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What is an Application Delivery Controller?
ADC represents the Application delivery controller. It handles and directs the data flow among client connections and Web or enterprise software and can be used in the design of hardware devices or application programs.
ADCs are generally related to application delivery networks (AND) where their goal is to implement simple tasks like what Web sites generally do to lessen the load from the Web servers.
ADCs can also be discovered between a firewall and various software servers in a Web farm within a demilitarized zone (DMZ).
The application delivery controller finds the crucial position of the cloud computing network. In addition to the strong processing capability required by large-throughput big data, it can also provide the current cloud computing technology like NFV and SDN.
It can implement the SSL offloading and web software acceleration, the application delivery controller can be equipped with an additional hardware acceleration engine to manage the data encryption/decryption and compression/decompression operations that are very estimating exhaustive.
It can provide application security, the application delivery controller is used to provide not only strong packet processing capability but also excellent feature matching capabilities, which are the foundation to execute web firewalls and guard against several malicious attacks.
The High-Galaxy ANS is supplied with skilled application acceleration and security, and supports a comprehensive application delivery solution for the customer, such as global load balancing, multi-link load balancing, and server load balancing.
An ADC uses approaches like application classification, compression, and reverse caching to the enhanced acceleration of business applications. ADCs decide security requirements as the individual point of control for several servers.
ADCs manage distributed denial-of-service (DDoS) attacks and secure web applications against common threats using web application firewalls (WAFs). It can also support SSL offloading and application autoscaling.
The following methods are generally used by ADCs to improve application performance −
Load balancingDistributes incoming requests across a team of servers. Algorithms treated server capacity, type of content requested, and user areas to execute implementation.
CachingStores content narrowly on the ADC, which quickness delivery and decreases server load.
CompressionThere are huge files including images, music, and video are compressed to quick delivery and rise network capacity.
Offloading SSL processingThe ADC restores backend servers as the SSL endpoint for user connections. By achieving the decryption and encryption operation for servers, the ADC speeds content delivery by loosening up servers for other functions.
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