How do I change the servername that XE HTTP is listening for?

I have XE installed on a Linux box, which naturally has 'linux' as its hostname and mydomain.int as the internal domain name. I'd like HTMLDB to respond to a different name e.g. htmldb.mydomain.com . I can set up DNS, etc. to have networking work correctly to this new name, but whenever HTMLDB responds it sends back a 'linux' based HTML reference.

On a standard Apache/ORacle configuration I'd be able to alter the 'servername' parameter - how can I achieve this with XE and its internal HTTP listener?

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Andy