To resolve internal hostnames using internal DNS servers for remotely connected endpoints, the following two components must be configured on FortiSASE:

Split DNS Rules:

Split DNS allows the configuration of specific DNS queries to be directed to internal DNS servers instead of public DNS servers.

This ensures that internal hostnames are resolved using the organization's internal DNS infrastructure, maintaining privacy and accuracy for internal network resources.

Split Tunneling Destinations:

Split tunneling allows specific traffic (such as DNS queries for internal domains) to be routed through the VPN tunnel while other traffic is sent directly to the internet.

By configuring split tunneling destinations, you can ensure that DNS queries for internal hostnames are directed through the VPN to the internal DNS servers.

When accessing the FortiSASE portal for the first time, an administrator must select data center locations for the following FortiSASE components:

Endpoint Management:

The data center location for endpoint management ensures that endpoint data and policies are managed and stored within the chosen geographical region.

Points of Presence (PoPs):

Points of Presence (PoPs) are the locations where FortiSASE services are delivered to users. Selecting PoP locations ensures optimal performance and connectivity for users based on their geographical distribution.

Logging:

The data center location for logging determines where log data is stored and managed. This is crucial for compliance and regulatory requirements, as well as for efficient log analysis and reporting.

There are two deployment methods used to connect a FortiExtender as a FortiSASE LAN extension:

Connect FortiExtender to FortiSASE using FortiZTP:

FortiZero Touch Provisioning (FortiZTP) simplifies the deployment process by allowing FortiExtender to automatically connect and configure itself with FortiSASE.

This method requires minimal manual configuration, making it efficient for large-scale deployments.

Enter the FortiSASE domain name in the FortiExtender GUI as a static discovery server:

Manually configuring the FortiSASE domain name in the FortiExtender GUI allows the extender to discover and connect to the FortiSASE infrastructure.

This static discovery method ensures that FortiExtender can establish a connection with FortiSASE using the provided domain name.