Abstract: A method for file synchronization during an operating system boot sequence between a client and a server. Upon initiation of the boot sequence, a mini file system driver is downloaded to the client. The mini file system driver is used to download the full operating system kernel. During a first phase of the boot sequence, file data and information for managing the file data generated by a first file system driver is cached. Upon initialization of the operating system, i.e. during a subsequent phase of the boot sequence, a second file system inherits the file data and information from the first file system driver. The second file system unloads the first file system driver and updates the data files.

Abstract: Persistent network connections created by the inventive mechanism survive logoff and persist across logon. A persistent connection is created when a network connection is established (or when an existing connection is modified) using a simple command line or GUI interface. Information supplied via the interface enables the mechanism to establish, dynamically, a different security context for each given persistent connection, and this security context is “flexible” in that it may differ from the user's logon id and password. If a user were currently authenticated for a given persistent network connection before a network failure, the user, upon connect, is allowed access to the network connection without requiring further authentication.

Abstract: A method and apparatus for application management in a multiuser networked data processing environment are implemented. An application definition is generated for each application available to users on the network. Each application definition includes a plurality of application parameters, the values of which may be set by a system administrator. Application definitions are stored in a database on a domain controller. A subset of application parameters are user overridable. Each application definition may be associated with at least one user by a system administrator, whereby the corresponding application is made available to each such user. User overridable parameters may be assigned user specific values, which may be different for each user associated with the application definition. These are also stored in the domain controller database with the user associations.

Abstract: File mappings are dynamically loaded within an operating data processing system appended to existing file or directory mappings during operation rather than being loaded during system initialization. A triggering event, such as a user logging into a network from the data processing system with a unique userid, initiates the process for selectively loaded the dynamic file mappings. A context variable, such as the userid of the user logging into the network, is employed to select the set or table of file mappings which are dynamically loaded. The dynamically loaded file mappings are appended to traditional, machine-specific file mappings loaded at system initialization and may be unloaded without affecting such traditional file mappings. The capability of dynamic file mapping allows single-user applications, those designed for use by only one user at a time, to be shared from a single network location, with user-specific files mapped to different locations for different users.

Abstract: A process for terminating a client server network connection that includes a first automatic termination of all programs executing on the client from code accessed from the server. The disconnection processing interrogates the client computer system to determine any open program files or libraries. Network program files or libraries result in a user prompting to determine whether they should be automatically terminated. In an alternate embodiment, a profile may indicate whether automatic termination will take place without user notification. Once all network loaded programs have been terminated, the disconnection process proceeds normally to sever the network connection.

Abstract: Apparatus for optically determining the temperature of an object in an environment at elevated temperature provides enhanced measurement accuracy by sensing radiation from the object in two or more different wavebands of radiation. The information derived therefrom is cyclically sampled and processed to provide corrected emissivity of the object. The temperature of the object is accurately determined from the corrected emissivity and sensed radiation therefrom. The apparatus includes a radiation detector for receiving radiation during an interval, an optical filter structure with a plurality of optical filters of different radiation transmissive characteristics, and sampling circuits for receiving the radiation signal from the detector during a selected period within the interval during which radiation is supplied to the detector; wherein the selected period is shorter than the interval, is determined in response to the cyclic operation of the filter structure, and contains the least amlitude gradient.