NetScaler - Key Features & Benefits

Web Application Delivery Featuring Global Traffic Management and Others
The Citrix NetScaler family of application delivery solutions offers a rich set of features for web application delivery with the highest levels of availability, security and performance:

Citrix NetScaler Features

• Intelligent Server Load Balancing and Content Switching — Citrix NetScaler provides the industry’s most comprehensive Layer 4-7 traffic management. Deployed in front of application servers, NetScaler delivers fine-grained direction of client requests to ensure optimal distribution of traffic. In addition to Layer 4 information (protocol and port number), traffic management policies for TCP applications can be based upon any application-layer content. Administrators can granularly segment application traffic based upon information contained within an HTTP or TCP request’s body, as well as L4-7 header information such as URL, application data type or cookie. Numerous load-balancing algorithms and extensive server health checks provide greater application availability by ensuring client requests are directed only to correctly behaving servers.
• Accelerated Application — Citrix NetScaler delivers multiple TCP optimizations to improve the performance of the network and server infrastructure. For example, TCP connection multiplexing reduces thousands of short-lived client connections into a much smaller number of long-lived, persistent server connections. This and other TCP optimizations reduce server load, improving server performance and accelerating application response. NetScaler TCP optimizations are transparent to clients and servers, accelerating the delivery of any enterprise or Web-based application while requiring little or no configuration.
• Citrix AppCompress — Citrix AppCompress improves end-user performance, reduces bandwidth consumption and improves web application perfomance by compressing HTML/Text content before transmission to clients. AppCompress supports both encrypted and unencrypted data.
  More information on Citrix AppCompress.
• SSL Acceleration — NetScaler integrates hardware-based SSL acceleration to offload the compute-intensive processes of SSL connection setup and bulk encryption from Web servers. SSL acceleration reduces CPU utilization on servers, freeing server resources for other tasks. SSL acceleration is automatically enhanced by TCP optimizations and is fully integrated with the AppCompress option.
• Citrix AppCache — Citrix AppCache™ stores frequently requested Web content in memory and instantly serves static and dynamically-generated data to application users, speeding response time.  AppCache reduces the number of server resources needed for page regenerations, allowing existing servers to support increased loads also known as server load balancing.
  More information on Citrix AppCache.
• NetScaler Application Firewall Module — Citrix Application Firewall offers web application security from the growing number of application-layer attacks, including buffer overflow exploits, SQL injection attempts, cross-site scripting attacks and more. In addition to proven attack defenses, the NetScaler Application Firewall module provides identity theft protection by securing confidential corporate information and sensitive customer data.
http://www.citrix.com/English/ps2/products/feature.asp?contentID=21766

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