Per domain/host options for sshd?

Hi, is there any way to specify certain options for sshd only for some domains or hosts just like you can do it for the openssh client (Host section)? E.g., I would like to restrict the usage of authorized_keys files to certain "trusted" domains and disallow it from other domains. Does anyone know a way to do this? Thanks! cu, Frank -- Dipl.-Inform. Frank Steiner Web: http://www.bio.ifi.lmu.de/~steiner/ Lehrstuhl f. Bioinformatik Mail: http://www.bio.ifi.lmu.de/~steiner/m/ LMU, Amalienstr. 17 Phone: +49 89 2180-4049 80333 Muenchen, Germany Fax: -4054