Methods and systems for providing remote access to a computing environment provided by a virtual machine

• US 8,117,314 B2
• Filed: 01/18/2007
• Issued: 02/14/2012
• Est. Priority Date: 01/24/2006
• Status: Active Grant

• Current Assignee: Citrix Systems, Inc. (Cloud Software Group)
• Original Assignee: Citrix Systems, Inc. (Cloud Software Group)
• Inventors: Croft, Richard Jason, Low, Anthony Edward, Mazzaferri, Richard James, Robinson, David Neil, Pedersen, Bradley J.
• Primary Examiner(s): Moore, Ian N
• Assistant Examiner(s): Alexander, Jenee
• Application Number:
  US11/624,395
• Publication Number:
  US 20070180449A1
• Time in Patent Office: 1,853 Days
• Field of Search: 718/1, 718/100, 709/203, 709217-219, 709/227
• US Class Current: 709/227
• CPC Class Codes: G06F 16/748 Hypervideo linking data to content, e.g. by linking an URL to a video object in the context of video distribution systems H04N21/858
• CPC Class Codes: G06F 21/53 by executing in a restricted environment, e.g. sandbox or secure virtual machine
• CPC Class Codes: G06F 21/6218 to a system of files or objects, e.g. local or distributed file system or database
• CPC Class Codes: G06F 21/629 to features or functions of an application
• CPC Class Codes: G06F 2209/541 Client-server
• CPC Class Codes: G06F 2221/2149 Restricted operating environment
• CPC Class Codes: G06F 3/1415 with means for detecting differences between the image stored in the host and the images displayed on the displays
• CPC Class Codes: G06F 3/1438 using more than one graphics controller
• CPC Class Codes: G06F 3/1462 with means for detecting differences between the image stored in the host and the images displayed on the remote displays
• CPC Class Codes: G06F 9/45533 Hypervisors; Virtual machine monitors
• CPC Class Codes: G06F 9/485 Task life-cycle, e.g. stopping, restarting, resuming execution G06F9/4881 takes precedence
• CPC Class Codes: G06F 9/5027 the resource being a machine, e.g. CPUs, Servers, Terminals
• CPC Class Codes: G06F 9/5055 considering software capabilities, i.e. software resources associated or available to the machine
• CPC Class Codes: G06F 9/5077 Logical partitioning of resources; Management or configuration of virtualized resources specific details on emulation or internal functioning of virtual machines G06F9/455
• CPC Class Codes: G06F 9/5088 involving task migration
• CPC Class Codes: G06F 9/54 Interprogram communication
• CPC Class Codes: G09G 2354/00 Aspects of interface with display user
• CPC Class Codes: G09G 2370/16 Use of wireless transmission of display information
• CPC Class Codes: G09G 2370/22 Detection of presence or absence of input display information or of connection or disconnection of a corresponding information source
• CPC Class Codes: G09G 5/006 Details of the interface to the display terminal specific for a display terminal using a CRT G09G1/167; using a flat panel G09G3/2096; circuits for interfacing with colour displays G09G5/04
• CPC Class Codes: G09G 5/14 : Display of multiple viewports
• CPC Class Codes: H04L 63/0227 : Filtering policies mail message filtering H04L51/212
• CPC Class Codes: H04L 63/0428 : wherein the data content is protected, e.g. by encrypting or encapsulating the payload
• CPC Class Codes: H04L 63/06 : for supporting key management in a packet data network cryptographic mechanisms or cryptographic arrangements for key management H04L9/08
• CPC Class Codes: H04L 63/08 : for authentication of entities cryptographic mechanisms or cryptographic arrangements for entity authentication H04L9/32
• CPC Class Codes: H04L 63/10 : for controlling access to devices or network resources
• CPC Class Codes: H04L 63/102 : Entity profiles
• CPC Class Codes: H04L 63/105 : Multiple levels of security
• CPC Class Codes: H04L 67/02 : based on web technology, e.g. hypertext transfer protocol [HTTP]
• CPC Class Codes: H04L 67/08 : specially adapted for terminal emulation, e.g. Telnet
• CPC Class Codes: H04L 67/14 : Session management for real-time applications in data packet communications networks H04L65/1066
• CPC Class Codes: H04L 67/141 : Setup of application sessions admission control or resource allocation in data switching networks H04L47/70
• CPC Class Codes: H04L 67/303 : Terminal profiles
• CPC Class Codes: H04L 67/51 : Discovery or management thereof, e.g. service location protocol [SLP] or web services
• CPC Class Codes: H04L 67/56 : Provisioning of proxy services store-and-forward switching systems in data switching networks H04L12/54
• CPC Class Codes: H04L 67/563 : Data redirection of data network streams
• CPC Class Codes: H04L 67/564 : Enhancement of application control based on intercepted application data
• CPC Class Codes: H04L 67/568 : Storing data temporarily at an intermediate stage, e.g. caching
• CPC Class Codes: H04L 67/59 : Providing operational support to end devices by off-loading in the network or by emulation, e.g. when they are unavailable
• CPC Class Codes: H04L 69/24 : Negotiation of communication capabilities

Abstract

A method for providing remote access to a computer environment provided by a virtual machine includes the step of receiving authentication information associated with a user of a client machine. Based on the received authentication information, a computer environment provided by a virtualized operating system and already associated with the user is identified. A connection is established between the client machine and the identified computing environment.

Claims

1. A method for providing remote access to a desktop computing environment provided by a virtual machine, the method comprising:

(a) receiving, by a broker machine, authentication information associated with a user of a first client machine;

(b) identifying, by the broker machine, based on the received authentication information, a desktop computing environment already associated with the user, the desktop computing environment

i) being provided by a virtual machine selected by the broker machine and

ii) executing in a first operating system provided by the virtual machine and launched by a hypervisor, the virtual machine executing in an execution machine selected by the broker machine, and

the execution machine executing a the hypervisor

i) providing access to hardware resources required by the virtual machine and

ii) executing in a terminal services session provided by a second operating system, which is provided by the execution machine; and

(c) establishing, by the broker machine, a connection between the first client machine and the desktop computing environment.

2. The method of claim 1, wherein step (a) further comprises gathering, by a collection agent, information about the first client machine.

3. The method of claim 2, wherein step (b) comprises identifying, based on the received authentication information and the gathered client machine information, a desktop computing environment already associated with the user.

4. The method of claim 2, wherein step (c) comprises establishing a connection between the first client machine and the desktop computing environment subject to a rule applied to the received authentication information and the gathered client machine information.

5. The method of claim 1, wherein step (b) comprises identifying, based on the received authentication information, a first desktop computing environment provided by a first virtual machine and a second desktop computing environment provided by a second virtual machine, the first and second desktop computing environments already associated with the user.

6. The method of claim 1, wherein step (b) comprises identifying, based on the received authentication information, a first desktop computing environment provided by a first virtual machine executing on a first execution machine and a second desktop computing environment provided by a second virtual machine executing on a second execution machine, the first and second desktop computing environments already associated with the user.

7. The method of claim 1, wherein step (c) comprises establishing a connection between the first client machine and the desktop computing environment subject to a rule.

8. The method of claim 1 further comprising:

receiving a request to disconnect the first client machine from the desktop computing environment; and

terminating the connection between the first client machine and the desktop computing environment.

9. The method of claim 8 further comprising updating a data record associated with the desktop computing environment to indicate that the first client machine is disconnected.

10. The method of claim 9 further comprising the step of continuing execution of the desktop computing environment.

11. The method of claim 1 further comprising authenticating the user in response to the received authentication information.

12. The method of claim 1, wherein step (b) comprises consulting stored data associated with at least one desktop computing environment to identify, based on the received authentication information, the desktop computing environment already associated with the user.

13. The method of claim 1 further comprising the steps of:

(d) receiving, by the broker machine, authentication information associated with the user, the user using a second client machine;

(e) identifying, by the broker machine, based on the received authentication information, the desktop computing environment already associated with the user; and

(f) establishing, by the broker machine, a connection between the second client machine and the desktop computing environment.

14. The method of claim 13 further comprising terminating the connection between the first client machine and the desktop computing environment.

15. The method of claim 1, wherein step (c) further comprises establishing a connection between the first client machine and the desktop computing environment, via the terminal services session.

16. The method of claim 1, wherein step (c) further comprises establishing a presentation-layer protocol connection between the first client machine and the desktop computing environment.

17. The method of claim 1, wherein step (c) further comprises establishing an X11 connection between the first client system and the desktop computing environment.

18. The method of claim 1, wherein step (c) further comprises establishing an ICA connection between the first client system and the desktop computing environment.

19. The method of claim 1, wherein step (c) further comprises establishing an RDP connection between the first client system and the desktop computing environment.

20. A method for providing remote access to a plurality of application sessions, the method comprising:

(a) receiving, at a first client machine, a selection of a single user interface element by a user of the first client machine;

(b) transmitting, in response to the user interface element selection, authentication information associated with the user;

(c) identifying, by the broker machine, based on the transmitted authentication information, a desktop computing environment already associated with the user, the desktop computing environment

i) being provided by a virtual machine selected by the broker machine and

ii) executing in a first operating system provided by the virtual machine and launched by a hypervisor, the virtual machine executing in an execution machine selected by the broker machine, and

the hypervisor

i) providing access to hardware resources required by the virtual machine and

ii) executing in a terminal services session provided by a second operating system, which is provided by the execution machine; and

(d) establishing, by the broker machine, a connection between the first client machine and the desktop computing environment.

21. The method of claim 20 further comprising gathering, by a collection agent in response to the received information, information about the first client machine.

22. The method of claim 21, wherein step (c) comprises identifying, based on the received authentication information and gathered client machine information, the desktop computing environment already associated with the user.

23. The method of claim 21, wherein step (d) comprises establishing a connection between the first client machine and the desktop computing environment subject to a rule applied to the received authentication information and the gathered client machine information.

24. The method of claim 20, wherein step (c) comprises identifying, based on the received authentication information,

i) a first desktop computing environment executing in the first operating system provided by a first virtual machine, and

ii) a second desktop computing environment executing in a third operating system provided by a second virtual machine, the first and second desktop computing environments already associated with the user.

25. The method of claim 20, wherein step (c) comprises identifying, based on the received authentication information, i) a first desktop computing environment executing in the first operating system provided by a first virtual machine, the first virtual machine executing on a first execution machine, and

ii) a second desktop computing environment executing in a third operating system provided by a second virtual machine, the second virtual machine executing on a second execution machine, the first and second desktop computing environments already associated with the user.

26. The method of claim 20, wherein step (d) comprises establishing a connection between the first client machine and the desktop computing environment subject to a rule.

27. The method of claim 20 further comprising:

receiving a request to disconnect the first client machine from the desktop computing environment; and

terminating the connection between the first client machine and the desktop computing environment.

28. The method of claim 27 further comprising updating a data record associated with the desktop computing environment to indicate that the first client machine is disconnected.

29. The method of claim 28 further comprising the step of continuing execution of the desktop computing environment.

30. The method of claim 20 further comprising authenticating the user in response to the received authentication information.

31. The method of claim 20, wherein step (c) comprises consulting stored data associated with at least one desktop computing environment to identify, based on the received authentication information, the desktop computing environment already associated with the user.

32. The method of claim 20 further comprising the steps of:

(e) receiving authentication information associated with the user, the user using a second client machine;

(f) identifying, based on the received authentication information, the desktop computing environment already associated with the user; and

(g) establishing a connection between the second client machine and the desktop computing environment.

33. The method of claim 32 further comprising terminating the connection between the first client machine and the desktop computing environment.

34. The method of claim 20 wherein step (d) further comprises establishing a connection between the first client machine and the desktop computing environment, via the terminal services session.

35. The method of claim 20, wherein step (d) further comprises establishing a presentation-layer protocol connection between the first client machine and the desktop computing environment.

36. The method of claim 20, wherein step (d) further comprises establishing an X11 connection between the first client system and the desktop computing environment.

37. The method of claim 20, wherein step (d) further comprises establishing an ICA connection between the first client system and the desktop computing environment.

38. The method of claim 20, wherein step (d) further comprises establishing an RDP connection between the first client system and the desktop computing environment.

39. A broker machine for providing remote access to a desktop computing environment, the broker machine comprising:

a network module executing on a processor receiving authentication information associated with a user operating a client machine;

a data store containing an identifier of a desktop computing environment associated with the user,

the desktop computing environment

i) being provided by a virtual machine selected by the broker machine and

ii) executing in a first operating system provided by the virtual machine and launched by a hypervisor,

the virtual machine executing in an execution machine selected by the broker machine, and

the hypervisor

i) providing access to hardware resources required by the virtual machine and

ii) executing in a terminal services session provided by a second operating system, which is provided by the execution machine;

a broker process connecting the client machine to the desktop computing environment enumerated in the data store in response to the received information.

40. The broker machine of claim 39, wherein the data store contains a first identifier of a first desktop computing environment associated with the user and a second identifier of a second desktop computing environment associated with the user.

41. The broker machine of claim 40, wherein the first desktop computing environment executes on a first execution machine and the second desktop computing environment executes on a second execution machine.

42. The broker machine of claim 39, wherein the broker process connects the client to the desktop computing environment subject to a rule.

43. The broker machine of claim 39, wherein the broker process disconnects the client machine from the desktop computing environment in response to a received disconnect signal.

44. The broker machine of claim 43, wherein the broker process updates a data record associated with the desktop computing environment to indicate the client machine is disconnected from the desktop computing environment.

45. The broker machine of claim 39 further comprising an authentication module for authenticating the user in response to the received authentication information.

46. The broker machine of claim 39 further comprising:

a collection agent gathering information about the client machine; and

a policy engine receiving the gathered information and granting one of a plurality of levels of access responsive to application of a policy to the received information,

the broker process connecting the client machine to the desktop computing environment enumerated in the data store responsive to the granted access level.

47. The broker machine of claim 46 wherein the policy engine further comprises a database storing configurable policies.

48. The broker machine of claim 46, wherein the policy engine transmits instructions to the collection agent determining the type of information the collection agent gathers.

49. The broker machine of claim 46, wherein the policy engine further comprises a logon agent.

50. The broker machine of claim 46, wherein the policy engine further comprises a plurality of logon agents.

51. The broker machine of claim 50, wherein the logon agent receives the gathered information from the collection agent.

52. The broker machine of claim 50, wherein the logon agent identifies for the policy engine authentication information received from the collection agent.

53. The broker machine of claim 52, wherein at least one of the plurality of logon agents resides on each network domain from which the client machine may transmit a resource request.

54. The broker machine of claim 53, wherein the client machine transmits the resource request to a particular logon agent.

55. The broker machine of claim 54, where the logon agent identifies for the policy engine the network domain from which the client machine transmits the resource request.

56. The broker machine of claim 46, wherein the collection agent executes on the client machine.

57. The broker machine of claim 46, wherein the policy engine transmits the collection agent to the client machine.

58. The broker machine of claim 46, wherein the collection agent comprises at least one script.

59. The broker machine of claim 46, wherein the collection agent comprises bytecode.

60. The broker machine of claim 46, wherein the collection agent gathers the information by running at least one script on the client machine.

61. The broker machine of claim 39 wherein the broker process connects the client machine to the desktop computing environment, via the terminal services session.

62. The broker machine of claim 39, wherein the broker process establishes a presentation-layer protocol connection between the client machine and the desktop computing environment.

63. The broker machine of claim 39, wherein the broker process establishes an XII connection between the client system and the desktop computing environment.

64. The broker machine of claim 39, wherein the broker process establishes an ICA connection between the client system and the desktop computing environment.

65. The broker machine of claim 39, wherein the broker process establishes an RDP connection between the client system and the desktop computing environment.