vps

From an administrator’s point of view, a VPS (Virtual Private Server) is essentially a dedicated server. While a VPS runs on shared hardware, you install the OS and control the resources of your slice just as if you had a dedicated server box. You may be constrained in your choice of OSes, and need to set certain VPS parameters (e.g. dealing with hardware resources such as the internal clock, etc.), but you control the larger picture, such as firewalls and which version of Apache, PHP, MySQL, etc. you run. And your VPS will typically have an assigned, unique IP address, just like a dedicated server. To Aegir, a VPS looks just like a dedicated server.