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What Is SLB?
Server load balancing (SLB) is used to distribute user requests to multiple servers for processing, improving the concurrent service processing capability and the scalability and reliability of the entire service system. Server load balancing can be applied in three typical scenarios based on the service type. The firewall also needs to know the health status of real servers through service health check and schedule services based on the health status. This document describes how to configure security policies in each SLB application scenario.