hi all. I'm an old windows admin who has become aware of linux. Therefore, I am about to make a shared web and mail hosting. I have followed this guide, and has also been mostly to work, except the FTP server. http://www.howtoforge.com/perfect-server-centos-5.6-x86_64-ispconfig-2-p6 I have used Cent OS 5.7, could not finde 5.6 on DVD. None of the users I create can log on nor root. What should I look for?