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
On-premises Citrix Gateway as an identity provider to Citrix Cloud
Authentication, authorization, and auditing configuration for commonly used protocols
Troubleshoot authentication and authorization related issues
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Monitor GSLB services
Use case: Deployment of domain name based autoscale service group
Use case: Deployment of IP address based autoscale service group
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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 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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Synchronizing Configuration Files in a High Availability Setup
Restricting High-Availability Synchronization Traffic to a VLAN
Understanding the High Availability Health Check Computation
Managing High Availability Heartbeat Messages on a Citrix ADC Appliance
Remove and Replace a Citrix ADC in a High Availability Setup
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Monitor GSLB services
When you bind a remote service to a GSLB virtual server, the GSLB sites exchange metric information, including network metric Information, which is the round-trip-time and persistence Information.
If a metric exchange connection is momentarily lost between any of the participating sites, the remote site is marked as DOWN and load balancing is performed on the remaining sites that are UP. When metric exchange for a site is DOWN, the remote services belonging to the site are marked DOWN as well.
The Citrix ADC appliance periodically evaluates the state of the remote GSLB services by using either MEP or monitors that are explicitly bound to the remote services. Binding explicit monitors to local services is not required, because the state of the local GSLB service is updated by default using the MEP. However, you can bind explicit monitors to a remote service. When monitors are explicitly bound, the state of the remote service is not controlled by the metric exchange.
By default, when you bind a monitor to a remote GSLB service, the Citrix ADC appliance uses the state of the service reported by the monitor. However, you can configure the Citrix ADC appliance to use monitors to evaluate services in the following situations:
- Always use monitors (default setting).
- Use monitors when MEP is DOWN.
- Use monitors when remote services and MEP are DOWN.
The second and third of the above settings enable the appliance to stop monitoring when MEP is UP. For example, in a hierarchical GSLB setup, a GSLB site provides the MEP information about its child sites to its parent site. Such an intermediate site may evaluate the state of the child site as DOWN because of network issues, though the actual state of the site is UP. In this case, you can bind monitors to the services of the parent site and disable MEP to determine the actual state of the remote service. This option enables you to control the manner in which the states of the remote services are determined.
To use monitors, first create them, and then bind them to GSLB services.
Configure monitor trigger
You can configure a GSLB site to always use monitors (the default), use monitors when MEP is down, or use monitors when both the remote service and MEP are down. In the latter two cases, the Citrix ADC appliance stops monitoring when MEP returns to the UP state.
To configure monitor triggering by using the command line interface
At the command prompt, type:
set gslb site –triggerMonitor (ALWAYS | MEPDOWN | MEPDOWN_SVCDOWN)
Example:
set gslb site Site-GSLB-North-America –triggerMonitor Always
To configure monitor triggering by using the configuration utility
- Navigate toTraffic Management>GSLB>Sites, and double-click the site.
- In theTrigger Monitorsdrop-down list, select an option for when to trigger monitoring.
Add or remove monitors
To add a monitor, you specify the type and the port. You cannot remove a monitor that is bound to a service. You must first unbind the monitor from the service.
To add a monitor by using the command line interface
At the command prompt, type the following commands to create a monitor and verify the configuration:
add lb monitor -type -destPort show lb monitor
Example:
add lb monitor monitor-HTTP-1 -type HTTP -destPort 80 show lb monitor monitor-HTTP-1
To remove a monitor by using the command line interface
At the command prompt, type:
rm lb monitor
To add a monitor by using the configuration utility
Navigate to Traffic Management > Load Balancing > Monitors, and add or delete a monitor.
Bind monitors to a GSLB service
Once you create monitors, you must bind them to GSLB services. When binding monitors to the services, you can specify a weight for the monitor. After binding one or more weighted monitors, you can configure a monitor threshold for the service. This threshold takes the service down if the sum of the bound monitor weights falls below the threshold value.
Note: In the configuration utility, you can set both the weight and the monitoring threshold at the same time that you bind the monitor. When using the command line, you must issue a separate command to set the service’s monitoring threshold.
To bind the monitor to the GSLB service by using the command line interface
At the command prompt, type:
bind monitor [ -state (Enabled | Disabled) ] -weight
Example:
bind monitor monitor-HTTP-1 service-GSLB-1 -state enabled -weight 2
To set the monitoring threshold for a GSLB service by using the command line interface
At the command prompt, type:
set gslb service -monThreshold
Example:
set gslb service service-GSLB-1 -monThreshold 9
To bind the monitor to the GSLB service by using the configuration utility
- Navigate to Traffic Management > GSLB > Services.
- Click theMonitorsection and bind the monitor to the GSLB service.
To set the monitoring threshold for a GSLB service by using the configuration utility
- Navigate to Traffic Management > GSLB > Services.
- Click theMonitor Thresholdsection and enter a threshold value.
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