With over 3,000 features, when it comes to NetScaler, no question is a silly question. If you’ve got a question, chances are we’ve probably been asked it before, so here’s our pick of the common FAQ’s.

Can’t see what you are looking for? Don't be afraid to ask.

Where can I find Citrix SD-WAN training? +

Citrix run a range of instructor led courses, online e-learning and SD-WAN labs and workshops, visit the Citrix Education website for details. cloudDNA can offer bespoke training tailored to your specific requirements and use cases, please contact us for further information.

What are Citrix SD-WAN API's? +

Application Programming Interface (API) - NITRO APIs (REST APIs) were introduced in NetScaler SD-WAN release v9.3. NITRO APIs can be used for third-party software integration. Detailed API documentation is available in the product installation. APIs are available for the following:

Configuration:

  • Network Adaptors: Config Package - Import, Export, Save As

Monitoring:

  • Access Interfaces: Virtual Path Services: Ethernet MAC Learning: Intranet:Observed Protocols
  • Paths (Detailed) : Appliance Routes: Rule Group:Site: MPLS Queues: WAN Link Usage: GRE Tunnel
  • IPsec Tunnel: Multicast Group; Dynamic Routing Protocol

Configuration editor:

  • App QoE Application Routes: DNS Settings: Office 365
  • WAN optimisation Application Classifiers and Service Classes.

What is Citrix SD-WAN Adaptive Bandwidth? +

This feature is applicable to networks with VSAT, LOS, Microwave, 3G/4G/LTE WAN Links, for which the available bandwidth varies based on weather and atmosphere conditions, location,and line of site obstructions. It allows the SD-WAN appliances to adjust the bandwidth rate on the WAN Link dynamically based on a defined bandwidth range (minimum and maximum WAN Link rate) to use the maximum amount of available bandwidth without making the paths BAD.

What is Citrix SD-WAN High Adaptive (HA)? +

Citrix SD-WAN appliances can be deployed in high availability configuration as a pair of appliances in Active/Standby roles. There are three modes of high availability deployment:

  • Parallel Inline high availability
  • Fail-to-Wire high availability
  • One-Arm high availability


What is Citrix SD-WAN Application Qos? +

The Citrix SD-WAN solution includes a sophisticated application Quality-of-Services (QoS) engine that accesses the application traffic and prioritises critical applications. It also understands the requirements for WAN network quality and picks a network path based on the quality characteristics in real time. QoS classes, IP rules, application QoS rules, and other components are required to define application QoS.

What is Citrix SD-WAN routing domain? +

Citrix SD-WAN allows segmenting networks for more security and manageability by using Virtual Routing and Forwarding (VRF). For example, you can separate a guest network traffic from employee traffic, create distinct routing domains to segment large corporate networks, and segment traffic to support multiple customer networks. Each routing domain has its own routing table and enables the support for overlapping IP subnets, Citrix SD-WAN appliances implement OSPF and BGP routing domains to control and segment network traffic.

Citrix SD-WAN v's Silverpeak +

Please speak to a cloudDNA technical specialist for the latest competitive analysis.

Citrix SD-WAN on SDX +

From release 12.1 49.xx, you can deploy a Citrix SD-WAN VPX instance on Citrix ADC SDX 14XXX and SDX 115XX appliances:

https://docs.citrix.com/en-us/...

You can deploy a Citrix SD-WAN VPX appliance on a Citrix ADC SDX policy-based route (PBR) mode or in inline mode.

For more information contact a cloudDNA technical specialist.

Citrix SD-WAN v's Steelhead (Riverbed) +

Please speak to cloudDNA technical specialist for the latest competitive analysis.

Citrix SD-WAN v's VeloCloud (VMWare) +

Please speak to cloudDNA technical specialist for the latest competitive analysis.

Citrix SD-WAN v's Viptela (Cisco) +

Please speak to clouDNA technical specialist for the latest competitive analysis.

Citrix SD-WAN v's Meraki (Cisco) +

Please speak to cloudDNA technical specialist for the latest competitive analysis.

Citrix SD-WAN v's WaaS (Cisco) +

Please speak to cloudDNA technical specialist for the latest competitive analysis.

Citrix SD-WAN v's Citrix ADC +

Citrix SD-WAN provides Wide AREA Network optimisation and resilience and should not be confused with Citrix ADC (formally NetScaler ADC) which is an Application Delivery Controller.

How does Citrix SD-WAN work on Google Cloud? +

With Citrix SD-WAN, you can easily and cost-effectively spin up SD-WAN instances to reliably connect branches to Google Cloud Platform (GCP) through virtual overlays, Citrix SD-WAN supports high reliable and performant connectivity from office locations to workloads running on GCP on-premise resources such as database servers, offering advanced features including:

Deliver an optimal application experience to Citrix Virtual Apps and Desktops on GCP through integration with HDX,which uses the ICA protocol. Provide exceptional performance to applications running on GCP, including G Suite, with deep packet inspection, QoS, link bonding and selective packet duplication for critical traffic such as VoIP and SCADA. Quickly set up high-availability connections to Google virtual private cloud (VPcs) and manage the entire network from Citrix orchestration service.

Hoe does Citrix SD-WAN work with AWS? +

Citrix SD-WAN connects branch offices to AWS through virtual paths. Users can continue using existing links and add low-cost broadband to achieve an active-active state,allowing Citrix to map connectivity,monitor all conditions (eg, latency, congestion, etc), and innately determine which apps go over which link - in real time.

Citrix SD-WAN optimises bandwidth utilisation between branch offices,enterprise data centres,and public cloud with Transmission Control Protocol (TCP) flow control, data, compression, de-duplication, and protocol optimisation to improve the user experience and reduce bandwidth costs.

Citrix SD-WAN provides strong encryption and an integrated stateful firewall to centrally define security policies for application traffic across on-premise, branch, and AWS environments. If traffic is slowed or in case of an outage, the Citrix SD-WAN dynamically reroutes it within milliseconds to the best link available, helping to establish high availability and performance.

How does Citrix SD-WAN work with Microsoft Azure? +

Citrix partners with Microsoft to provide the Citrix SD-WAN solution as the on-ramp to Azure. The joint solution is designed for the WAN edge of Azure to help enhance user experience, deliver consistent productivity and automate the branch-office network deployments.

As applications continue to migrate to the cloud, and companies continue to operate across geographically dispersed locations, branch offices need access solution that is purpose-built for the internet with enhanced security and improved reliability. Branch offices need to be able to optimise and scale Azure performance to deliver reliable access to resources.

What is Citrix SD-WAN PPPoE? +

Citrix SD-WAN can be used in the simplification of WAN network connections by the replacement of ISP routing devices. One way is by configuring the Citrix SD-WAN appliance to act as a PPPoE client. It authenticates with PPPoE server and obtains dynamic IP address or uses static IP address to establish PPPoE connections.

What is Citrix SD-WAN Overlay routing? +

Citrix SD-WAN provides resilient and robust connectivity between remote sites, data centres and cloud networks. The SD-WAN solution can accomplish this by establishing tunnels between SD-WAN appliances in the network enabling connectivity between sites by applying route tables that overlay the existing underlay network. SD-WAN route tables can fully replace or coexist with existing routing infrastructure.

How to Optimise Office 365 +

Citrix SD-WAN allows you to configure policies to break out Office 365 traffic to the Internet. The office 365 traffic is directed to the nearest Office 365 service endpoint, which exists at the edge of Microsoft Office 365 infrastructure worldwide. Once traffic reaches a front door, it goes over Microsoft's network and reaches the actual destination. This minimises latency as the round trip time from the customer network to the Office 365 endpoint reduces.

How to license Citrix SD-WAN +

There are three Citrix SD-WAN Editions each with a different set or subset of SD-WAN features. The type of license you install determines the platform edition- Standard Edition, WANOP and Premium Edition appliances.

In all cases, licenses can be applied locally (to each appliance), remotely (using Citrix virtual Licensing server) and Centralised Licensing (using Citrix SD-WAN Centre).

What is Citrix Enterprise Edition? +

Citrix SD-WAN Enterprise Edition is the old name for Citrix SD-WAN Premium Edition. This is a physical appliance that combines both the Citrix SD-WAN Standard Edition and Citrix SD-WAN WANOP Editions in a single unit to optimise branch and mobile user experience and to achieve fully resilient applications regardless of network quality.

What is Citrix SD-WAN Premium Edition? +

Citrix SD-WAN Premium Edition is a physical appliance that combines both the Citrix SD-WAN Standard Edition and Citrix SD-WAN WANOP Editions in a single unit, to optimise branch and mobile user experience and to archive fully resilient applications regardless of network quality.

What is Citrix SD-WAN Standard Edition? +

Citrix SD-WAN Standard Edition (WAN virtualisation) creates a secure, reliable and scalable WAN by bonding diverse network links, including MPLS, broadband and wireless and ensures that appliances take the best path to achieve the highest application performance.

Why use Citrix SD-WAN? +

Citrix SD-WAN simplifies branch networking with a secure, reliable and high-performance network, providing users with an improved workspace experience that helps with accessing SaaS applications, virtual desktops and/or traditional data centres.

Citrix SD-WAN offer many benefits to meet the demands of modern business networks, including:

  • Improved application performance and quality of service for remote and branch workers.
  • Reduced WAN costs and scaled capacity through the use of lower-priced broadband and mobile connections.
  • Increased flexibility to prioritise business-critical applications over other network traffic.
  • Improved business continuity and disaster recovery capabilities that maintain connectivity even during multiple network failures.
  • Increased connection security across the WAN application and data migrate to the cloud.
  • Reduces branch networking complexity by consolidating services into an integrated WAN edge appliance and centralising management and policy definition.

What is A Citrix SD-WAN Orchestrator? +

Citrix SD-WAN Orchestrator is a Citrix cloud-hosted, multitenant management SaaS offering, which cloudDNA can leverage to offer managed SD-WAN services to their customers. With Citrix SD-WA's Orchestration Service, you can easily set up high- availability connection to physical and virtual devices both on premise and in the cloud.

Please speak to a cloudDNA technical specialist for more information on Orchestrator and our Managed Services offering.

What is Citrix SD-WAN Zero Touch Deployment Service? +

Citrix SD-WAN Zero Touch Deployment (ZTD) Service is a Citrix operated and managed cloud service which allows discovery of a new appliance in the Citrix SD-WAN network and automates the deployment process for branch offices. The ZTD Cloud Services is accessible from any node in the network, and over Secure Socket Layer (SSL) protocol.

What is Citrix SD-WAN Centre? +

Citrix SD-WAN Centre is a centralised management system that enables you to configure, monitor, and analyse all the Citrix SD-WAN appliances on your SD-WAN on your WAN. It reduces the configuration errors and the time taken to deploy Citrix SD-WAN appliances. It also provides visibility into the SD-WAN network and application performance by allowing you to generate reports and statistics across multiple Citrix SD-WAN appliances.

How does Citrix SD-WAN work? +

Citric SD-WAN Standard Edition (WAN virtualisation) creates a secure, reliable and scalable WAN by bonding diverse network links, including MPLS, broadband and wireless.

Citrix SD-WAN WAOP Edition provides Application and WAN optimisation and bandwidth efficiently through features such flow control, data compression and protocol optimisation.

Citrix SD-WAN Premium Edition is a physical appliance that combines both Citrix SD-WAN Standard and Citrix SD-WAN WANOP Edition in a single unit.

Please speak to a cloudDNA technical specialist for a more detailed explanation.

What is Citrix SD-WAN VPX? +

Citrix SD-WAN VPX is a Citrix SD-WAN Virtual appliance that can be hosted on a Citrix XenServer,VMware,ESX or ESXi, Microsoft Hyper-V, Microsoft Azure, Amazon AWS and Google Cloud virtualisation platforms. A Cirtix SD-WAN VPX appliance supports most of the features of the physical Standard Edition or WANOP Edition appliances.

What is Citrix CloudBridge? +

Citrix CloudBridge is an old product name for what is know now as "Citrix SD-WAN" Citrix SD-WAN is a family of appliances, both physical and virtual that provides wide area network optimisation (WANOP Edition) across public and private cloud networks.

What is Citrix NetScaler SD-WAN? +

Citrix NetScaler SD-WAN is an old product name for what is known now as "Citrix SD-WAN". Citrix SD-WAN is a family of appliances, both physical and virtual that provide wide area network optimisation (WANOP Edition), hybrid WAN virtualisation (Standard Edition) or both physical appliances (Premium Edition) across public and cloud networks.

What is Citrix SD-WAN? +

Citrix SD-WAN is a family of appliances, both physical and virtual that provides wide area network optimisation (WANOP Edition), hybrid WAN virtualisation (Standard Edition), or both in a physical appliance (Premium Edition) across public and private cloud networks.

Citrix SD-WAN solves complex routing with simplicity. It provides optimal network connectivity between enterprise branch offices and their Workspace, whether it's hosted on-premise or in the cloud. This improves user experience and reduces costs.

What is SD-WAN? +

A Software - defined Wide Area Network (SDWAN) is a virtual WAN architecture that allows businesses to securely leverage any number of WAN links (including MPLS, LTE and broadband internet services) to connect users to application in corporate network and Cloud.

As companies utilise a growing number of cloud-based applications, traditional WAN networks are unable to maintain good speeds and optimised connectivity. Scaling multi-protocol label switching (MPLS) solutions to overcome these challenges can be costly and time-consuming. SD-WAN solutions offer the flexibility to control connection efficiently even during periods of high network demand.

What is Citrix SD-WAN WAN Op? How does it work? +

Citrix SD-WAN WANOP Edition provides application and WAN Optimisation usability and bandwidth efficiently, through features such as TCP flow control, data compression de-duplication and protocol optimisation. Citrix SD-WAN can improve the end-user experience as well as provide a reduction in WAN bandwidth expenses. And with video usage on the rise, Citrix SD-WAN can optimise video delivery within Citrix Virtual Apps and Desktops environments as well as for popular websites and internal video content repositories.

What is Citrix SD-WAN Firewall? How does it work? +

As part of the Citrix SD-WAN security one of the features available is the Stateful Firewall.

This feature provides a firewall built into the SD-WAN application. The firewall allows policies between services and zones, and supports Static NAT, Dynamic NAT (PAT) and Dynamic NAT with Port Forwarding. More firewall capabilities include:

Provide security for user traffic within SD-WAN network (Enterprise and Service Providers). Using the same IP address space for multiple customers: NAT capability (Service Providers) and many more - details can be found in product documentation.

Once a firewall policy template has been created it can be used to configure firewall settings for NetScaler SD-WAN Network. Using the Global firewall settings, you can configure the global firewall parameters, these settings are applied to all the sites on the virtual WAN network.

How does Citrix SD-WAN integrate with Zscaler? +

To secure internet traffic and enforce policies companies often use MPLS links to backhaul branch traffic to the corporate data centre. This can consume bandwidth and increase latency to the detriment of application performance and user experience. An alternative is to allow this traffic onto the internet direct from the Branch/Remote site but this can add complexity and cost. The ideal solution to enforce security without adding cost, complexity, or latency is to route all branch internet traffic from the Citrix NetScaler SD-WAN appliance to the Zscaler Cloud Security Platform. The Zscaler Cloud Security Platform acts as a series of security check posts in more than 100 data centres around the remote locations. Zscaler connects users and the internet, inspecting every byte of traffic, even if it is encrypted or compressed.

NetScaler SD-WAN appliances can connect a Zscaler cloud network through GRE tunnels and IPsec tunnels at the customer's site.

What is Citrix SD-WAN QoS? How does it work? +

Quality of Service (QoS):

The network between office locations and the data centre or cloud must transport a multiple of applications and data, including high quality video or real-time voice. Bandwidth sensitive applications stretch the network's capabilities and resources. Citrix SD-WAN provides guaranteed, secure, measurable, and predictable network services. This is achieved by managing the delay, jitter, bandwidth, and packet loss on the network.

The Citrix SD-WAN solution includes, a sophisticated application Quality- of services (Qos) engine that accesses the application traffic and prioritises critical applications. It also understands the requirement for WAN network quality and picks a network path based on the quality characteristics in real time.

What is Citrix SD-WAN datasheet? Where can I find one? +

Citrix SD-WAN datasheet (previously known as Citrix Netscaler SD-WAN Datasheet) is a document that provides technical details of all the Physical and virtual appliances in the Citrix SD-WAN product ranges.

Information about appliances, types,models,bandwidth supported, software features.

For virtual appliances it provides guidance on Hypervisor support, CPU, memory and hard drives requirements. For physical applications it also provides appliance dimension, rack space, power and environmental specifications.

The online datasheet can be found at the following link

https://www.citrix.com/product...

You can download a PDF version of the datasheet from the following link.

https://www.citrix.com/content...


What is Citrix SD-WAN MCN? +

The Master Control Node (MCN) is the central Virtual WAN Appliance that acts as the master controller of the Virtual WAN, and the central administration point for the client nodes. All configuration activities, as well as preparation of the appliances packages and their distribution to the clients, as performed on the MCN. In addition, certain Virtual WAN monitoring and diagnostic information is available only on the MCN.

What is Citrix SD-WAN documentation? +

Citrix SD-WAN documentation is an online resource that provides Citrix SD-WAN administration and developers with detailed information on installation, configuration, maintenance and troubleshooting of the Citrix SD-WAN product set.

This documentation can be found at the following link http://docs.citrix.com/en-us/c...

How do I get a demo of Citrix SD-WAN? +

Please speak to cloudDNA technical specialists who will be happily organise an SD-WAN demo.

What is Citrix SD-WAN virtual path? How does it work? +

A Citrix SD-WAN Virtual path is a logical tunnel between sites that comprises of multiple diverse network links. A single Virtual Path may consist of several WAN links that include WAN links such as NPLS, Satellite, LTE and broadband.

Citrix SD-WAN allows for the creation of "Static Virtual Paths" which are fixed predefined paths created between sites in an organisation, Citrix SD-WAN also supports "Dynamic Virtual Paths between sites as needed and traffic dictates.

Citrix SD-WAN works on a Packet by Packet basis and with each packet that passes through the network Citrix SD-WAN measures the latency, loss, congestion and jitter of every possible path, in each direction. The intelligence is used for all network decisions and is key to the ability of the Citrix SD-WAN to provide always on branches and high application quality.

Is SD-WAN a VPN? +

A Virtual Private Network (VPN) is a secure encrypted tunnel between two devices and evolved from the need for people to access their company network securely from a remote site, VPN's are often restricted to a single WAN link and inflexible.

A Software- defined Wide Area Network (SD-WAN) is a virtual WAN architecture that allows businesses to securely leverage any combination of WAN links (including MPLS, LTE, broadband internet services and VPN tunnels) to connect remote users/sites to corporate infrastructure.

What is the difference between SDN and SD-WAN? +

Software Defined Networking (SDN) provides a method to centrally configure and manage physical and virtual network devices, such as routers, switches and gateways within the internal infrastructure of a company.

A Software-defined Wide Area Network (SD-WAN) is a virtual WAN architecture that allows businesses to leverage any combination of WAN links - including MPLS, LTE and broadband internet services - to securely connect users to applications.

What does SD-WAN stand for? +

SD-WAN stands for Software Defined Wide Area Networking.

A Software-defined Wide Area Network (SD-WAN) is a virtual WAN architecture that allows businesses to leverage any combination of WAN links- including MPLS, LTE and broadband internet services - to securely connect users to appliances.

Is Citrix SD-WAN secure? +

The communication between SD-WAN appliances (SD-WAN virtual path) uses AES-128 data encryption by default which can be increased to AES-256 encryption level.

In addition, Citrix documentation recommends that "Enable Encryption Key Rotation" is set to ensure key regeneration for every Virtual Path with encryption enabled using an Elliptic Curve Diffie-Hellman key exchange as intervals of 10-15 minutes.

It also recommended to maintain security through the deployment lifecycle of Citrix SD-WAN, Citrix documentation lists the following security considerations:

  • Physical Security> Appliance Security> Networking security > Administration and Management

http://docs.citrix.com/en-us/c...

Will Citrix MPLS replace MPLS? +

The benefits of SD-WAN are many, including cost, flexibility, ease of use and deployment and increased security. According to IDC, increasing numbers of service providers are adopting SD-WAN for a variety of reasons. However, private-based networking such as MPLS will always be in demand, particularly in businesses or institutions that have specific connectivity requirements. When cloudDNA are asked the question "SD-WAN or MPLS?" the response will be to look at the needs of the customer. SD-WAN is not necessarily a replacement for MPLS, it can be used in conjunction with other lower cost circuits providing increased bandwidth with flexibility with lower costs.

what does MPLS stand for? +

MPLS stands for Multi-Protocol Label Switching. What is MPLS? It is a mechanism for routing traffic within a telecommunications network, as data travels from one network node to the next. MPLS can provide applications including VPN's (Virtual Private Networks), traffic engineering (TE) and Quality of Service (QoS).

What are the benefits of Citrix SD-WAN? +

Citrix SD-WAN simplifies branch networking with a secure, reliable and high-performance network, providing users with an improved workspace experience that helps with accessing SaaS application, virtual desktops and/or traditional data centres.

Citrix SD-WAN offer many benefits to meet the demands of modern business network including:

  • Improved appliance performance and quality of service for remote and branch workers.
  • Reduced WAN costs and scaled capacity through the use of lower-priced broadband and mobile connections.
  • Increased flexibility to prioritise business-critical appliances over the network traffic.
  • Improved business continuity and disaster recovery capabilities that maintain connectivity even during multiple network failures.
  • Increased connection security across the WAN as applications and data migrate to the cloud.
  • Reduced branch networking complexity by consolidating services into an integrated WAN edge appliance and centralising management and policy definition.


What is Citrix SD-WAN Fail to Wire? +

All Citrix SD-WAN physical appliances have at least one fail to wire network cards installed.

Fail to Wire (FTW) functionality provides a mechanism to connect link layer signal (L2 signals) of two data ports on a single Network Interface Card (NIC) via a relay switch. The relay switch provides a direct hardware path for incoming traffic to exit directly without going through the NIC driver. This is called bypass mode of the FTW card and when enabled allows traffic to flow through the interface even when there is no power, providing fault tolerance to power/ device failure.

What is Citrix SD-WAN HDX Optimisation? +

Citrix SD-WAN WANOP Edition can be used to optimise/ accelerate the XenApp/XenDesktop (ICA/CGP) traffic. This acceleration has three components:

  • Compression - The appliance cooperates with XenApp clients and serves to compress XenApp data streams for interactive data (keyboard/mouse/display/audio) and batch data (printing and file transfers). This interaction takes place transparently and requires no configuration of the appliance. A small amount of configuration, described below is required on older XenApp servers (release 4x).
  • Multistream ICA - In addition to compression, Citrix SD-WAN WANOP appliances support the new Mulistream ICA protocol, in which up to four connections are used for the different ICA priorities, instead of multiplexing all priorities over the same connection. This approach gives interactive tasks greater responsiveness, especially when combined with the appliance's traffic shaping.
  • Traffic Shaping - Citrix SD-WAN WANOP traffic shaper uses the priority bits in the XenApp data protocols to modulate the connection's priority in real time, matching the bandwidth share of each connection to what the connection is transmitting at the moment.

What is Citrix SD-WAN WANOP Edition VPX? +

VPX or Virtual appliance is an appliance that can be hosted on Citrix Xenserver, VMware ESX or ESXi, Microsoft Hyper-V, Microsoft Azure, Amazon AWS and Google Cloud virtualisation platform. A Citrix SD-WAN VPX application supports most of the features of the physical appliances.

This Edition includes WAN Optimisation features only. It supports application acceleration, data reduction and protocol control to optimise application across WAN. Optionally it can include virtual Windows Server to simplify branch infrastructure and mobile PC plug-in capability.

What is Citrix SD-WAN WANOP Edition? +

This Edition includes WAN Optimisation features only. It supports application acceleration, data reduction, and protocol control to optimise applications across the WAN. Optionally, it can include virtual Windows Server to simplify branch infrastructure and mobile PC plug-in capacity.

What is Citrix SD-WAN Plug? +

The Citrix SD-WAN WANOP Client Plug-in is a software based network accelerator that runs on Windows laptops and workstations, providing acceleration anywhere, not just at office/branch office. It connects to a Citrix SD-WAN WANOP appliance at the end of the link.

The principles of WANOP Client Plug-in operation are generally the same as those of a Citrix SD-WAN WANOP appliance providing Application optimisation, WAN optimisation and bandwidth efficiency through features such Flow Control, data compression and protocol optimisation.

What is NetScaler VPX express? +

NetScaler VPX Express is the free full Platinum virtual appliance available to download and use on an annual license basis, it is limited to One Mbps throughput so only suitable for very small test or learning environments.

What is NetScaler content switching? +

NetScaler Content Switching functionality is L4-L7 load balancing this enables a NetScaler Content Switching vserver to make flexible load balancing decisions based on policies that can be triggered by specific client application requests, server responses or session specific variables like source IP and Cookie information.  

What is NetScaler ICA proxy? +

NetScaler and NetScaler Gateway provide full SSL VPN capabilities. NetScaler ICA Proxy mode is a specific mode of operation to support secure remote access to Citrix XenApp and XenDesktop only. All a client endpoint needs is the Citrix Receiver application installed. This mode of operation supports all endpoint types. 

What is NetScaler load balancer? +

Citrix NetScaler is a feature rich load balancer that improves the availability, security, performance, scalabiltiy and efficiency of services. 

What is NetScaler VPX? +

NetScaler VPX is the virtual appliance form factor and can run on any Enterprise Hypervisor or Public / Private cloud (like Microsoft Azure or Amazon Web Services) (10-40G VPX models only run on specific Enterprise Hypervisors, please speak to a cDNA Technical specialist), VPX has full NetScaler Firmware functionality (based on normal licensed options) and can be upgraded as part of the Citrix "pay as you grow" license model, NetScaler VPX are available in 10,25,200 Mbps and 1, 3, 5,8,10,15,25,40 Gbps  throughputs.

What is NetScaler in Citrix? +

Citrix NetScaler  Layer 4 - 7 Application Delivery Controller (ADC) with built in Server Load Balancing, SSL Offload, GSLB, Application Firewall and Content Switching functionality and much more.

What is NetScaler ADC? +

Citrix NetScaler  Layer 4 - 7 Application Delivery Controller (ADC) with built in Server Load Balancing, SSL Offload, GSLB, Application Firewall and Content Switching functionality and much more.

What is NetScaler Gateway? +

NetScaler Gateway can be purchased as a stand alone product or as functionality within a NetScaler ADC to provide full SSLVPN capabilities. NetScaler Gateway can secure remote access to any client server Enterprise, Citrix or Intranet Applications.

What does NetScaler do? +

Citrix NetScaler  Layer 4 - 7 Application Delivery Controller (ADC) with built in Server Load Balancing, SSL Offload, GSLB, Application Firewall and Content Switching functionality and much more.

NetScaler what is AAA? +

NetScaler's Authentication, Authorisation and Auditing (AAA) feature allows the administrator to enhance any normal traffic management virtual server(TM). This allows policies to be configured that redirect incoming users to a AAA vserver to be pre-authenticated, authorised and audited prior to accessing any corporate web applications from the Internet.

NetScaler virtual server +

A NetScaler virtual server (vserver) is an entity created on netscaler to represent the application or service to the client.TCP and SSL connections are normally terminated on the vserver which normally has a routable IP address owned by the appliance.

NetScaler nCore +

NetScaler nCore technology relates to the NetScaler appliances operating system being multi core (cpu cores) aware. It allows the systems packet engines to leverage the high performance multi-core hardware and parallel processing architecture to efficiently scale to meet the requirements of the most demanding web applications. 

NetScaler what is nCore? +

NetScaler nCore technology relates to the NetScaler appliances operating system being multi core (cpu cores) aware. It allows the systems packet engines to leverage the high performance multi-core hardware and parallel processing architecture to efficiently scale to meet the requirements of the most demanding web applications. 

NetScaler what is a MIP? +

A NetScaler Mapped IP (MIP) is an IP Address used by the appliance to communicate with back-end application servers, routers or firewalls on a single subnet.

NetScaler what is subnet IP? +

A NetScaler Subnet IP (SNIP) is an IP Address used by the Appliance to communicate with back-end application servers, routers or firewalls on a single subnet. An appliance can have multiple subnet IP's defined.

NetScaler when to use SNIP? +

A NetScaler Subnet IP (SNIP) is an IP Address used by the Appliance to communicate with back-end application servers, routers or firewalls on a single subnet. An appliance can have multiple subnet IP's defined.

Why choose NetScaler? +

Citrix NetScaler is a best in class, award winning  Layer 4 - 7 Application Delivery Controller (ADC). It's software based approach offers many benefits to organisations and enterprise including 1. Address surges in traffic quickly and cost-effectively with on-demand elasticity (Citrix NetScaler "Pay-as-you-grow" licensing) 2. Reduce TCO within the data centre through ADC consolidation (NetScaler SDX), 3. Enable network application-awareness through unique third-party integrations (NetScaler SDX with Citrix Ready Partner virtual Appliances), 4. Expand hardware seamlessly without downtime (Citrix NetScaler Pay-as-you-grow" licensing), 5. Cloud-enable your data centre for greater agility, elasticity and cost efficiency (NetScaler VPX for Azure, AWS and Softlayer), 6. Drastically increase application performance in real-world environments (with NetScaler Request Switching, Integrated Caching and Compression functionality), 7. Focus on application delivery—not programming (NetScaler Web Application Templates or NetScaler MAS 11.1 for End-to-end network and application management, visibility, and automation) , 8. Combine strong security with high performance (Advanced hardware / software based SSL Offload and PCI compliant Application Firewall functionality) 9. Achieve the visibility to deliver an outstanding user experience (NetScaler MAS 11.1 or Citrix Insight Centre Web)

Why choose NetScaler over F5? +

Citrix NetScaler is a best in class, award winning  Layer 4 - 7 Application Delivery Controller (ADC), its software based approach offers many benefits over f5 including 1. Address surges in traffic quickly and cost-effectively with on-demand elasticity (Citrix NetScaler "Pay-as-you-grow" licensing) 2. Reduce TCO within the data centre through ADC consolidation (NetScaler SDX), 3. Enable network application-awareness through unique third-party integrations (NetScaler SDX with Citrix Ready Partner virtual Appliances), 4. Expand hardware seamlessly without downtime (Citrix NetScaler 2Pay-as-you-grow" licensing), 5. Cloud-enable your data centre for greater agility, elasticity and cost efficiency (NetScaler VPX for Azure, AWS and Softlayer), 6. Drastically increase application performance in real-world environments (with NetScaler Request Switching, Integrated Caching and Compression functionality), 7. Focus on application delivery—not programming (NetScaler Web Application Templates or NetScaler MAS 11.1 for End-to-end network and application management, visibility, and automation) , 8. Combine strong security with high performance (Advanced hardware / software based SSL Offload and PCI compliant Application Firewall functionality) 9. Achieve the visibility to deliver an outstanding user experience (NetScaler MAS 11.1 or Citrix Insight Centre Web).

Why Citrix NetScaler? +

Citrix NetScaler is a best in class, award winning  Layer 4 - 7 Application Delivery Controller (ADC) 

Why NetScaler SDX? +

NetScaler SDX is an advanced Hybrid ADC platform aimed at Enterprise and Service Providers who need high performance hardware and level multi-tenancy and single point of management. SDX uses its built in XenServer Hypervisor to allow multiple virtual NetScaler VPX's and supported 3rd party virtual appliances (virtual Palo Alto Firewall, MacAfee IPS, Bluecat IPAM etc.) to run on the same hardware platform side by side (number / type of virtual appliances is controlled by license). SDX also uses SRIOV drivers to enable the NetScaler VPX's running on it to access to dedicated Network Interface Cards, CPU and SSL chips thus boosting the performance over a generic hypervisor based VPX solution.   

Why NetScaler Gateway? +

Citrix NetScaler Gateway is a secure application, desktop and data access solution that provides administrators granular application and device-level control while enabling user access from anywhere using Smart Access, Smart Control and the XenMobile Micro VPN. It is a virtual appliance running on XenServer, Hyper-V or VMware ESX/ESXi that offers a single point of management and tools to ensure the highest levels of information security across and outside the enterprise. At the same time, it empowers users with a single point of access-optimised for roles, devices, and networks-to the enterprise applications and data they need. This unique combination of capabilities helps maximize the productivity of today's mobile workforce.

Why NetScaler is better than 5? +

Citrix NetScaler is a best in class, award winning  Layer 4 - 7 Application Delivery Controller (ADC), its software based approach offers many benefits over f5 including 1. Address surges in traffic quickly and cost-effectively with on-demand elasticity (Citrix NetScaler 2Pay-as-you-grow" licensing) 2. Reduce TCO within the data centre through ADC consolidation (NetScaler SDX), 3. Enable network application-awareness through unique third-party integrations (NetScaler SDX with Citrix Ready Partner virtual Appliances), 4. Expand hardware seamlessly without downtime (Citrix NetScaler 2Pay-as-you-grow" licensing), 5. Cloud-enable your data centre for greater agility, elasticity and cost efficiency (NetScaler VPX for Azure, AWS and Softlayer), 6. Drastically increase application performance in real-world environments (with NetScaler Request Switching, Integrated Caching and Compression functionality), 7. Focus on application delivery—not programming (NetScaler Web Application Templates or NetScaler MAS 11.1 for End-to-end network and application management, visibility, and automation) , 8. Combine strong security with high performance (Advanced hardware / software based SSL Offload and PCI compliant Application Firewall functionality) 9. Achieve the visibility to deliver an outstanding user experience (NetScaler MAS 11.1 or Citrix Insight Centre Web)

Why NetScaler for XenApp? +

Citrix NetScaler and NetScaler Gateway with nFactor, Smart Control and Smart Access Provide secure access and delivery of all Citrix applications and virtualised desktops. In addition, NetScaler Global Server Load Balancing (GSLB) can be used to add redundant remote access data centre sites to support globally distributed DR scenarios. NetScaler provides Specific set-up wizards for common Citrix XenApp / Desktop / StoreFront deployments and the deepest level of insight into HDX traffic which allows Citrix Administrators a single point of end user experience monitoring and reporting for all remote users into the corporate Citrix Environment.  

Why NetScaler beats F5? +

Citrix NetScaler is a best in class, award winning  Layer 4 - 7 Application Delivery Controller (ADC), its software based approach offers many benefits over f5 including 1. Address surges in traffic quickly and cost-effectively with on-demand elasticity (Citrix NetScaler 2Pay-as-you-grow" licensing) 2. Reduce TCO within the data centre through ADC consolidation (NetScaler SDX), 3. Enable network application-awareness through unique third-party integrations (NetScaler SDX with Citrix Ready Partner virtual Appliances), 4. Expand hardware seamlessly without downtime (Citrix NetScaler 2Pay-as-you-grow" licensing), 5. Cloud-enable your data centre for greater agility, elasticity and cost efficiency (NetScaler VPX for Azure, AWS and Softlayer), 6. Drastically increase application performance in real-world environments (with NetScaler Request Switching, Integrated Caching and Compression functionality), 7. Focus on application delivery—not programming (NetScaler Web Application Templates or NetScaler MAS 11.1 for End-to-end network and application management, visibility, and automation) , 8. Combine strong security with high performance (Advanced hardware / software based SSL Offload and PCI compliant Application Firewall functionality) 9. Achieve the visibility to deliver an outstanding user experience (NetScaler MAS 11.1 or Citrix Insight Centre Web)

Where are NetScaler backups stored? +

NetScaler automatically saves the ns.conf configuration file 5 steps back in /flash/nsconfig. Additionally if a manual system back-up is performed using the #create system backup -level basic|full, the resulting zip file is stored in the /var/ns_sys_backup directory .  

Where are NetScaler logs? +

NetScaler system logs are stored in /var/nslog

Why use NetScaler with XenApp 7.x? +

Citrix NetScaler and NetScaler Gateway with nFactor, Smart Control and Smart Access Provide secure access and delivery of all Citrix  XenApp 7.5 applications and virtualised desktops as well as data, additionally NetScaler Global Server Load Balancing (GSLB) can be used to add redundant remote access data centre sites to support globally distributed DR scenarios, as NetScaler is Citrix integrated product it also provides Specific set-up wizards for common Citrix XenApp / Desktop / StoreFront deployments and the deepest level of  insight into HDX traffic out of the box (AppFlow feature in Enterprise Edition) so when combined with Citrix HDX Insight allows Citrix Administrators a single point of end user experience monitoring and reporting for all remote users into the corporate Citrix Environment.

Why use NetScaler with Sharefile? +

Citrix NetScaler ADC can be used to provide Load Balanced access and authentication to Sharefile's StorageZones Controller up to the current 4.0 version. Assuming a minimum version 10.1 build 120.1316.e or above, this then provides a StorageZone Controller Wizard to complete the set-up configuration.

Why use NetScaler with SharePoint 2013? +

Citrix NetScaler ADC can be configured to support Microsoft SharePoint 2013. Using AppExpert Templates, a complete configuration can be set-up and customised to suit your requirements. Features specifically used in this configuration to enhance the performance and security of the SharePoint 2013 deployment include Integrated Caching, Compression, Load Balancing, Responder, Rewrite, Content Switching, SSL Offload, AAA-TM and Application Firewall (NetScaler Platinum recommended).

NetScaler A record +

As NetScaler can operate as full authorative DNS name server it can be configured with all the common DNS records including 'A' records at the command line for example type  #Add dns addrec www.clouddna.com 123.456.789.111 -ttl 10

NetScaler a+ rating +

Organisations that use Citrix NetScaler to protect and load balance their web application or service can utilise the NetScaler SSL Offload functionality to achieve the Qualys SSLlabs.com A+, further to that Citrix NetScaler 11.1 improves SSL management for multiple web services and sites with its advanced SSL Profile functionality.

Upgrading a NetScaler HA pair +

To upgrade a NetScaler HA pair follow the same process as for a standalone appliance, but update the "Secondary" appliance first and reboot, then after checking the upgrade has been a success upgrade the "Primary" appliance. Need help? Talk to one of our NetScaler specialists.

Backup a NetScaler +

To backup a NetScaler, first use the "save ns config" command, then you can use the #create system backup <-level basic | full>  to create the zipped backup file in /var/ns_sys_backup/ directory. Basic backs up all configuration files except SSL and License. Full backup includes these additional files. Due to space limitations NetScaler will only store 50 backup files, but these can be removed using the rm command. Need help? Talk to one of our NetScaler specialists.

Configuring a NetScaler +

Initial configuration of your NetScaler appliance can be achieved by using a laptop and network cable into any available interface and either Browser + GUI or SSH client eg PuTTY and Command line. Connect to the default NSIP management IP 192.168.100.1  via your browser or ssh client (don't forget to ensure your laptop is in the correct subnet 192.168.100.xyz) where you will see the login screen. Use nsroot as the username and nsroot as the password after initial GUI logon and you will see the "First-time use" wizard (you will need your new NetScaler network details and license key as a bare minimum). If you use the CLI then type the #config ns command and input your network details. Need help? Talk to one of our technical team.

Upgrading a NetScaler +

Upgrading a NetScaler Appliance can sometimes lead to configuration loss so make sure you back-up the running configuration first (nsconfig directory or ns.conf file depending in the situation). Full instructions on the upgrade steps can be found in the Citrix eDocs for the build you are upgrading to. Need help? Talk to one of our technical specialists.

How a NetScaler works +

In a basic load balancing setup, clients send their requests to the IP address of a virtual server configured on the NetScaler appliance. The virtual server distributes the requests to the load-balanced application servers according to a preset pattern, called the load balancing algorithm. NetScaler monitors the health of all available services to ensure it connects users to the best possible resource at any given time. In addition, NetScaler has a wide range of features to further enhance the user experience and reduce operating costs.

Rebooting a NetScaler +

To reboot a NetScaler appliance from the command line use #reboot you can use the -warm argument to perform a warm reboot. Need help? Speak to one of our technical team.

Downgrading a NetScaler +

Downgrading a NetScaler Appliance can sometimes lead to configuration loss so make sure you back-up the running configuration first (nsconfig directory or ns.conf file depending in the situation). Full instructions on the downgrade steps can be found in the Citrix eDocs for the build you are downgrading from. In summary, back-up the ns.conf, rename ns.conf.NS<currentbuildnumber> to ns.conf this will be the pre upgrade configuration from the previous upgrade. If you have the build you want to roll back to already uploaded and unzipped in /var/nsinstall/ then  re-run ./installns script in the old build folder to re-install the old firmware and reboot. Need help? Give us a call!

Create a NetScaler service +

After the initial management network configuration (NSIP, Subnet mask, Default route), the remaining configuration of a NetScaler appliance can be done via the Browser and GUI (http://NSIP) or Command line via an SSH client like PuTTY (a browser that supports html5 like Firefox will help). Once you have logged on with the nsroot username and password, you can enable Load Balancing, add servers, services and vserver under the Traffic Management > Load Balancing > section in the GUI or add a service from the command line.

Licensing a NetScaler +

You will recieive and email from Citrix once your order has shipped with instructions on how to allocate and apply your license. Alternatively, you can visit citrix.com, see knowledge base article CTX121062, or speak to the cloudDNA team. 

Securing a NetScaler +

Citrix NetScaler deployed in the DMZ can be secured and hardened. There are multiple mechanisms around systems management, authentication, monitoring and logging that can be utilised depending on your specific security requirements. The systems can utilise independent management networks to isolate the admin traffic.Role based access can also be configured and combined with external authentication services like Microsoft Active Directory or TACACS+. Additionally, if a single management pane of glass is required for multiple NetScaler Appliances (VPX, MPX, SDX , CPX as well as NetScaler SD-WAN) then NetScaler MAS can be deployed to centrally managed the Citrix networking estate.

What does a NetScaler do? +

Citrix NetScaler works as a very fast bidirectional proxy application delivery controller to provide secure, redundant, optimised web-application access, SSL Offload, GSLB, Application Firewall and SSL VPN. It operates at Layer 4-7 by terminating inbound client TCP connections on a virtual IP and establishing persistent back-end server connections via its own subnet IP to request content on behalf of the client using request switching and pipelining techniques. As an intermediary buffer between the client and server, the NetScaler can then inspect requests to prevent things like DDoS or Application attacks and provide web content and object Caching and Compression.

What is a NetScaler load balancer? +

Citrix NetScaler works as a very fast bidirectional proxy application delivery controller to provide secure, redundant, optimised web-application access, SSL Offload, GSLB, Application Firewall and SSL VPN. It operates at Layer 4-7 by terminating inbound client TCP connections on a virtual IP and establishing persistent back-end server connections via its own subnet IP to request content on behalf of the client using request switching and pipelining techniques. As an intermediary buffer between the client and server, the NetScaler can then inspect requests to prevent things like DDoS or Application attacks and provide web content and object Caching and Compression.

How does a NetScaler work? +

Citrix NetScaler works as a very fast bidirectional proxy application delivery controller to provide secure, redundant, optimised web-application access, SSL Offload, GSLB, Application Firewall and SSL VPN. It operates at Layer 4-7 by terminating inbound client TCP connections on a virtual IP and establishing persistent back-end server connections via its own subnet IP to request content on behalf of the client using request switching and pipelining techniques. As an intermediary buffer between the client and server, the NetScaler can then inspect requests to prevent things like DDoS or Application attacks and provide web content and object Caching and Compression.