Problem

-- In API Manager, virtual host on which the frontend API is exposed can be set either using the Default Virtual host parameter in API Manager settings, or when publishing the frontend API.

-- Is the behaviour different between the two ways of defining a virtual host?

Resolution

- There's a difference, especially if there are several network interface on the system.

- If the virtual host is defined using the Default Virtual host in API Manager settings, the frontend API will be available from all the network interface on the system.

- If the virtual host is defined when publishing the frontend API, the frontend API will be available only from the interface defined by the virtual host.