- Action Analytics
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AppExpert Applications and Templates
- How AppExpert application works
- Get started with AppExpert
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Customize AppExpert Configuration
- Configure public endpoints
- Configure services and service groups for an application unit
- Create application units
- Configure application unit rules
- Configure policies for application units
- Configure application units
- Configure public endpoints for an application
- Specify the order of evaluation of application units
- Configure persistency groups for application units
- View AppExpert applications and configure entities by using application visualizer
- Configure user authentication
- Monitor Citrix ADC statistics
- Delete an AppExpert application
- Configure application authentication, authorization, and auditing
- Set up a custom Citrix ADC application
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Creating and Managing Template Files
- Exporting an AppExpert Application to a Template File
- Exporting a Content Switching Virtual Server Configuration to a Template File
- Creating Variables in Application Templates
- Uploading and Downloading Template Files
- Understanding Citrix ADC Application Templates and Deployment Files
- Deleting a Template File
- Citrix Gateway Applications
- AppQoE
- Entity Templates
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HTTP Callouts
- How an HTTP Callout Works
- Notes on the Format of HTTP Requests and Responses
- Configuring an HTTP Callout
- Verifying the Configuration
- Invoking an HTTP Callout
- Avoiding HTTP Callout Recursion
- Caching HTTP Callout Responses
- Use Case: Filtering Clients by Using an IP Blacklist
- Use Case: ESI Support for Fetching and Updating Content Dynamically
- Use Case: Access Control and Authentication
- Use Case: OWA-Based Spam Filtering
- Use Case: Dynamic Content Switching
- Pattern Sets and Data Sets
- Variables
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Policies and Expressions
- Introduction to Policies and Expressions
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Configuring Advanced Policy Infrastructure
- Rules for Names in Identifiers Used in Policies
- Creating or Modifying a Policy
- Policy Configuration Examples
- Binding Policies Using Advanced Policy
- Unbinding a Policy
- Creating Policy Labels
- Configuring a Policy Label or Virtual Server Policy Bank
- Invoking or Removing a Policy Label or Virtual Server Policy Bank
- Configuring and Binding Policies with the Policy Manager
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Configuring Advanced Policy Expression: Getting Started
- Basic Elements of an Advanced Policy Expression
- Compound Advanced Policy Expressions
- Specifying the Character Set in Expressions
- Classic Expressions in Advanced Policy Expressions
- Configuring Advanced Policy Expressions in a Policy
- Configuring Named Advanced Policy Expressions
- Configuring Advanced Policy Expressions Outside the Context of a Policy
- Advanced Policy Expressions: Evaluating Text
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Advanced Policy Expressions: Working with Dates, Times, and Numbers
- Format of Dates and Times in an Expression
- Expressions for the Citrix ADC System Time
- Expressions for SSL Certificate Dates
- Expressions for HTTP Request and Response Dates
- Generating the Day of the Week, as a String, in Short and Long Formats
- Expression Prefixes for Numeric Data Other Than Date and Time
- Converting Numbers to Text
- Virtual Server Based Expressions
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Advanced Policy Expressions: Parsing HTTP, TCP, and UDP Data
- About Evaluating HTTP and TCP Payload
- Expressions for Identifying the Protocol in an Incoming IP Packet
- Expressions for HTTP and Cache-Control Headers
- Expressions for Extracting Segments of URLs
- Expressions for HTTP Status Codes and Numeric HTTP Payload Data Other Than Dates
- SIP Expressions
- Operations for HTTP, HTML, and XML Encoding and “Safe” Characters
- Expressions for TCP, UDP, and VLAN Data
- Expressions for Evaluating a DNS Message and Identifying Its Carrier Protocol
- XPath and HTML, XML, or JSON Expressions
- Encrypting and Decrypting XML Payloads
- Advanced Policy Expressions: Parsing SSL Certificates
- Advanced Policy Expressions: IP and MAC Addresses, Throughput, VLAN IDs
- Advanced Policy Expressions: Stream Analytics Functions
- Advanced Policy Expressions: DataStream
- Typecasting Data
- Regular Expressions
- Configuring Classic Policies and Expressions
- Expressions Reference-Advanced Policy Expressions
- Expressions Reference-Classic Expressions
- Summary Examples of Default Syntax Expressions and Policies
- Tutorial Examples of Default Syntax Policies for Rewrite
- Tutorial Examples of Classic Policies
- Migration of Apache mod_rewrite Rules to the Default Syntax
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Rate Limiting
- Configuring a Stream Selector
- Configuring a Traffic Rate Limit Identifier
- Configuring and Binding a Traffic Rate Policy
- Viewing the Traffic Rate
- Testing a Rate-Based Policy
- Examples of Rate-Based Policies
- Sample Use Cases for Rate-Based Policies
- Rate Limiting for Traffic Domains
- Configure rate limit at packet level
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Responder
- Enabling the Responder Feature
- Configuring a Responder Action
- Configuring a Responder Policy
- Binding a Responder Policy
- Setting the Default Action for a Responder Policy
- Responder Action and Policy Examples
- Diameter Support for Responder
- RADIUS Support for Responder
- DNS Support for the Responder Feature
- Troubleshooting
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Rewrite
- How Rewrite Works
- Enabling the Rewrite Feature
- Configuring a Rewrite Action
- Configuring a Rewrite Policy
- Binding a Rewrite Policy
- Configuring Rewrite Policy Labels
- Configuring the Default Rewrite Action
- Bypassing the Safety Check
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Rewrite Action and Policy Examples
- Example 1: Delete Old X-Forwarded-For and Client-IP Headers
- Example 2: Adding a Local Client-IP Header
- Example 3: Tagging Secure and Insecure Connections
- Example 4: Mask the HTTP Server Type
- Example 5: Redirect an External URL to an Internal URL
- Example 6: Migrating Apache Rewrite Module Rules
- Example 7: Marketing Keyword Redirection
- Example 8: Redirect Queries to the Queried Server
- Example 9: Home Page Redirection
- Example 10: Policy-based RSA Encryption
- Example 11: policy-based RSA encryption with no padding
- URL Transformation
- RADIUS Support for the Rewrite Feature
- Diameter Support for Rewrite
- DNS Support for the Rewrite Feature
- String Maps
- URL Sets
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Configuring Application Units
To configure an application unit by using the GUI:
- Navigate to AppExpert > Applications > Application Unit section and then click the plus icon to add a new application unit for a traffic subset.
- In the Application Unit slider, set the following parameters:
- Name
- Expression
You can insert an expression either by adding the expression components manually or by using the Expression Editor link. To manually add an expression, enter a selector component and then type a period (.) to display a list from which you can select the next component. For example, type HTTP and then type a period. A drop-down menu appears. The contents of this menu provide the keywords that can follow the initial keyword that you entered. Select a component from the drop-down menu. The Expression* text box now displays the components that you have added to the expression (for example, HTTP.REQ). Continue adding components until the complete expression is formed.
If you prefer assistance to form the expression, you can use the Expression Editor link. On the Expression Editor page, you can form an expression by selecting components from the drop-down boxes. Select the components and click Done to insert the expression on the Application Unit page.
- Click Continue to bind services and service groups.
- Click the Service section to select or add a virtual service and bind it to the application unit.
- Click Continue and click the Service Group section to select or add a virtual service group and bind it to the application unit.
- Click Bind and Continue to configure Advanced Settings (such as Policies, Method, Persistence, Protection, Profiles, Push, Authentication, and Traffic Settings) for the application unit.
- Click the plus icon in each section to set the configuration parameters.
- Click OK and then Done.
To edit an application unit for an application by using the GUI:
Navigate to AppExpert > Applications, select an application and click Edit. In the Application Unit section, select an entity, click the edit icon and modify the application unit settings.
Note: You cannot modify the name and rule expression for an existing application unit.
Citrix ADC’s video tutorials enable you to understand Citrix ADC features in an easy and simple way. Watch https://www.youtube.com/watch?v=bJ5_i8fV2hc video to learn how configure an application unit.