On Fri, May 1, 2009 at 11:19 AM, Jason Todd Slack-Moehrle <mailinglists at mailnewsrss.com> wrote: > What tips does everyone have on hardening a CenOS Server that is > running web, e-mail, ssh, ftp, mysql, coldfusion and will be > processing payments from www? I was out of town and I just read your post. I would strongly suggest that you download the free manual about hardening RHEL 5, in .pdf form, from nsa.gov As I recall, they do *NOT* recommend running more than one service on a server, if possible. Among many other recommendations. Search for "Guide to the Secure Configuration of Red Hat Enterprise Linux 5", Revision 2, December 20, 2007. HTH