US 12,267,294 B1
Nonexistant domain forwarding in authoritative zones
Jason Paul Larrew, Boerne, TX (US)
Assigned to United Services Automobile Association (USAA), San Antonio, TX (US)
Filed by United Services Automobile Association (USAA), San Antonio, TX (US)
Filed on Feb. 8, 2024, as Appl. No. 18/436,235.
Application 18/436,235 is a continuation of application No. 17/551,036, filed on Dec. 14, 2021, granted, now 11,902,242.
Claims priority of provisional application 63/128,446, filed on Dec. 21, 2020.
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 61/4511 (2022.01); H04L 9/40 (2022.01); H04L 61/5007 (2022.01)
CPC H04L 61/4511 (2022.05) [H04L 61/5007 (2022.05); H04L 63/0876 (2013.01); H04L 63/102 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A tangible, non-transitory, computer-readable medium, comprising computer-readable instructions that, when executed by one or more processors, cause the one or more processors to: receive, from a client device, at an authoritative domain name system (DNS) zone, a request to resolve a domain name to an Internet Protocol (IP) address; identify that the request cannot be satisfied via the authoritative DNS zone; and based upon identifying that the request cannot be satisfied via the authoritative DNS zone: determine whether a forwarder service is enabled, by identifying whether a forwarder indication is present in an authoritative DNS zone configuration file specific to the authoritative DNS zone; in response to determining that the forwarder service is enabled for the authoritative DNS zone: parse from the forwarder indication a forwarder service IP address of the forwarder service; and forward the request to the forwarder service IP address of the forwarder service; and in response to determining that the forwarder service is not enabled, refrain from forwarding the request to the forwarder service.