DNS Long-Lived Queries is a mechanism that allows DNS clients to learn about changes to DNS data without polling. DNS LLQ is used by Apple Inc.'s Back To My Mac (BTMM) service to track changes in the IP addresses of BTMM servers and clients.
DNS Long-Lived Queries is a mechanism that allows DNS clients to learn about changes to DNS data without polling. DNS LLQ is used by Apple Inc.'s Back To My Mac (BTMM) service to track changes in the IP addresses of BTMM servers and clients.
Source: Wikipedia "DNS Long-Lived Queries" · CC BY-SA 4.0
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