How can you hide DLB hostnames?

How can you hide DLB hostnames?

• A. A DLB DNS entries are A records and are maintained by Mulesoft
• B. Customers can define their own domain names as CNAMEs in their own DNS server
• C. DLB hostnames cannot be hidden
• D. Use a firewall to block DLB hostnames

Answer: (B)

You hide DLB hostnames by configuring your own domain names as CNAME records in your DNS. This creates an alias so clients access your branded domain, while the DNS resolution ultimately reaches the DLB behind the scenes. The actual DLB hostname remains hidden from end users because they interact with your domain rather than the DLB’s hostname. Using an A record would directly reveal the DLB endpoint by mapping to its IP, and blocking with a firewall doesn’t provide a usable alias for access. Saying DLB hostnames can’t be hidden isn’t correct, since a DNS CNAME is a standard way to present a different hostname to clients.

You hide DLB hostnames by configuring your own domain names as CNAME records in your DNS. This creates an alias so clients access your branded domain, while the DNS resolution ultimately reaches the DLB behind the scenes. The actual DLB hostname remains hidden from end users because they interact with your domain rather than the DLB’s hostname. Using an A record would directly reveal the DLB endpoint by mapping to its IP, and blocking with a firewall doesn’t provide a usable alias for access. Saying DLB hostnames can’t be hidden isn’t correct, since a DNS CNAME is a standard way to present a different hostname to clients.