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Getting Started with NetScaler
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Deploy a NetScaler VPX instance
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Optimize NetScaler VPX performance on VMware ESX, Linux KVM, and Citrix Hypervisors
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Apply NetScaler VPX configurations at the first boot of the NetScaler appliance in cloud
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Configure simultaneous multithreading for NetScaler VPX on public clouds
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Install a 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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Configure a NetScaler VPX on KVM hypervisor to use Intel QAT for SSL acceleration in SR-IOV mode
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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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Provisioning the NetScaler virtual appliance with SR-IOV on OpenStack
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Configuring a NetScaler VPX instance on KVM to use OVS DPDK-Based host interfaces
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Deploy a NetScaler VPX instance on AWS
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Deploy a VPX high-availability pair with elastic IP addresses across different AWS zones
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Deploy a VPX high-availability pair with private IP addresses across different AWS zones
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Protect AWS API Gateway using the NetScaler Web Application Firewall
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Configure a NetScaler VPX instance to use SR-IOV network interface
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Configure a NetScaler VPX instance to use Enhanced Networking with AWS ENA
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Deploy a NetScaler VPX instance on Microsoft Azure
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Network architecture for NetScaler VPX instances on Microsoft Azure
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Configure multiple IP addresses for a NetScaler VPX standalone instance
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Configure a high-availability setup with multiple IP addresses and NICs
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Configure a high-availability setup with multiple IP addresses and NICs by using PowerShell commands
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Deploy a NetScaler high-availability pair on Azure with ALB in the floating IP-disabled mode
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Configure a NetScaler VPX instance to use Azure accelerated networking
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Configure HA-INC nodes by using the NetScaler high availability template with Azure ILB
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Configure a high-availability setup with Azure external and internal load balancers simultaneously
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Configure a NetScaler VPX standalone instance on Azure VMware solution
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Configure a NetScaler VPX high availability setup on Azure VMware solution
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Configure address pools (IIP) for a NetScaler Gateway appliance
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Deploy a NetScaler VPX instance on Google Cloud Platform
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Deploy a VPX high-availability pair on Google Cloud Platform
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Deploy a VPX high-availability pair with external static IP address on Google Cloud Platform
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Deploy a single NIC VPX high-availability pair with private IP address on Google Cloud Platform
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Deploy a VPX high-availability pair with private IP addresses on Google Cloud Platform
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Install a NetScaler VPX instance on Google Cloud VMware Engine
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Solutions for Telecom Service Providers
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Load Balance Control-Plane Traffic that is based on Diameter, SIP, and SMPP Protocols
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Provide Subscriber Load Distribution Using GSLB Across Core-Networks of a Telecom Service Provider
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Authentication, authorization, and auditing application traffic
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Basic components of authentication, authorization, and auditing configuration
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Web Application Firewall protection for VPN virtual servers and authentication virtual servers
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On-premises NetScaler Gateway as an identity provider to Citrix Cloud
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Authentication, authorization, and auditing configuration for commonly used protocols
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Troubleshoot authentication and authorization related issues
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Configure DNS resource records
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Configure NetScaler as a non-validating security aware stub-resolver
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Jumbo frames support for DNS to handle responses of large sizes
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Caching of EDNS0 client subnet data when the NetScaler appliance is in proxy mode
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Use case - configure the automatic DNSSEC key management feature
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Use Case - configure the automatic DNSSEC key management on GSLB deployment
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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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Retrieve location details from user IP address using geolocation database
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Use source IP address of the client when connecting to the server
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Use client source IP address for backend communication in a v4-v6 load balancing configuration
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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 12: Configure Citrix Virtual Desktops for load balancing
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Use case 13: Configure Citrix Virtual Apps and Desktops for load balancing
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Use case 14: ShareFile wizard for load balancing Citrix ShareFile
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Use case 15: Configure layer 4 load balancing on the NetScaler appliance
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Authentication and authorization for System Users
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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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Configuring a CloudBridge Connector tunnel between two datacenters
You can configure a CloudBridge Connector tunnel between two different datacenters to extend your network without reconfiguring it, and leverage the capabilities of the two datacenters. A CloudBridge Connector tunnel between the two geographically separated datacenters enables you to implement redundancy and safeguard your setup from failure. The CloudBridge Connector tunnel helps achieve optimal utilization of infrastructure and resources across datacenters. The applications available across the two datacenters appear as local to the user.
To connect a datacenter to another datacenter, you set up a CloudBridge Connector tunnel between a NetScaler appliance in one datacenter and a NetScaler appliance in the other datacenter.
As an illustration of CloudBridge Connector tunnel between datacenters, consider an example in which a CloudBridge Connector tunnel is set up between NetScaler appliance NS_Appliance-1 in datacenter DC1 and NetScaler appliance NS_Appliance-2 in datacenter DC2.
Both NS_Appliance-1 and NS_Appliance-2 function in L2 and L3 mode. They enable communication between private networks in datacenters DC1 and DC2. In L3 mode, NS_Appliance-1 and NS_Appliance-2 enable communication between client CL1 in datacenter DC1 and server S1 in the datacenter DC2 through the CloudBridge Connector tunnel. Client CL1 and server S1 are on different private networks.
Because client CL1 and server S1 are on different private networks, L3 mode is enabled on NS_Appliance-1 and NS_Appliance-2, and routes are updated as follows:
- CL1 has a route to NS_Appliance-1 for reaching S1.
- NS_Appliance-1 has a route to NS_Appliance-2 for reaching S1.
- S1 has a route to NS_Appliance-2 for reaching CL1.
- NS_Appliance-2 has a route to NS_Appliance-1 for reaching CL1.
The following table lists the settings on NetScaler appliance NS_Appliance-1 in datacenter DC1.
The following table lists the settings on NetScaler appliance NS_Appliance-2 in datacenter DC2.
Entity | Name | Details |
---|---|---|
The NSIP address | 198.51.100.12 | |
SNIP address | 198.51.100.15 | |
CloudBridge Connector tunnel | Cloud_Connector_DC1-DC2 |
|
Points to consider for configuring CloudBridge Connector tunnel
Before setting up a CloudBridge Connector tunnel, verify that the following tasks have been completed:
- Deploy and set up a NetScaler appliance in each of the two datacenters.
- Make sure that the CloudBridge Connector tunnel end-point IP addresses are accessible to each other.
Configuration procedure
To set up a CloudBridge Connector tunnel between a NetScaler appliance that resides in one datacenter and another NetScaler appliance that resides in the other datacenter, use the GUI or the command line interface of one of the NetScaler appliances.
When you use the GUI, the CloudBridge Connector tunnel configuration created on the first NetScaler appliance is automatically pushed to the other endpoint (the other NetScaler appliance) of the CloudBridge Connector tunnel. Therefore, you do not have to access the GUI of the other NetScaler appliance to create the corresponding CloudBridge Connector tunnel configuration on it.
The CloudBridge Connector tunnel configuration on each of the NetScaler appliances consists of the following entities:
- IPSec profile—An IPSec profile entity specifies the IPSec protocol parameters, such as IKE version, encryption algorithm, hash algorithm, and PSK, to be used by the IPSec protocol in the CloudBridge Connector tunnel.
- GRE tunnel—An IP tunnel specifies the local IP address (a public SNIP address configured on the local NetScaler appliance), remote IP address (a public SNIP address configured on the remote NetScaler appliance), protocol (GRE) used to set up the CloudBridge Connector tunnel, and an IPSec profile entity.
- Create a PBR rule and associate the IP tunnel with it—A PBR entity specifies a set of conditions and an IP tunnel entity. The source IP address range and the destination IP range are the conditions for the PBR entity. You must set the source IP address range and the destination IP address range to specify the subnet whose traffic is to traverse the CloudBridge Connector tunnel. For example, consider a request packet that originates from a client on the subnet in the first datacenter and is destined to a server on the subnet in the second datacenter. If this packet matches the source and destination IP address range of the PBR entity on the NetScaler appliance in the first datacenter, it is sent across the CloudBridge Connector tunnel associated with the PBR entity.
To create an IPSEC profile by using the command line interface
At the command prompt, type:
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add ipsec profile <name> [-ikeVersion ( V1 | V2 )] [-encAlgo ( AES | 3DES ) ...] [-hashAlgo <hashAlgo\> ...] [-lifetime <positive_integer>] (-psk | (-publickey<string> -privatekey <string>-peerPublicKey <string>))[-livenessCheckInterval <positive_intege>][-replayWindowSize \<positive_integer>] [-ikeRetryInterval <positive_integer>] [-retransmissiontime <positive_integer>]
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show ipsec profile <name>
To create an IP tunnel and bind the IPSEC profile to it by using the command line interface
At the command prompt, type:
add ipTunnel <name> <remote><remoteSubnetMask> <local> [-protocol <protocol>] [-ipsecProfileName <string>]
show ipTunnel <name>
To create a PBR rule and bind the IPSEC tunnel to it by using the command line interface
At the command prompt, type:
add ns pbr <pbr_name> ALLOW -srcIP = <local_subnet_range> -destIP = <remote_subnet_range> -ipTunnel <tunnel_name>
apply ns pbrs
show ns pbr <pbr_name>
Example
add ipsec profile Cloud_Connector_DC1-DC2 -encAlgo AES -hashAlgo HMAC_SHA1
Done
> add ipTunnel Cloud_Connector_DC1-DC2 203.0.113.133 255.255.255.255 198.51.100.15 -protocol GRE -ipsecProfileName Cloud_Connector_DC1-DC2
Done
> add ns pbr PBR-DC1-DC2 ALLOW -srcIP 198.51.100.15 -destIP 203.0.113.133 ipTunnel Cloud_Connector_DC1-DC2
Done
> apply ns pbrs
Done
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To configure a CloudBridge Connector tunnel in a NetScaler appliance by using the GUI
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Type the NSIP address of a NetScaler appliance in the address line of a web browser.
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Log on to the GUI of the NetScaler appliance by using your account credentials for the appliance.
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Navigate to System > CloudBridge Connector.
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In the right pane, under Getting Started, click Create/Monitor CloudBridge.
The first time you configure a CloudBridge Connector tunnel on the appliance, a Welcome screen appears.
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On the Welcome screen click Get Started.
Note:
If you already have a CloudBridge Connector tunnel configured on the NetScaler appliance, the Welcome screen does not appear, so you do not click Get Started.
- In the CloudBridge Connector Setup pane, click NetScaler.
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In the NetScaler pane, provide your account credentials for the remote NetScaler appliance. Click Continue.
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In the CloudBridge Connector Setting pane, set the following parameter:
- CloudBridge Connector Name—Name for the CloudBridge Connector configuration on the local appliance. Must begin with an ASCII alphabetic or underscore (_) character, and must contain only ASCII alphanumeric, underscore, hash (#), period (.), space, colon (:), at (@), equals (=), and hyphen (-) characters. Cannot be changed after the CloudBridge Connector configuration is created.
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Under Local Setting, set the following parameter:
- Subnet IP—IP address of the local endpoint of the CloudBridge Connector tunnel.
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Under Remote Setting, set the following parameter:
- Subnet IP—IP address of the peer endpoint of the CloudBridge Connector tunnel.
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Under PBR Setting, set the following parameters:
- Operation—Either the equals (=) or does not equal (!=) logical operator.
- Source IP Low —Lowest source IP address to match against the source IP address of an outgoing IPv4 packet.
- Source IP High—Highest source IP address to match against the source IP address of an outgoing IPv4 packet.
- Operation—Either the equals (=) or does not equal (!=) logical operator.
- Destination IP Low*—Lowest destination IP address to match against the destination IP address of an outgoing IPv4 packet.
- Destination IP High—Highest destination IP address to match against the destination IP address of an outgoing IPv4 packet.
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(Optional) Under Security Settings, set the following IPSec protocol parameters for the CloudBridge Connector tunnel:
- Encryption Algorithm—Encryption algorithm to be used by the IPSec protocol in the CloudBridge tunnel.
- Hash Algorithm—Hash algorithm to be used by the IPSec protocol in the CloudBridge tunnel.
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Key—Select one of the following IPSec authentication methods to be used by the two peers to mutually authenticate.
- Auto Generate Key—Authentication based on a text string, called a pre-shared key (PSK), generated automatically by the local appliance. The PSKs keys of the peers are matched against each other for authentication.
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Specific Key—Authentication based on a manually entered PSK. The PSKs of the peers are matched against each other for authentication.
- Pre Shared Security Key—The text string entered for pre-shared key based authentication.
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Upload Certificates—Authentication based on digital certificates.
- Public Key—A local digital certificate to be used to authenticate the local NetScaler appliance to the peer before establishing IPSec security associations. The same certificate should be present and set for the Peer Public Key parameter in the peer.
- Private Key—Private key of the local digital certificate.
- Peer Public Key—Digital certificate of the peer. Used to authenticate the peer to the local end point before establishing IPSec security associations. The same certificate should be present and set for the Public key parameter in the peer.
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Click Done.
The new CloudBridge Connector tunnel configuration on both the NetScaler appliances appears on the Home tab of the respective GUI. The current status of the CloudBridge connector tunnel is indicated in the Configured CloudBridge Connectors pane. A green dot indicates that the tunnel is up. A red dot indicates that the tunnel is down.
Monitoring the CloudBridge Connector Tunnel
You can monitor the performance of CloudBridge Connector tunnels on a NetScaler appliance by using CloudBridge Connector tunnel statistical counters. For more information about displaying CloudBridge Connector tunnel statistics on a NetScaler appliance, see Monitoring CloudBridge Connector Tunnels.
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