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In theory, a virtual machine is a "completely isolated guest operating system installation within a normal host operating system", [2] but this isn't always the case in practice. For example, in 2008, a vulnerability ( CVE - 2008-0923 ) in VMware discovered by Core Security Technologies made VM escape possible on VMware Workstation 6.0.2 and 5.5.4.
Integrity Virtual Machines can be created and managed using a command-line interface or a graphical user interface accessed using a web browser. Essential commands include: hpvmcreate to create virtual machines; hpvmstatus to display status information; hpvmstart and hpvmstop to start and stop virtual machines; hpvmmodify to modify existing ...
[citation needed] In order to keep offering high throughput processing, some combinations of software and hardware helpers are deployed in the so-called "network in a box" associated with either a hardware-dependent network interface controller (NIC) using SRIOV extensions of the hypervisor or either using a fast path technology between the NIC ...
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A hypervisor, also known as a virtual machine monitor (VMM) or virtualizer, is a type of computer software, firmware or hardware that creates and runs virtual machines. A computer on which a hypervisor runs one or more virtual machines is called a host machine , and each virtual machine is called a guest machine .
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Virtual DOS machines can operate either exclusively through typical software emulation methods (e.g. dynamic recompilation) or can rely on the virtual 8086 mode of the Intel 80386 processor, which allows real mode 8086 software to run in a controlled environment by catching all operations which involve accessing protected hardware and forwarding them to the normal operating system (as exceptions).
Integrity Virtual Machines: Hewlett-Packard: IA-64: IA-64 HP-UX: HP-UX, Windows, Linux (OpenVMS announced) Proprietary: JPC (Virtual Machine) University of Oxford: Any running the Java Virtual Machine: x86 Java Virtual Machine DOS, Linux, Windows up to 3.0 GPL version 2: KVM: Qumranet, now Red Hat x86, x86-64, IA-64, with x86 virtualization ...