However, I’ve been whacking my brain on how to properly backup our web server and FTP server, as there’s been recent additions to our web servers that now make daily backups more prudent.  They both have external, public IP addresses.  The obvious case is to use port forwarding.  Has anyone here in the user group use this method to backup your external hosts?  If so, what ports needs to be forwarded, and what security measures to you take?  Or is it too much trouble and I’m better off getting a dedicated tape drive for those external machines?