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Getting Started with Citrix NetScaler
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Deploy a Citrix NetScaler VPX instance
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Install a Citrix NetScaler VPX instance on Microsoft Hyper-V servers
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Install a NetScaler VPX instance on Linux-KVM platform
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Prerequisites for Installing NetScaler VPX Virtual Appliances on Linux-KVM Platform
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Provisioning the NetScaler Virtual Appliance by using OpenStack
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Provisioning the NetScaler Virtual Appliance by using the Virtual Machine Manager
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Configuring NetScaler Virtual Appliances to Use SR-IOV Network Interface
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Configuring NetScaler Virtual Appliances to use PCI Passthrough Network Interface
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Provisioning the NetScaler Virtual Appliance by using the virsh Program
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Deploying NetScaler VPX Instances on AWS
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Upgrade and downgrade a NetScaler appliance
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Deprecated features and functionalities
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Overriding Static Proximity Behavior by Configuring Preferred Locations
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Example of a Complete Parent-Child Configuration Using the Metrics Exchange Protocol
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Configuring Global Server Load Balancing for DNS Queries with NAPTR records
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Using the EDNS0 Client Subnet Option for Global Server Load Balancing
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Persistence and persistent connections
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Advanced load balancing settings
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Gradually stepping up the load on a new service with virtual server–level slow start
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Protect applications on protected servers against traffic surges
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Use source IP address of the client when connecting to the server
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Set a limit on number of requests per connection to the server
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Configure automatic state transition based on percentage health of bound services
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Use case 2: Configure rule based persistence based on a name-value pair in a TCP byte stream
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Use case 3: Configure load balancing in direct server return mode
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Use case 6: Configure load balancing in DSR mode for IPv6 networks by using the TOS field
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Use case 7: Configure load balancing in DSR mode by using IP Over IP
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Use case 10: Load balancing of intrusion detection system servers
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Use case 11: Isolating network traffic using listen policies
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Use case 14: ShareFile wizard for load balancing Citrix ShareFile
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Configuring a CloudBridge Connector Tunnel between two Datacenters
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Configuring CloudBridge Connector between Datacenter and AWS Cloud
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Configuring a CloudBridge Connector Tunnel Between a Datacenter and Azure Cloud
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Configuring CloudBridge Connector Tunnel between Datacenter and SoftLayer Enterprise Cloud
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Configuring a CloudBridge Connector Tunnel Between a NetScaler Appliance and Cisco IOS Device
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CloudBridge Connector Tunnel Diagnostics and Troubleshooting
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Deprecated features and functionalities
Some of the NetScaler functionalities are deprecated in 12.0 and in its subsequent releases. Citrix recommends that you do not use these features through the NetScaler command interface, NetScaler GUI, or Nitro automation. However, to ease the transition to new alternatives, the deprecated features are usable for a limited time and will be removed in future releases. Citrix recommends you to use the below alternatives for the following set of deprecated functionalities.
Deprecated features and Its alternatives in NetScaler 12.0
A list of NetScaler features and functionalities are deprecated. For complete information, You can refer to Deprecated List pdf.
Using NSPEPI conversion tool
You can use the nspepi tool to convert commands, expressions, and configurations. For more information, see Converting Expressions by Using NSPEPI Tool topic. Here is a list of conversion from Classic expressions to Advanced expressions.
- ns_true -> true
- ns_false -> false
- REQ.HTTP -> HTTP.REQ
- RES.HTTP -> HTTP.RES
- HEADER “foo” -> HEADER(“foo”)
- CONTAINS ”bar” -> .CONTAINS(“bar”) [Note use of “.”.]
- REQ.IP -> CLIENT.IP
- RES.IP -> SERVER.IP
- SOURCEIP -> SRC
- DESTIP -> DST
- REQ.TCP -> CLIENT.TCP
- RES.TCP -> SERVER.TCP
- SOURCEPORT -> SRCPORT
- DESTPORT -> DSTPORT
- STATUSCODE -> STATUS
- REQ.SSL.CLIENT.CERT -> CLIENT.SSL.CLIENT_CERT
AppQoE Use Cases
When using AppQoE as an alternative for SureConnect feature, you can refer to the following use case configurations.
Use Case 1: To limit simultaneous download of huge files and display loading screen:
add appqoe action NS_RESP -respondWith NS -maxConn 50
add appqoe policy POL_DWN_PKG -rule “HTTP.REQ.URL.CONTAINS(\“tar.gz\”)” -action NS_RESP
bind lb vserver v1 -policyName POL_DWN_PKG -priority 8
<!--NeedCopy-->
Use Case 2: To limit simultaneous download of huge files and display loading screen with alternate content:
add appqoe action ACS_RESP -respondWith ACS -altContentsvcName s2 -altContentPath /netscaler/alt.html -maxConn 50
add appqoe policy POL_DWN_ACS -rule “HTTP.REQ.URL.CONTAINS(\“tar.gz\”)” -action ACS_RESP
bind lb vserver v1 -policyName POL_DWN_ACS -priority 9
<!--NeedCopy-->
Use Case 3: Custom loading screen:
import appqoCe customResp [http://<location>]|[local:<file>] simple_custom_resp
add appqoe action CUST_RESP -respondWith NS simple_custom_resp -maxConn 50
add appqoe policy POL_CRESP -rule “HTTP.REQ.URL.CONTAINS(\“tar.gz\”)” -action CUST_RESP
bind lb vserver v1 -policyName POL_CRESP -priority 10
<!--NeedCopy-->
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