The ResponseHostPort element is used as a subelement of the Globals element to specify the host/port that Express Server will report in its XML responses. This can be useful when the Express Server is operating behind a firewall or a reverse proxy. For example, the following would return :
<Globals>
...
<ResponseHostPort>lizardtech.com:80</ResponseHostPort>
...
</Globals>
would return the following response to a browse? request:
<ImageServer host="lizardtech.com:80" path="lizardtech/iserv" ...>