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Use case 13: Configure Citrix Virtual Apps for load balancing

December 8, 2022
Contributed by:
C S

For efficient delivery of applications, you can integrate the Citrix ADC appliance with Citrix Virtual Apps and use the Citrix ADC load balancing feature to distribute the load across the Citrix Virtual Apps server farms. The following figure is a topology diagram of such a setup.

Load Balancing of Citrix Virtual Apps setup

The Web Interface servers provide secure access to Citrix Virtual Apps application resources through the user’s Web browser. The Web Interface client presents to the users all the resources, such as applications, content, and desktops that are made available in the Citrix Virtual Apps server farms. Users can access the published resources through a standard Web browser or through the Citrix online plug-in.

The Web browser on the user’s device sends information to the Web server, which communicates with the servers on the server farm to provide the user with access to the resources.

The Web Interface and the XML Broker are complementary services. The Web Interface provides users with access to applications, and the XML Broker evaluates the user’s permissions to determine which applications appear in the Web Interface.

XML服务安装在所有的服务器the server farm. The XML service specified in the Web Interface functions as an XML broker. Based on the user credentials passed by the Web Interface server, the XML Broker server sends a list of applications accessible to the user.

In large enterprises where multiple Web Interface servers and XML Broker servers are deployed, Citrix recommends load balancing these servers by using the Citrix ADC appliance. Configure one virtual server to load balance the Web Interface servers and another for the XML Broker servers. The load balancing method and other features can be configured on the virtual server as required.

Note

Although you can use the HTTP protocol, Citrix recommends that you use SSL for communication between the client and the Citrix ADC. You can use the HTTP protocol for communication between the Citrix ADC and the WI servers even though you use the SSL protocol for communication with the client.

To configure load balancing for Citrix Virtual Apps by using the GUI

  1. Create a service.
    1. Navigate toConfiguration>Traffic Management>Load Balancing>Servicesand clickAdd.
    2. Create a service by specifying a name, an IP address, a port, and a protocol type and then clickOK.
  2. Create a load balancing virtual server.
    1. Navigate toConfiguration>Traffic Management>Load Balancing>Virtual Serversand clickAdd.
    2. Create a virtual server by specifying a name, an IP address, a port, and a protocol type and then clickOK.
  3. Bind the service to the load balancing virtual server.
  4. Navigate toConfiguration>Traffic Management>Load Balancing>Virtual Serversand select a server.
    1. ClickEdit.
    2. In theServices and Service Groups, click>and clickAdd Binding.
    3. Select the service you want to bind and enter the weight value.
    4. ClickBind.

To configure load balancing for Citrix Virtual Apps by using the command line interface

  • To create a service, at the command prompt, type:
add service

Example:

add service Service-HTTP-1 192.0.2.5 HTTP 80
  • To create a virtual server, at the command prompt, type:
add lb vserver

Example:

add lb vserver Vserver-LB-1 HTTP 10.102.29.60 80
  • To bind a service to a load balancing virtual server, at the command prompt, type:
bind lb vserver

Example:

bind lb vserver Vserver-LB-1 Service-HTTP-1
Use case 13: Configure Citrix Virtual Apps for load balancing
December 8, 2022
Contributed by:
C S
December 8, 2022
Contributed by:
C S

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