Kumquat

Small scale virtual hosting portal.

Features

Web VHost management (including support for SSL Certificates)
MySQL Database management
FTP Users
No complicated reseller/permission system (single user model)
Relatively agnostic to server software (built for SmartOS Zones with apache from pkgsrc, but support for nginx would be just one template change and a setting away)
(optional) per VHost ZFS filesystem allows fine grained snapshots and backups