[Zope] hiding site content based upon a domain? (similar to htaccess)

Is there any way to restrict access to a section of a site (and all objects under it) to a particular domain, or to make a section/sub-objects available to only a particular domain? I'm basically trying to get some of the functionality of htaccess in a Zope setup. cheers tone. ------ Dr Tony McDonald, FMCC, Networked Learning Environments Project http://nle.ncl.ac.uk/ The Medical School, Newcastle University Tel: +44 191 222 5888 Fingerprint: 3450 876D FA41 B926 D3DD F8C3 F2D0 C3B9 8B38 18A2