How to control ssh login?

Hello all: I am running suse 10.0. ssh is enabled so that users can login the computer through ssh. But there are a few users who has weak passwords. How can I block these users from being able to login the computer through the network? Login at the console should not be blocked. Can sshd be controlled through inetd/xinetd? Thanks, IG _______________________________________________________________________ 3 könyv = 15+5% kedvezmény! http://www.bookline.hu/control/news?newsid=351&affiliate=fre3kokar2230