The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 14, 2025
Filed:
Aug. 26, 2022
Applicant:
Level 3 Communications, Llc, Broomfield, CO (US);
Inventors:
John R.B. Woodworth, Amissville, VA (US);
Dean Ballew, Sterling, VA (US);
Dan Luther, Claremore, OK (US);
Mark Dehus, Thornton, CO (US);
Assignee:
Level 3 Communications, LLC, Denver, CO (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 9/40 (2022.01); G06F 16/953 (2019.01); H04L 61/4511 (2022.01); H04L 61/58 (2022.01);
U.S. Cl.
CPC ...
H04L 63/1425 (2013.01); G06F 16/953 (2019.01); H04L 61/4511 (2022.05); H04L 61/58 (2022.05);
Abstract
The present application describes systems and methods for populating a DNS cache of a recursive DNS server using information gathered by a threat intelligence system. The threat intelligence system may collect some or all DNS responses from one or more recursive DNS servers as the one or more DNS servers process various received requests. Since the threat intelligence engine has access to this DNS data, the DNS data may be used to seed a DNS cache of a recursive DNS server.