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DNS Analysis Using <strong>DNSViz</strong><br />
(dnsviz probe command line)<br />
• Queries issued<br />
.<br />
• Referral queries – to learn delegati<strong>on</strong> NS records from parent<br />
• NS queries – to learn authoritative NS records<br />
• DNSKEY/DS queries – for building a <strong>DNSSEC</strong> chain<br />
• A/AAAA/TXT/MX/SOA queries<br />
• Diagnostic queries (special handling of errors, etc.)<br />
• All servers queried<br />
com<br />
• IPv4/IPv6<br />
• UDP/TCP<br />
example.com<br />
r<br />
e<br />
f<br />
e<br />
r<br />
r<br />
a<br />
l<br />
s<br />
output.js<strong>on</strong><br />
Online analysis<br />
$ dnsviz probe example.com<br />
Serialized <strong>on</strong>line<br />
analysis (JSON)<br />
Verisign Public<br />
30
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