4PSA Clean Server

4PSA Clean Server 4 features 4Grid, the next generation infrastructure technology for service providers. Not only does 4PSA Clean Server provide great technological advantages, it is also the most economical antivirus for Parallels Plesk Panel servers, by providing scans for an unlimited number of mailboxes at no yearly fees. Compatible with: all Plesk Panel versions for Linux/UNIX. 4PSA Clean Server 4 is also packed for Virtuozzo in EZ templates.

• Small Business, Single Plesk Server - Small companies that own a single server or VPS can install 4PSA Clean Server, so that both the scanning agent and the scanning engine are deployed on the same machine. It is ready to scale with the company's expansion!

• Hosting Providers, Many Plesk Servers - The hosting company will install the Clean Server scanning agents on all Plesk Panel servers and will connect them all to the scanning nodes. The company can deploy any number of scanning nodes it finds appropriate, based on the scanning volume.
  

4PSA Clean Server 4 implements distributed scanning, email delivering policies, and the most advanced antivirus control features:

• It provides the most efficient scanning even when the hosting server is used for the scanning process
• A distributed scanning design that can address any peak in email traffic because a virtually unlimited number of scanning nodes can be added. Regular hosting server services are not affected by scanning

• It renders obsolete centralized mail filtering applications that have many problems including the following:

• Difficulty setting up in an automated environment
• Introducing single point of failure
• Not scaling (when the number of emails increases over the applications' specifications, a new machine must be purchased)
• Employing prohibitive costs, often computed per mailbox

The connections between hosting servers and the scanning infrastructure can be setup in 4PSA Clean Server administration interface. When a scanning node is found to be down or overloaded, scanning requests are distributed to the working nodes.

4PSA Clean Server 4 takes a new approach to solve the issues related to email antivirus filtering by clustering the scanning processes.

Traditional Plesk Panel Email Antivirus		4PSA Clean Server 4 Next Generation Plesk Antivirus
	Email scanning is performed on the same server.		The first antivirus for Plesk to introduce safe, high performance distributed email scanning
	On high email load, the server becomes overloaded by the scanning process and important services like http or database lack resources.		Designed to scale seamlessly with the infrastructure's growth; the only system available that scales from one hosting server to thousands
	Some engines let unchecked emails pass at peak times. Other engines try to process the emails and eventually the server is exposed to a denial of service attack.		There is no way to overload the server with scanning processes, and emails cannot pass unless they are scanned.
	Each hosting server uses its own scanning engine, which is installed on the same server. Resources are inefficiently spent.		The fastest and most reliable scanning process that does not affect the hosting services installed on the server
	Antivirus updates must be deployed on each hosting server.		Antivirus updates must be deployed on scanning nodes only.
	High memory footprint and CPU consumption, difficult to install on virtual machines		The lowest memory footprint and the most efficient engine for virtual machines
	No statistics or usage reports for administrator and end-users		The highest level of control for the end-users; it delivers detailed reports and alerts.
	No file system scanning for potential threats, no reports sent to administrator.		Clean Server supplements email scanning with file system scanning and it sends reports to administrator about the threats present on the server.