» What is a VPS?
» What is Virtuozzo?
» What is guaranteed and burst memory (RAM)?
» What are the advantages of a VPS?
» What is the difference between a VPS and shared hosting?
» How do I manage my VPS?
A VPS is a Virtual Private Server. It exists on a physical machine that's been sliced into smaller virtual machines. You have complete control over the functions of the server - and can use it to host websites or run any program. It's ideal for e-commerce sites, business sites or individuals, such as forex traders, who need to run their own software on powerful servers. You have full root/administrator access to the server.
Virtuozzo is the VPS technology created by Parallels. It allows GalaxyVisions and other providers to create isolated VPS servers on the single physical server.
Guaranteed memory is the amount of memory allocated to your VPS. You can use it at any time. Burst memory allows your VPS to use more than your guaranteed memory as long as the memory is available.
A VPS gives you the features and functions of a managed dedicated server - without the price. You have total control of your server, including full root access to install your own applications. You can't do that in a shared hosting environment. A VPS, because it's isolated, gives you more freedom to run scripts. For instance, you can run a script to send to a mailing list and you don't have to worry about other users' actions causing the mail server IP to be blacklisted. A VPS also allows you to create reseller accounts and more.
A VPS is an isolated, virtualized environment where you have dedicated resources. A shared hosting environment, on the other hand, the server is shared among all accounts on that particular server. With shared hosting, you are also restricted to the features that are enabled by your provider. With a VPS, you are in full control of the server.
VPS hosting accounts come with three control panels: Virtuozzo Power Panel (VZPP), WebHost Manager (WHM) and cPanel.
VZPP is the VPS server administration control panel. It allows you to start/stop your VPS, monitor your VPS resource utilization, restart a service, view disk space, backup/restore your VPS, and reinstall your VPS.
WHM is the hosting-administration control panel. It allows you to create and manage hosting accounts in your VPS. It lets you create and manage hosting accounts as well as limit accounts' disk space, bandwidth and email accounts. You can also email all accounts, change account passwords and check server status.
CPanel allows you to manage individual hosting accounts. You can create/remove email accounts, view website stats via AWstats, manage domains/subdomains/parked domains, monitor bandwidth usage and create MySQL databases. You also can add or remove FTP accounts and use advanced tools such as cron jobs, hotlink protection and pre-installed scripts such as Fantastico.