Abstract: State data can be separated from an existing software stack stored in one or more computer storage units in a computer system. The existing software stack can include operating system software and application software, and the state data can represent one or more states of the existing software stack. An image can be stored in one or more computer storage units in the computer system, and the stored image can form an updated software stack including operating system and application software. In addition, the updated software stack can be configured using the state data.

Abstract: In a distributed computer system, data to be communicated is assigned to one of a plurality of virtual queues. The plurality of virtual queues includes a first representative virtual queue associated with a first fault group and a second representative virtual queue associated with a second fault group. The data to be communicated is assigned to one of the plurality of virtual queues prior to transmission based on fault group information associated with the data.

Abstract: State data can be separated from an existing software stack stored in one or more computer storage units in a computer system. The existing software stack can include operating system software and application software, and the state data can represent one or more states of the existing software stack. An image can be stored in one or more computer storage units in the computer system, and the stored image can form an updated software stack including operating system and application software. In addition, the updated software stack can be configured using the state data.

Abstract: Multi-session connection across a trust boundary is described. In an embodiment, a trust boundary can be implemented to restrict access to resources in a secure region from an unsecure region. A connection can be established that is configured as a client-server connection from the secure region to the unsecure region across the trust boundary. A communication engine in the secure region can then control and maintain the established connection as a two-way simultaneous communication link to the unsecure region across the trust boundary such that session messages can be initiated for communication via the two-way simultaneous communication link from either of the secure region or the unsecure region.

Abstract: In a management system, a management server authorizes users to access computing devices based on class space and instance space. The management server further determines whether users are authorized to use particular computing devices and/or applications provided by the particular computing devices. Alerts may also be provided to the users by the management server.

Abstract: In a distributed computer system, data to be communicated is assigned to one of a plurality of virtual queues. The plurality of virtual queues includes a first representative virtual queue associated with a first fault group and a second representative virtual queue associated with a second fault group. The data to be communicated is assigned to one of the plurality of virtual queues prior to transmission based on fault group information associated with the data.

Abstract: Multi-session connection across a trust boundary is described. In an embodiment, a trust boundary can be implemented to restrict access to resources in a secure region from an unsecure region. A connection can be established that is configured as a client-server connection from the secure region to the unsecure region across the trust boundary. A communication engine in the secure region can then control and maintain the established connection as a two-way simultaneous communication link to the unsecure region across the trust boundary such that session messages can be initiated for communication via the two-way simultaneous communication link from either of the secure region or the unsecure region.