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Asynchronous domain name server resolution with automated classification of domain type

  • US 10,015,180 B1
  • Filed: 09/23/2016
  • Issued: 07/03/2018
  • Est. Priority Date: 09/23/2016
  • Status: Active Grant
First Claim
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1. A method, comprising:

  • obtaining a domain table identifying a plurality of known domains;

    obtaining a domain-to-IP address table identifying a latest domain-to-IP address resolution and corresponding latest resolution time for a plurality of domains;

    asynchronously resolving at least two of said plurality of known domains from said domain table in parallel to obtain a current domain-to-IP address resolution for said at least two known domains, wherein a schedule of said asynchronous resolution is based on a Time-To-Live attribute of said latest domain-to-IP address resolution of said at least two of said plurality of known domains;

    determining, using at least one processing device, if said current domain-to-IP address resolution from said asynchronous resolution matches said latest domain-to-IP address for each of said at least two known domains; and

    updating, using said at least one processing device, said domain-to-IP address table with said current domain-to-IP address resolution from said asynchronous resolution and said corresponding resolution time for a given one of said at least two known domains if said current domain-to-IP address resolution does not match said latest domain-to-IP address for said given known domain.

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