEC proof correctness<br />
• SOA record correctness<br />
output.js<strong>on</strong><br />
Serialized <strong>on</strong>line<br />
analysis (JSON)<br />
$ dnsviz graph Analysis graph<br />
(jpg, png, html)<br />
Verisign Public<br />
32
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