Create an VEx with your favorite distro. Give it an internal IP-address in one of the ranges 10.0.0.0/8, 172.16.0.0/12 or 192.168.0.0/16. Then strip away all unessary init.d scripts so only the bare minimum is started. That means as a minimum syslogd and ssh so the account holder can upload his/her files through SCP/SFTP in his/her own minimal server. For this to work you need [[http://wiki.openvz.org/Using_NAT_for_VE_with_private_IPs destination NAT on VE0 ]] from high numbered ports to port 22 on the given private IP-address: