Before the server can process a request, it must accept the request via a listen socket, then direct the request to the correct virtual server.
A virtual server is then selected as follows:
If the listen socket is configured to only a default virtual server, that virtual server is selected.
If the listen socket has more than one virtual server configured to it, the request Host header is matched to the URL host of a virtual server. If no Host header is present or no URL host matches, the default virtual server for the connection group is selected.
If a virtual server is configured to an SSL listen socket, its URL host is checked against the subject pattern of the certificate at server startup, and a warning is generated and written to the error log if they don’t match.
After the virtual server is determined, the server executes the obj.conf file for the virtual server class to which the virtual server belongs. For details about how the server decides which directives to execute in obj.conf, see the Sun Java System Web Server 6.1 SP11 NSAPI Programmer’s Guide.