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System and method of client-side DNS prioritization using time zone offset to select from configured list of DNS servers

專利號(hào)
US11997065B1
公開(kāi)日期
2024-05-28
申請(qǐng)人
CHARTER COMMUNICATIONS OPERATING, LLC(US MO St. Louis)
發(fā)明人
Steven R. Monti; Jordan A. Dechaine
IPC分類
H04L61/4511; H04L67/52; H04L67/561
技術(shù)領(lǐng)域
dns,server,client,may,ue,zone,or,network,in,servers
地域: MO MO St. Louis

摘要

Systems and network devices configured for client-side domain name system (DNS) prioritization using time zone offset to select from configured list of DNS servers. A UE device (DNS client) may determine its current time zone, and query a locally stored domain name system (DNS) server list to select a regional DNS server based on its current time zone. The UE device may send DNS requests for resource addresses to the selected regional DNS server. In response, the UE device may receive DNS response messages that priorities resource addresses based on their geographic proximity to the current time zone of the UE device.

說(shuō)明書

As an example, using other solutions, a DNS client (a UE device) may still connect to the same DNS server even in instances in which the DNS client is moved outside of the managed network and from one geographic location to another, such as for example in instances in which a person travels from New York to California. The DNS server may translate domain names into IP addresses for network resources located on the east coast, even though the UE device is now physically located on the west coast. This may result in increased latency, congestion, or otherwise have a negative impact on the performance of the DNS client (e.g., because it is still communicating with network resources as if it were in its previous geographic location). For example, a DNS client in California may receive a response from a local web server in 10 milliseconds, but the same response from a distant web server in New York may take 20-30 milliseconds or more.

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