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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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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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Support for load balancing profile
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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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Support for load balancing profile
A load balancing configuration has a large number of parameters, so setting the same parameters on a number of virtual servers can become tedious. From release 11.1, a load balancing (LB) profile makes this task easier. You can now set load balancing parameters in a profile and associate this profile with virtual servers, instead of setting these parameters on each virtual server.
The following parameters are presently supported in an LB profile:
- HTTPonlyflag—Include the HttpOnly attribute in persistence cookies. The HttpOnly attribute limits the scope of a cookie to HTTP requests and helps mitigate the risk of cross-site scripting attacks.
- UseSecuredPersistenceCookie—Encrypt the persistence cookie values by using a SHA2 hash algorithm.
- Cookiepassphrase—Specify the passphrase used to generate a secured persistence cookie value.
- DBS_LB—Enable database specific load balancing for MySQL and MSSQL service types.
- Cl_process_local—Packets destined to a virtual server in a cluster are not steered. Enable option for single packet request response mode or when the upstream device is performing a proper RSS for connection based distribution.
Note
You can set DBS_LB and Cl_process_local parameters on a virtual server and in the profile. If you enable these parameters on a virtual server and then set a profile to this virtual server, the parameters appear as disabled in the output of the “show lb vserver” command for that virtual server. Check the profile to see the actual status of these parameters. In addition, if you set and then unset a profile to a virtual server, the parameters will be set with default values for that virtual server.
To create an LB profile by using the CLI
At the command prompt, type:
add lb profile <lbprofilename> -dbsLb ( ENABLED | DISABLED ) -processLocal ( ENABLED | DISABLED ) -httpOnlyCookieFlag ( ENABLED | DISABLED ) -cookiePassphrase -useSecuredPersistenceCookie ( ENABLED | DISABLED )
Example:
add lb profile p1
Done
show lb profile p1
LB Profile name: p1
DBS LB : DISABLED Process Local: DISABLED
Persistence Cookie HttpOnly Flag: ENABLED
Use Secured Persistence Cookie Flag: DISABLED
No of vservers bound: 0
Done
To create an LB profile by using the GUI
Navigate to System > Profiles > LB Profile, and add a profile.
To associate an LB profile with an LB virtual server by using the CLI
At the command prompt, type:
set lb vserver <name> -lbprofilename <string>
Example
set lbvserver lbvip1 -lbprofile p1
Done
sh lb vserver lbvip1
lbvip1 (203.0.113.1:80) - HTTP Type: ADDRESS
State: UP
Last state change was at Wed May 25 12:36:20 2016
Time since last state change: 0 days, 00:01:26.140
Effective State: UP ARP:DISABLED
Client Idle Timeout: 180 sec
Down state flush: ENABLED
Disable Primary Vserver On Down : DISABLED
Appflow logging: ENABLED
Port Rewrite : DISABLED
No. of Bound Services : 2 (Total) 2 (Active)
Configured Method: LEASTCONNECTION BackupMethod: ROUNDROBIN
Mode: IP
Persistence: NONE
Vserver IP and Port insertion: OFF
Push: DISABLED Push VServer:
Push Multi Clients: NO
Push Label Rule: none
L2Conn: OFF
Skip Persistency: None
Listen Policy: NONE
IcmpResponse: PASSIVE
RHIstate: PASSIVE
New Service Startup Request Rate: 0 PER_SECOND, Increment Interval: 0
Mac mode Retain Vlan: DISABLED
DBS_LB: DISABLED
Process Local: DISABLED
Traffic Domain: 0
LB Profile: p1
Done
To associate an LB profile with an LB virtual server by using the GUI
- Navigate to Traffic Management > Load Balancing > Virtual Servers.
- Select a virtual server, and click Edit.
- In Advanced Settings, click Profiles.
- In the LB Profile list, select the profile to associate with this virtual server.
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