{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-10469532","patent":{"patent_number":"US-10469532","title":"Preventing DNS cache poisoning","assignee":null,"inventors":[],"filing_date":"2017-01-23T00:00:00.000Z","publication_date":"2019-11-05T00:00:00.000Z","cpc_codes":["H04L","H04L","H04L","H04L","H04L","H04W","H04L"],"num_claims":18,"abstract":"The present disclosure provides a method and a device for preventing DNS cache poisoning. According to an example of the method, a preventing equipment may forward a first DNS query request packet sent by a DNS server to a first authoritative DNS server. The preventing equipment may construct a second DNS query request packet including the target domain name and send the second DNS query request packet to a second authoritative DNS server when a first DNS reply packet received for the first DNS query request packet indicates a DNS cache poisoning attack occurs. When a second DNS reply packet received for the second DNS query request packet indicates no DNS cache poisoning attack occurs, the preventing equipment may generate a final DNS reply packet according to the second DNS reply packet and feed back the final DNS reply packet to the DNS server."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Preventing DNS cache poisoning","description":"The present disclosure provides a method and a device for preventing DNS cache poisoning. According to an example of the method, a preventing equipment may forward a first DNS query request packet sen","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-10469532","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-10469532","citation_suggestion":"Patentable. \"Preventing DNS cache poisoning\" (US-10469532). https://patentable.app/patents/US-10469532","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-10469532","json":"https://patentable.app/api/llm-context/US-10469532","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T11:10:16.087Z"}