XenApp Server: The Components and Infrastructure in a Typical Deployment

Organizations choose XenApp (now known as Citrix Virtual Apps) as it allows remote applications to be managed from and hosted on more secure datacenters. XenApp Server delivers virtual applications by extending Microsoft’s Remote Desktop Services protocol, particularly its Remote Desktop Session Host (RDSH) component. Thus, a supported Windows Server OS is required for hosting a XenApp Server. XenApp is also more cost-efficient because it does not require frequent hardware and OS upgrades.

What Is XenApp Used For?

Citrix XenApp allows virtualization of Windows-based applications for remote access from anywhere using any kind of device, regardless of OS. XenApp utilizes server-based computing (SBC) because it requires users to connect to applications hosted on a central server residing inside a datacenter, cloud-based or otherwise.

One advantage of XenApp is that users don’t have to worry about hardware compatibility. Authorized users can connect to the XenApp server and run the applications they need using their preferred devices.

While multiple users can simultaneously access virtualized, server-based applications, only authorized IT staff can virtualize applications. Thus, XenApp and similar solutions are better suited for fixed and routine work, as they do not offer users the ability to install applications on the server or their own devices.

How Is Citrix XenApp Server Typically Deployed?

XenApp runs on the proprietary FlexCast Management Architecture (FMA), a service-oriented architecture that allows for interoperability among various Citrix products.

The key elements in a typical XenApp server deployment, or site, include:

Aside from the above-required components, a typical XenApp Server deployment may also require one or more optional components, including Provisioning Services, NetScaler Gateway (Citrix Gateway), and NetScaler SD-WAN (Citrix SD-WAN).

As seen from the list above, the typical XenApp Server deployment can be a complex task.

How Do Citrix XenApp Server and Other Components Handle User Connections?

In a typical Citrix XenApp Server deployment, user connections are handled in the following manner:

How Can I Diagnose Performance Issues with a Monitoring Solution?

You may run into performance issues when using XenApp Server. For example, slow-running XenApp Server-based applications brought about by users connecting via slow internet connections are a common complaint. Another problem may arise with users on older devices that may not support your deployed applications.

Although not guaranteed, a monitoring solution might help resolve performance issues in your XenApp Server deployment. Choose one that can review the channels through which your connections are running, the networks of your users, and the prevailing latency between your user devices and servers.

Reduce the Costs of Delivering Virtual Applications with Parallels RAS

Parallels® Remote Application Server (RAS) is an all-in-one solution that helps streamline application delivery across your network, enabling organizations to reduce IT complexity while increasing user productivity.

Parallels RAS manages and scales your IT infrastructures with RDSH, virtual desktop infrastructure (VDI) and Azure Virtual Desktop using a single pane of glass. It simplifies complex administrative tasks using smart wizards and automation tools that provide administrators with the most efficient path to application delivery.

Parallels RAS reduces your hardware footprint compared to other virtualization solutions, such as Citrix Virtual Apps and Desktops. When your organization needs to scale up, your per-user hardware expenses are lowered even more.

Check how you can use Parallels RAS to simplify your application delivery by downloading the trial.