Getting Started with Citrix ADC
Deploy a Citrix ADC VPX instance
Optimize Citrix ADC VPX performance on VMware ESX, Linux KVM, and Citrix Hypervisors
Apply Citrix ADC VPX configurations at the first boot of the Citrix ADC appliance in cloud
Install a Citrix ADC VPX instance on Microsoft Hyper-V servers
Install a Citrix ADC VPX instance on Linux-KVM platform
Prerequisites for Installing Citrix ADC VPX Virtual Appliances on Linux-KVM Platform
Provisioning the Citrix ADC Virtual Appliance by using OpenStack
Provisioning the Citrix ADC Virtual Appliance by using the Virtual Machine Manager
Configuring Citrix ADC Virtual Appliances to Use SR-IOV Network Interface
Configuring Citrix ADC Virtual Appliances to use PCI Passthrough Network Interface
Provisioning the Citrix ADC Virtual Appliance by using the virsh Program
Provisioning the Citrix ADC Virtual Appliance with SR-IOV, on OpenStack
Configuring a Citrix ADC VPX Instance on KVM to Use OVS DPDK-Based Host Interfaces
Deploy a Citrix ADC VPX instance on AWS
Deploy a VPX high-availability pair with elastic IP addresses across different AWS zones
Deploy a VPX high-availability pair with private IP addresses across different AWS zones
Configure a Citrix ADC VPX instance to use SR-IOV network interface
Configure a Citrix ADC VPX instance to use Enhanced Networking with AWS ENA
Deploy a Citrix ADC VPX instance on Microsoft Azure
Network architecture for Citrix ADC VPX instances on Microsoft Azure
Configure multiple IP addresses for a Citrix ADC VPX standalone instance
Configure a high-availability setup with multiple IP addresses and NICs
Configure a high-availability setup with multiple IP addresses and NICs by using PowerShell commands
Configure a Citrix ADC VPX instance to use Azure accelerated networking
Configure HA-INC nodes by using the Citrix high availability template with Azure ILB
Configure a high-availability setup with Azure external and internal load balancers simultaneously
Configure address pools (IIP) for a Citrix Gateway appliance
Upgrade and downgrade a Citrix ADC appliance
Solutions for Telecom Service Providers
Load Balance Control-Plane Traffic that is based on Diameter, SIP, and SMPP Protocols
Provide Subscriber Load Distribution Using GSLB Across Core-Networks of a Telecom Service Provider
Authentication, authorization, and auditing application traffic
Basic components of authentication, authorization, and auditing configuration
Authentication, authorization, and auditing configuration for commonly used protocols
Troubleshoot authentication and authorization related issues
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Persistence and persistent connections
Advanced load balancing settings
Gradually stepping up the load on a new service with virtual server–level slow start
Protect applications on protected servers against traffic surges
Retrieve location details from user IP address using geolocation database
Use source IP address of the client when connecting to the server
Use client source IP address for backend communication in a v4-v6 load balancing configuration
Set a limit on number of requests per connection to the server
Configure automatic state transition based on percentage health of bound services
Use case 2: Configure rule based persistence based on a name-value pair in a TCP byte stream
Use case 3: Configure load balancing in direct server return mode
Use case 6: Configure load balancing in DSR mode for IPv6 networks by using the TOS field
Use case 7: Configure load balancing in DSR mode by using IP Over IP
Use case 10: Load balancing of intrusion detection system servers
Use case 11: Isolating network traffic using listen policies
Use case 12: Configure Citrix Virtual Desktops for load balancing
Use case 13: Configure Citrix Virtual Apps for load balancing
Use case 14: ShareFile wizard for load balancing Citrix ShareFile
Use case 15: Configure layer 4 load balancing on the Citrix ADC appliance
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Authentication and authorization for System Users
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Configuring a CloudBridge Connector Tunnel between two Datacenters
Configuring CloudBridge Connector between Datacenter and AWS Cloud
Configuring a CloudBridge Connector Tunnel Between a Datacenter and Azure Cloud
Configuring CloudBridge Connector Tunnel between Datacenter and SoftLayer Enterprise Cloud
Configuring a CloudBridge Connector Tunnel Between a Citrix ADC Appliance and Cisco IOS Device
CloudBridge Connector Tunnel Diagnostics and Troubleshooting
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gRPC reverse bridging
In this scenario, the Citrix ADC appliance seamlessly bridges gRPC content received on an HTTP/2 connection and forwards it to the back-end gRPC server over HTTP/1.1.
How reverse bridging works
The following diagram shows how components interact with each other in a gRPC bridging configuration.
- Client sends a gRPC request on HTTP/2 connection with gRPC headers in HTTP/2 frames and proto-buf payload.
- Based on policy evaluation, the load balancing virtual server (with gRPC service bound to it) translates and forwards the request over HTTP/1.1 connection to backend server.
- On receiving the HTTP/1.1 response, if there is no grpc-status code in the response, ADC derives a grpc status-case from the HTTP response code.
- The appliance then inserts the gRPC headers into HTTP/2 trailer before forwarding the response to the client.
Configure gRPC reverse bridging by using the CLI
To configure gRPC reverse bridging, you must complete the following steps:
- Add HTTP profile 1 with HTTP/2 and HTTP/2 direct enabled for load balancing virtual server
- Add HTTP profile 2 with HTTP/2 disabled for back-end server
- Add load balancing virtual server of type SSL/HTTP and set to HTTP profile 1
- Add service for gRPC endpoint and set to HTTP profile 2
- Bind Service for gRPC endpoint to load balancing virtual server
- Map HTTP-status code to gRPC status code if the response does not have a grpc status code
Add HTTP profile 1 with HTTP/2 and HTTP/2 direct enabled for load balancing virtual server
To begin the reverse bridging configuration, you must add two HTTP profiles. One profile for enabling HTTP/2 for gRPC client requests and another profile for disabling HTTP/2 for non-gRPC server response.
At the command prompt, type:
add ns httpProfile
Example:
add ns httpProfile profile1 –http2 ENABLED -http2Direct ENABLED
Add HTTP profile 2 with HTTP/2 disabled for back-end server
To disable HTTP/2 support on the HTTP profile for back-end server response by using the Citrix ADC command line.
At the command prompt, type:add ns httpProfile
Example:
add ns httpProfile profile2 –http2 DISABLED http2Direct DISABLED
Add load balancing virtual server of type SSL/HTTP and set to HTTP profile 1
To add a load balancing virtual server by using the Citrix ADC command interface.
At the command prompt, type:
add lb vserver
Example:
add lb vserver lb-grpc HTTP 10.10.10.10 80 -httpProfileName profile1
Note:
If you are using a load balancing virtual server of type SSL, then you must bind the server certificate. See Bind server certificate topic for more information.
Add service for gRPC endpoint and set to HTTP profile 2
To add a service with gRPC endpoint and set HTTP profile 2 by using the Citrix ADC command interface.
At the command prompt, type:
add service
Example:
add service svc-grpc 10.10.10.11 HTTP 80 -httpProfileName profile2
Bind service for gRPC endpoint to load balancing virtual server
To bind a gRPC service to load balancing virtual server by using the Citrix ADC command interface.
At the command interface, type:
bind lb vserver
Example:
bind lb vserver lb-grpc svc-grpc
Map HTTP response code to gRPC status code
If the server does not generate a gRPC status code, the Citrix ADC appliance generates a suitable gRPC status code based on the HTTP response received. The status codes are listed in the below mapping table.
HTTP Response status-code | gRPC status code |
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200 | OK |
400 | INTERNAL = 13 |
403 | PERMISSION_DENIED = 7 |
401 | UNAUTHENTICATED = 16 |
429, 502, 503, 504 | UNAVAILABLE = 14 |
404 | UNIMPLEMENTED = 12 |
Configure gRPC reverse bridging by using the GUI
Add HTTP profile 1 with HTTP/2 and HTTP/2 direct enabled for load balancing virtual server
- Navigate to System > Profiles and click HTTP Profiles.
- Enable HTTP/2 option in a HTTP profile 1.
Add HTTP profile 2 with HTTP/2 disabled for back-end server
- Navigate toSystem > Profilesand clickHTTP Profiles.
- EnableHTTP/2option in a HTTP profile 2.
- ClickOK.
Add load balancing virtual server of type SSL/HTTP and set to HTTP profile 1
- Navigate toTraffic Management > Load Balancing > Virtual Servers.
- ClickAddto create a load balancing virtual server for gRPC traffic.
- InLoad Balancing Virtual Serverpage, clickProfiles.
- In theProfilessection, select the profile type as HTTP.
- ClickOKand thenDone.
Add service with gRPC endpoint and set to HTTP profile 2
- Navigate toTraffic Management > Load Balancing > Services.
- ClickAddto create an application server for gRPC traffic.
- InLoad Balancing Servicepage, go toProfilesection.
- UnderProfiles, addHTTP profilefor gRPC endpoint.
- ClickOKand thenDone.
Bind Service for gRPC endpoint to load balancing virtual server
- Navigate toTraffic Management > Load Balancing > Virtual Servers.
- ClickAddto create a load balancing virtual server for gRPC traffic.
- InLoad Balancing Virtual Serverpage, clickServiceandService Groupssection.
- In theLoad Balancing Virtual Server Service Bindingpage, select the gRPC service to bind.
- ClickCloseand thenDone.
For detail GUI procedures, seeLoad Balancingtopic.
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