Which command is best for showing specific details about OSPF configurations?

The command that provides specific details about OSPF configurations is designed to show information related to the OSPF routing protocol and its advertisements. Using the command to retrieve details from the OSPF database directly focuses on the Router Link State Advertisements (LSAs), which contain vital information about the routing topology known to that router. This is crucial for understanding how OSPF is configured and how it interacts with the network.

By executing this command, you can gain insights into the OSPF router's local view of the network. It delivers detailed data concerning the network topology, including which routers are present, their link costs, and the state of the links. This level of detail is essential for troubleshooting and optimizing OSPF configurations.

Other commands listed serve different purposes. For instance, managing FortiGuard services or handling web filtering does not relate to the OSPF routing configuration, thus making those commands unsuitable for someone seeking OSPF-specific information. By focusing on commands directly related to OSPF, it becomes clear why the command that reports on Router LSAs is the best choice for retrieving specific OSPF configuration details.