setting up a suse server

Hi All, how do you setup a linux box that stores all the users, groups and home folders for clients on the network? How do you get your clients to authenticate with the linux server where the users username/passwd is stored? how would you set it up in a pure linux environment? And how would you set it up in a mixed environment for linux and windows? Thanks Regards ______________________________________________________________ http://www.webmail.co.za the South African FREE email service