Citrix Systems, Inc.

Donovan Ross Hackett

Richard James Mazzaferri

Paul Adam Ryman

Lee Laborczfalvi

Richard Jason Croft

Martin Duursma

Michael Wookey

Nicholas Alexander Bissett

Andrew Borzycki

Anthony Edward Low

Jeffrey Dale Muir

Environments are disclosed in which a server executes an application on behalf of a client device and, in particular, to providing responsive scrolling in server-hosted applications. In one example, a remote computing device may be a mobile (or stationary) computing device with (or without) a touch screen input surface. Some or all of the client-server communication between a client-side scrollable UI control module of the remote computing device and a server-side scrollable UI control module of the server device may occur in an asynchronous manner.

Responsive scroller controls in server-hosted applications

One or more techniques are provided for causing a location of a screen image associated with a resource to be adjusted on a display device. The adjustment may be based at least in part on determining that a control element receives focus. The resource may be associated with an application, such as an email application that may be hosted remotely from a client device. Access to one or more resources may be controlled or mediated. Access rights may be based at least in part on a determination of a geographic location of a client device. When the client device is located in a safe area, the client device may be provided access to the resource. When the client device is not located in a safe area, the client device might not be provided access to the resource or might not be provided full access to the resource.

Mediating resource access based on a physical location of a mobile device

The present solution reduces the attack surface of a server by selectively opening a server port for listening when a client has been authenticated/authorized via another machine or process, and directed to connect to the server in question. When not selectively listening on a port, the server does not listen or open ports for connections or otherwise minimizes the number of open ports. By selectively listening for connections, the server reduces the opportunity for hackers to attack the server process, and improves the security of the server. The ability to selectively listen on a port at specific times may be combined with additional meta information&#x2014;like ticketing and prior authentication information to help further secure the server. The meta information may identify and ensure that only the correct remote endpoint is allowed to connect via the port. Instead of first listening for connections and then authenticate and authorize the received connection as with typical servers, the present solution first authenticates/authorizes a connection via another machine or process, then listens for an expected and authorized connection.

Systems and methods for enhancing security by selectively opening a listening port when an incoming connection is expected

A method for providing access to a computing environment includes the step of receiving, by a broker machine, a request from a client machine for access to a computing environment, the request including an identification of a user of the client machine. One of a plurality of virtual machines is identified by a session management component, the identified virtual machine providing the requested computing environment. One of a plurality of execution machines is identified, the identified execution machine providing a terminal services session in which a hypervisor executes to provide access to hardware resources required by the identified virtual machine. The hypervisor launches the identified virtual machine. A connection is established between the client machine and the identified virtual machine, via the terminal services session.

Methods and systems for providing access to a computing environment provided by a virtual machine executing in a hypervisor executing in a terminal services session

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Marsfield, Australia

Donovan Ross Hackett