The name responds with a CNAME record for that points to DNS Load Balancer.The DNS resolver requests the IP address from the authoritative name servers for (in this case, your Primary DNS server).A client requests DNS resolution for the hostname, via their local DNS resolver.Depending on the health of your IP endpoints, DNS Load Balancer will direct traffic depending on proximity rules and the health of your application endpoints. Continuing with the previous example, the LBR you create would be How DNS Resolution works with DNS Load BalancerĭNS Load Balancer monitors application availability through widely deployed points of presence to determine the health of your load-balanced applications. On the DNS Load Balancer, create a Load Balancer Record (LBR) using the CNAME you just created.On the primary DNS server, delegate authority for the subdomain to DNS Load Balancer by modifying the parent zone to include nameserver (NS) records for the new zone and address (A) records for the new nameservers referenced in the NS records.įor example, to delegate authority for the subdomain to the DNS Load Balancer name servers and, the parent zone should contain the following DNS Records: Delegate authority for the entire subdomain to DNS Load Balancer.For example, the subdomain name gslb or dnslb is commonly used. In most cases, it makes sense to create a new subdomain that is used only for this purpose. Create a new DNS subdomain within your parent zone for which the F5 DNS Load Balancer Cloud Service is authoritative. Primary DNS subdomain delegationĬomplete the following steps to configure your primary DNS server to delegate a subdomain to the DNS Load Balancer Cloud Service. This article outlines how to provide DNS Load Balancing for the hostname,, with the DNS Load Balancer. To use the F5 DNS Load Balancer Cloud Service to provide global DNS traffic management, you need to delegate authority for specific hostnames from your primary DNS server to DNS Load Balancer.
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