A zone transfer request, also referred to as an AXFR query, can expose internal hostnames, mail records, and other entries when the server is configured improperly. Other methods, such as parsing website content or reviewing archived snapshots, reveal some information but do not match the volume of records that zone transfer leaks. Examining job boards reveals general infrastructure or technology details, but this method is less direct than a misconfigured transfer attempt.
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What is a zone transfer in the context of DNS?
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How can a misconfigured zone transfer be identified during an investigation?
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Why are zone transfers considered a security risk if improperly configured?