chroot in SSH

Does anyone know how to do a chroot for users logging in via SSH ? You know, like the chroot that can automatically be done when ftp'ing onto the server. I don't want the users to be able to escape from their homedirs to higher levels in the directory-tree. I know that this can be done somehow, but couldn't find any hint on the net nor in any howto. Thanks in advance. Stephan --- Stephan M. Ott // OKDesign oHG Internet-Providing / Netzwerkmanagement smo@okdesign.de ..... http://www.okdesign.de tel. 09565-61397 ..... fax. 09565-61399 handy. 0171-8351130 oder 0171-7858064