Outlook Web Access

["steve" <securityfocus () delahunty com>]

We are still running Exchange 5.5 and until we start our Exchange 2003
migration we want to improve the way we are running Outlook Web Access (OWA)
in terms of security.  We use SSL.  We prohibit traffic to the box other
than port 80 and 443.  Other than the obvious recommendations of using the
recommended OWA install and hardening the OS where OWA is running does the
list have any other recommendations on protecting the OWA box?  For
instance, can OWA be configured to run on Linux/Apache instead of Windows
2000/IIS5?

Thanks



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