Configuring AutoScale

6.In the Load Balancing node of the diagram, click View All.

In a Basic zone, you can also create a load balancing rule without acquiring or selecting an IP address. CloudPlatform internally assigns an IP when you create the load balancing rule, which is listed in the IP Addresses page when the rule is created. To do that, select the name of the network, then click the Add Load Balancer tab. Continue with 7.

7.Fill in the following:

•Name: A name for the load balancer rule.

•Public Port: The port receiving incoming traffic to be balanced.

•Private Port: The port that the VMs will use to receive the traffic.

•Algorithm: Choose the load balancing algorithm you want CloudPlatform to use. CloudPlatform supports a variety of well-known algorithms. If you are not familiar with these choices, you will find plenty of information about them on the Internet.

•Stickiness: (Optional) Click Configure and choose the algorithm for the stickiness policy. See Section 16.8.3, “Sticky Session Policies for Load Balancer Rules”.

•AutoScale: Click Configure and complete the AutoScale configuration as explained in Section 16.8.2, “Configuring AutoScale”.

•Health Check: (Optional; NetScaler load balancers only) Click Configure and fill in the characteristics of the health check policy. See Section 16.8.4, “Health Checks for Load Balancer Rules”.

•Ping path (Optional): Sequence of destinations to which to send health check queries.

Default: / (all).

•Response time (Optional): How long to wait for a response from the health check (2 - 60

seconds). Default: 5 seconds.

•Interval time (Optional): Amount of time between health checks (1 second - 5 minutes). Default value is set in the global configuration parameter lbrule_health check_time_interval.

•Healthy threshold (Optional): Number of consecutive health check successes that are

required before declaring an instance healthy. Default: 2.

•Unhealthy threshold (Optional): Number of consecutive health check failures that are

required before declaring an instance unhealthy. Default: 10.

8.Click Add VMs, then select two or more VMs that will divide the load of incoming traffic, and click Apply.

The new load balancer rule appears in the list.

9.You can repeat these steps to add more load balancer rules for this IP address.

16.8.2. Configuring AutoScale

AutoScaling allows you to scale your back-end services or application VMs up or down seamlessly and automatically according to the conditions you define. With AutoScaling enabled, you can ensure that the number of VMs you are using seamlessly scale up when demand increases, and automatically decreases when demand subsides. Thus it helps you save compute costs by terminating underused

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Citrix Systems 4.2 manual Configuring AutoScale
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4.2 specifications

Citrix Systems, a leading provider of virtualization solutions and cloud computing technologies, released version 4.2 of its popular software, Citrix XenApp, which was previously known as Presentation Server. This version marked a significant evolution in providing users with remote access to applications and desktops, emphasizing simplicity, performance, and security.

One of the standout features of Citrix XenApp 4.2 is its improved application streaming capabilities. This technology allows applications to be delivered to users in real-time, reducing the need for extensive local installations and enhancing the user experience. With application streaming, administrators can efficiently manage applications on a central server while ensuring that users have immediate access to the necessary tools.

Another highlight of this version is the enhanced security measures put in place to protect sensitive data. Citrix XenApp 4.2 includes support for SSL encryption, providing a secure communication channel for data transmitted between the server and clients. This is particularly crucial for businesses that need to comply with strict data protection regulations. Additionally, the integration of endpoint security features ensures that unauthorized access to applications is minimized.

Performance enhancements are also a critical focus in this release. Citrix optimized the delivery of applications over various network conditions, ensuring that users experience minimal latency regardless of their location. This was achieved through the incorporation of SmartAccess and SmartControl technologies, which allow administrators to set policies based on user roles, device types, and network conditions. This level of granularity enables organization-wide security without compromising on usability.

The user experience was further improved with a revamped interface, making it easier for end-users to access their applications and data. Simplified menus, clear navigation paths, and the ability to customize user settings contributed to a more efficient workflow, allowing users to focus on their tasks rather than struggling with the software.

Finally, Citrix XenApp 4.2 was designed to be highly scalable. Organizations of all sizes could deploy this solution to deliver applications efficiently, adapting to their specific needs as their user base grows or changes. This flexibility is crucial for businesses looking to future-proof their IT investments while maintaining optimal performance.

In summary, Citrix XenApp 4.2 stands out with its enhanced application streaming, robust security features, improved performance under varying conditions, user-friendly interface, and scalability, making it an ideal choice for organizations seeking to leverage virtualization for remote access to applications and desktops.
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