What is the purpose of Split DNS in FortiSASE?

The purpose of Split DNS in FortiSASE is to direct specific DNS queries to internal DNS servers. This mechanism is particularly useful in hybrid environments where both internal and external resources are accessed. By using Split DNS, organizations can configure their DNS settings such that queries for internal domain names are resolved by local DNS servers, while requests for external domain names are routed to public DNS servers. This not only improves the efficiency of resolving DNS queries for internal resources but also enhances security by segregating internal and external DNS traffic. Thus, users can efficiently access both internal applications and external resources without unnecessary latency or exposure of internal DNS information to the outside network.