Abstract:
A method for preventing malicious software from execution within a computer system is disclosed. A permutation is performed on a subset of instructions within an application program to yield a permuted sequence of instructions before any actual execution of the application program on the computer system. A permutation sequence number of the permuted sequence of instructions is stored in a permuted instruction pointer table. The permuted sequence of instructions is executed in an execution module that is capable of translating the permuted sequence of instructions to an actual machine code of a processor within the computer system according to the permutation sequence number of the permuted sequence of instructions stored in the permuted instruction pointer table.
Abstract:
An apparatus, method, and computer readable storage medium are disclosed to recover from lost resources in a distributed server environment. A status monitor module receives, at a first computer, periodic status messages from a peer computer. Each periodic status message indicates that the peer computer is providing a service for which the first computer serves as a backup service provider. A failure detection module determines, based on the periodic status messages, that the peer computer has stopped providing the service. An advancement module provides the service, at the first computer, in response to determining that the peer computer has stopped providing the service.
Abstract:
Embodiments generally provide a utility for migrating an existing user operating system to a remote storage device. A utility for migrating user operating systems according to embodiments automatically detects and fixes inconsistent partition interdependencies resulting from the migration process.
Abstract:
Methods and arrangements where clients, in a diskless environment involving a storage area network, communicate to more optimally distribute the amount of disk input/output the individual clients are creating for the shared disk array.
Abstract:
An exemplary apparatus includes one or more processors, volatile memory, a storage drive and circuitry configured to establish a network connection and to attempt to send credentials via an established network connection. Such an apparatus further includes circuitry configured, responsive to authentication failure after an attempt to send credentials, to release an implemented security policy and load an operating system stored on the storage drive, and, responsive to an attempt to send credentials, to maintain an implemented security policy and to use an operating system exposed via an established network connection and associated with the sent credentials Such an apparatus optionally includes circuitry configured to implement a security policy that isolates at least a portion of a local storage drive. Various other apparatuses, systems, methods, etc., are also disclosed.
Abstract:
A technique for preventing damage to a portable device includes detecting movement of a portable device and determining whether a port of the portable device is attached to an external device. When the external device is attached to the port, a notification is provided to a user of the portable device that the external device requires detachment from the portable device (e.g., assuming that the notification is not masked).
Abstract:
A method for providing centralized user authorization to allow secure sign-on to a computer system is disclosed. In response to a user attempting to boot up a computer system, a message is sent to a trusted server by a hypervisor within the computer to request a new hard drive password for the computer system. If the user is not authorized to access the computer system, a packet is sent by the trusted server to instruct the hypervisor to stop any boot process on the computer system. If the user is authorized to access the computer system, a packet containing a partial hard drive password is sent by the trusted server to the computer system. The packet is then encrypted with a system public key by the computer system to yield the partial hard drive password. The computer system subsequently combines the partial hard drive password with a user password to generate a new complete hard drive password to continue with the boot process.
Abstract:
An apparatus, system, and method are disclosed for managing network bandwidth. A monitor module monitors traffic of a plurality of peer computers over a Transmission Control Protocol/Internet Protocol (TCP/IP) network. A detection module detects traffic exceeding a traffic threshold for the network. A delay module delays issuing each TCP/IP acknowledge signal for a specified delay interval in response to detecting the traffic exceeding the traffic threshold.
Abstract:
An arrangement for employing a host of receivers that may already be present in a laptop, to enable the laptop to collect a significant amount of data about its location. Once the system then finds a readily available connection, it can then transmit information about its location as well as other information to help pinpoint the location of the laptop.
Abstract:
A system, method, and program product is provided that receives and processes a firmware update at a computer system. The computer system is executing a hypervisor and one or more guest operating systems, and the firmware update corresponds to a hardware device accessible by the computer system. The hardware device is a type that is programmed using an updateable firmware. The hypervisor operating in the computer system processes the received firmware update by first inhibiting use of the device by each of the guest operating systems. After the guest operating systems have been inhibited from using the device, the firmware in the device is upgraded by the hypervisor using the received firmware update. After the firmware has been upgraded, each of the guest operating systems is allowed use of the device.