Nginx
VPS Control Panels
The HestiaCP control panel is distributed under the GPL v3 license and is based on the VestaCP project, which has not been supported for a long time.
CloudPanel is a free software for server configuration and management with an obsessive focus on simplicity. Run static websites, PHP, Node.
Systems & Infrastructure
Nginx (or Engine X) is a free and powerful HTTP and proxy server open source and architecture based on event processing. It is written in the C programming