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Operating system virtualization paradigm
OS-level virtualization is an operating system (OS) virtualization paradigm in which the kernel allows the existence of multiple isolated user space instances
OS-level_virtualization
Software that emulates an entire computer
advantages over software virtualization. In OS-level virtualization, a physical server is virtualized at the operating system level, enabling multiple isolated
Virtual_machine
Method to encapsulate computer programs
(physical hardware). Full application virtualization requires a virtualization layer. Application virtualization layers replace part of the runtime environment
Application_virtualization
Hardware-assisted virtualization on x86/x86-64 CPUs
x86 virtualization is the use of hardware-assisted virtualization capabilities on an x86/x86-64 CPU. In the late 1990s x86 virtualization was achieved
X86_virtualization
cause some slow downs as compared to running outside of virtualization. ^ OS-level virtualization is described as "native" speed, however some groups have
Comparison of platform virtualization software
Comparison_of_platform_virtualization_software
computing, virtualization is the use of a computer to simulate another computer. The following is a chronological list of virtualization technologies
Timeline of virtualization technologies
Timeline_of_virtualization_technologies
Operating system-level virtualization for Linux
Linux Containers (LXC) is an operating system-level virtualization method for running multiple isolated Linux systems (containers) on a control host using
LXC
Security-focused Linux-based operating system
the use of virtualization technology. This allows the segmentation of applications into secure virtual machines called qubes. Virtualization services in
Qubes_OS
Value identifying a user account in Unix and Unix-like operating systems
check for and avoid conflicts with UID's already existing on NSS. OS-level virtualization can remap user identifiers, e.g. using Linux namespaces, and therefore
User_identifier
Virtualization of computers or operating systems
Hardware virtualization is the virtualization of computers as complete hardware platforms, certain logical abstractions of their componentry, or only the
Hardware_virtualization
Methods for dividing computing resources
computer. In hardware virtualization, the host machine is the machine that is used by the virtualization and the guest machine is the virtual machine. The words
Virtualization
Combining resources into a single entity
a virtual network. Network virtualization involves platform virtualization, often combined with resource virtualization. Network virtualization is categorized
Network_virtualization
Operating system
Hardware virtualization Native zones provide SmartOS applications isolation environment, based on Solaris Containers, an OS-level virtualization, without
SmartOS
Linux distribution based on musl and BusyBox
used in containers providing quick boot-up times, on virtual machines (e.g., OS-level virtualization) as well as on real hardware in embedded devices, such
Alpine_Linux
Virtual machine running on a host computer
several approaches to virtualization. In hardware virtualization, a hypervisor such as the Kernel-based Virtual Machine allows each virtual machine (VM) to
Virtual_private_server
Open-source x86 virtualization application
portal Comparison of platform virtualization software VMware Workstation OS-level virtualization x86 virtualization "VirtualBox 7.2.20 (released September
VirtualBox
Project for adding Rust language to Linux kernel
is being developed on the freedesktop.org project infrastructure LynxOS RedoxOS Vaughan-Nichols, Steven. "Rust in Linux: Where we are and where we're
Rust_for_Linux
Way of using computer memory
user-mode process. BIOS CPU modes Early user space Memory protection OS-level virtualization Older operating systems, such as DOS and Windows 3.1x, do not use
User_space_and_kernel_space
Piece of software or hardware that creates and runs virtual machines
against kernel-mode rootkits. Comparison of platform virtualization software OS-level virtualization Virtual memory super- is from Latin, meaning "above", while
Hypervisor
Operating-system level virtualization technology
platform virtualization software OS-level virtualization Proxmox Virtual Environment "OpenVZ". is a virtualization technology that allows multiple virtual servers
OpenVZ
Performing the actions encoded in a computer program
and operating systems written for another CPU or architecture. OS-level virtualization allows the resources of a computer to be partitioned via the kernel
Execution_(computing)
American technology company
automates the deployment of code inside software containers via OS-level virtualization. Major commercial products of the company are Docker Hub, a central
Docker,_Inc.
Virtualization module in the Linux kernel
Kernel-based Virtual Machine (KVM) is a free and open-source virtualization module in the Linux kernel that allows the kernel to function as a hypervisor
Kernel-based_Virtual_Machine
Hardware-assisted virtualization technology
Second Level Address Translation (SLAT), also known as nested paging, is a hardware-assisted virtualization technology which makes it possible to avoid
Second Level Address Translation
Second_Level_Address_Translation
Layer of protection in computer systems
host OS. Before hardware-assisted virtualization, guest operating systems ran under ring 1. Any attempt that requires a higher privilege level to perform
Protection_ring
Integration of software development and operations
facilitate DevOps automation technologies like virtual machines, containerization (or OS-level virtualization), and CI/CD, with the Git version control system
DevOps
Cloud computing concept
engineering, containerization is operating-system-level virtualization or application-level virtualization over multiple resources so that software applications
Containerization_(computing)
Software technology
Desktop virtualization can be used in conjunction with application virtualization and user profile management systems, now termed user virtualization, to
Desktop_virtualization
Daemonless OCI-compliant container runtime
pods on the Linux operating system, with support for macOS and Microsoft Windows via a virtual machine. Based on the libpod library, it offers APIs for
Podman
Operating system component
architecture to be run. Operating system-level virtualization is a server virtualization technology which virtualizes servers on an operating system (kernel)
System_virtual_machine
Software capable of working on a device without a graphical user interface
users and AI agents to access data through third-party tools. OS-level virtualization Secure Shell (SSH) Headless browser Headless computer Headless
Headless_software
Free software operating system based on Solaris
Kernel-based Virtual Machine (KVM), a virtualization infrastructure. KVM supports native virtualization on processors with hardware virtualization extensions
Illumos
Native hypervisor by Microsoft
process is transparent to the guest OS. Virtual devices can also take advantage of a Windows Server Virtualization feature, named Enlightened I/O, for
Hyper-V
Collection of loosely coupled services used to build computer applications
computing, and applications using lightweight container deployment via OS-level virtualization. According to Fowler, because of the large number (when compared
Microservices
Version of Windows Server, released in 2016
Server version 1709, Nano Server can only be installed inside an OS-level virtualization container host. Microsoft has been reorganized by Satya Nadella
Windows_Server_2016
Open-source sandboxing computer program
Sandboxie is an open-source OS-level virtualization solution for Microsoft Windows. It is a sandboxing solution that creates an isolated operating environment
Sandboxie
Free and open-source software operating system
kernels. Genode supports virtualization at different levels: Using NOVA or Genode's custom kernel, faithful virtualization via VirtualBox allows for the execution
Genode
Container for a set of identifiers
can partition kernel resources by isolated namespaces to support OS-level virtualization containers. Similarly, hierarchical file systems organize files
Namespace
Software for deploying containerized applications
Docker is a set of products that uses operating system-level virtualization to deliver software in packages called containers. Docker automates the deployment
Docker_(software)
OS-level virtualisation
Operating system-level virtualization Operating system-level virtualization § Implementations Comparison of platform virtualization software Virtual machines
Solaris_Containers
Programming technique for efficiently duplicating data
engines doing OS-level virtualization often perform copy-on-write in storage, either block-level copy-on-write (as described above) or file-level copy-on-write
Copy-on-write
Application container for Linux
April 2026) Written in Shell language Operating system Linux Type OS-level virtualization License GNU GPLv3 Website distrobox.it Repository github.com/89luca89/distrobox
Distrobox
Free and open-source Unix-like operating system
version 4, jails are a security mechanism and an implementation of OS-level virtualization that enables the user to run multiple instances of a guest operating
FreeBSD
Shell command and system call that changes the apparent root directory
$TARGETDIR ln -s /proc/mounts /etc/mtab List of Unix commands OS-level virtualization Sandbox (computer security) sudo "jail, section 9". docs.freebsd
Chroot
Free, cross-platform and open-source computer program
and open-source computer program that performs operating system-level virtualization also known as containerization. One of the main uses of Apptainer
Apptainer
Hardware that translates virtual addresses to physical addresses
tables to a more physically oriented data structure. This makes OS-level virtualization, later called paravirtualization, easier. Starting in August, 1972
Memory_management_unit
Cluster manager designed by Google
academic research. List of cluster management software Kubernetes OS-level virtualization (containerization) Paxos (computer science) Verma, Abhishek; Pedrosa
Borg_(cluster_manager)
Open-source server virtualization platform
hardware virtualization extensions such as Intel VT-x or AMD-V are required for accelerated KVM virtualization. LXC provides operating-system-level virtualization
Proxmox_Virtual_Environment
Linux-based operating system developed by Google
KVM virtualization tool. Although crosvm supports multiple virtual machines, the one used for running Linux apps, Termina, contains a basic ChromeOS kernel
ChromeOS
Operating system for IBM mainframes
implementations had a single virtual address space, shared by all jobs. OS/VS1 is OS/360 MFT within a single virtual address space; OS/VS2 SVS was OS/360 MVT within
MVS
Operating system for Apple computers
operating systems, including iOS, iPadOS, watchOS, tvOS, audioOS and visionOS, are derivatives of macOS. During its history, macOS has supported three major
MacOS
Cloud computing software and services company
certification for the Kubernetes and Docker containerization via OS-level virtualization. The company released Mirantis Cloud Platform, which combines OpenStack
Mirantis
Compiler backend for multiple programming languages
Architecture Neutral Distribution Format (ANDF) Comparison of application virtualization software SPIR-V "LLVM Logo". The LLVM Compiler Infrastructure Project
LLVM
Management tool
tool for managing platform virtualization. It can be used to manage KVM, Xen, VMware ESXi, QEMU and other virtualization technologies. These APIs are
Libvirt
Providing to a computer system a logical view of physical storage
a storage system, there are two primary types of virtualization that can occur: Block virtualization used in this context refers to the abstraction (separation)
Storage_virtualization
Feature of the Linux kernel that partitions kernel resources
groups), are the foundational technologies underpinning modern OS-level virtualization and Linux containerization platforms such as Docker, Kubernetes
Linux_namespaces
Hosted hypervisor for Windows and Linux
Comparison of platform virtualization software OS-level virtualization VirtualBox VMware Fusion VMware Workstation Player x86 virtualization Thiruvathukal, George
VMware_Workstation
Testing environment for software development
layout of wiki pages. Comparison of online source code playgrounds OS-level virtualization Pastebin Sandbox (computer security) Sandbox effect (search engines)
Sandbox (software development)
Sandbox_(software_development)
Remote mobile virtualization, like its counterpart desktop virtualization, is a technology that separates operating systems and applications from the
Remote_mobile_virtualization
Operating system from IBM
for a new virtualization company. A large bank in Moscow needed a way to use OS/2 on newer hardware that OS/2 did not support. As virtualization software
OS/2
Type of computing virtualization
Network function virtualization (NFV) is a network architecture concept that leverages IT virtualization technologies to virtualize entire classes of network
Network function virtualization
Network_function_virtualization
Application virtualization software refers to both application virtual machines and software responsible for implementing them. Application virtual machines
Comparison of application virtualization software
Comparison_of_application_virtualization_software
Computer memory management technique
providing two levels of virtual memory; few if any operating systems do so, instead using only paging. Early non-hardware-assisted x86 virtualization solutions
Virtual_memory
Technique for compromising hypervisor software
Retrieved 27 February 2015. Ryan, Sherstobitoff. "Virtualization Security - Part 2". Virtualization Journal. Archived from the original on 27 February
Hyperjacking
Utility to run Linux containers on macOS
Swift package, which provides the low-level APIs for interacting with the Linux kernel and the macOS Virtualization layer, with no need for an additional
Apple_container
Operating system for IBM S/360 and later mainframes
2023[update] and maintain application-level compatibility with OS/360. IBM announced three different levels of OS/360, generated from the same tapes and
OS/360_and_successors
integrated cryptography. Qubes OS aims to provide security through isolation. Isolation is provided through the use of virtualization technology. This allows
List of security-focused operating systems
List_of_security-focused_operating_systems
Set of software subsystems or components needed to create a complete platform
(database, written in Erlang) Erlang (functional programming language) MAMP Mac OS X (operating system) Apache (web server) MySQL or MariaDB (database) PHP,
Solution_stack
Hypervisor designed for embedded systems
Mobile virtualization overlaps with embedded system virtualization, and shares some use cases. Typical attributes of embedded virtualization include
Embedded_hypervisor
Software that manages computer hardware resources
easier for programmers. Virtualization also enables the operating system to mask limited hardware resources; for example, virtual memory can provide a program
Operating_system
Family of second-generation microkernels
binaries. The NOVA OS Virtualization Architecture is a research project with focus on constructing a secure and efficient virtualization environment with
L4_microkernel_family
Polish hacker and computer security expert (born 1981)
technique dubbed Blue Pill, which used AMD's SVM hardware virtualization to move a running OS into a virtual machine controlled by a thin hypervisor. She claimed
Joanna_Rutkowska
Orthogonally persistent managed-code general purpose operating system
Phantom OS is an orthogonally persistent managed code general-purpose operating system. It is based on a concept of persistent virtual memory, and executes
Phantom_OS
Free Unix-like operating system kernel
concurrent processing). OS-level virtualization (with Linux-VServer), paravirtualization and hardware-assisted virtualization (with KVM or Xen, and using
Linux_kernel
Operating system that achieved security certification
controlled access protection sub-level of discretionary protection. MCP/AS obtained the C2 rating in August, 1987. The Unisys OS 2200 operating system includes
Security-evaluated operating system
Security-evaluated_operating_system
Mobile operating system by Apple
iOS (formerly iPhone OS) is a mobile operating system created and developed by Apple for its iPhone line of smartphones. It was unveiled in January 2007
IOS
Apple operating systems from 1984 to 2001
Mac OS (originally System Software; retronymically Classic Mac OS) is the series of operating systems developed for the Macintosh family of personal computers
Classic_Mac_OS
December 2008 Shefali Chinni, Radhakrishna Hiremane, Virtual Machine Device Queues, Intel Virtualization Technology White Paper, 2007 Tommaso Cucinotta, Dhaval
Temporal isolation among virtual machines
Temporal_isolation_among_virtual_machines
64-bit operating system for IBM mainframes
mainframes also offer two additional levels of virtualization: LPARs and (optionally) z/VM. From its inception z/OS has had tri-modal addressing (24-bit
Z/OS
Distributed operating system by Huawei
for pure single framework OpenHarmony-based HarmonyOS platform that supports QEMU virtualization adaptations natively that can enable users to run full
HarmonyOS
Type-1 hypervisor
virtualization with PV drivers for IO devices. PVHVM (paravirtualization with hardware virtualization): PV supported hardware-assisted virtualization
Xen
Software security mechanism
pastebin's server. FreeBSD jail Qubes OS, which uses an aggressive sandboxing method powered by Xen hypervisor virtualization Sandboxie seccomp Test bench Tor
Sandbox_(computer_security)
Subset of computer's virtualised hardware resources
Platform virtualization – Virtualization of computers or operating systemsPages displaying short descriptions of redirect targets Solaris Containers – OS-level
Logical_partition
iPod Touch iOS (formerly iPhone OS) iPad iPadOS Apple Watch watchOS Apple TV tvOS Embedded operating systems bridgeOS Apple Vision Pro visionOS Embedded
List_of_operating_systems
Computer security model
on a common hardware platform. With virtualization, NSA saw a way to preserve periods processing on a virtual level, no longer needing the physical system
Multiple_single-level
Virtual resource partitioning (VRP) is an operating system-level virtualization technology that allocates computing resources (such as CPU & I/O) to transactions
Virtual_resource_partitioning
Virtualisation software
Kernel-based Virtual Machine OS-level virtualization Landley, Rob (2009-12-16). "Rob's quick and dirty UML howto". Retrieved 2023-08-08. "Virtual Network User-Mode-Linux"
User-mode_Linux
American cloud computing and virtualization company
VMware LLC is an American cloud computing and virtualization technology company headquartered in Palo Alto, California, U.S. On November 22, 2023, Broadcom
VMware
Type of middleware software framework for remote GPU virtualization
Remote CUDA, is a type of middleware software framework for remote GPU virtualization. Fully compatible with the CUDA application programming interface (API)
RCUDA
that competition is a multi-level phenomenon that is influenced by individual-level, organizational-level, and network-level factors. By noting that many
Open_coopetition
Network operating system
(Nexus 5000/7000 linecards) iSCSI IPsec Scheduling NPIV NX Port ID Virtualization Inter–VSAN Routing VSAN Zoning (Hard zoning) Callhome Cisco Fabric Services
Cisco_NX-OS
64-bit extension of x86 architecture
limitations, or up to 128 PiB (virtual) and 4 PiB (physical) with 5-level paging enabled. Mac OS X 10.4.7 and higher versions of Mac OS X 10.4 run 64-bit command-line
X86-64
Core of a computer operating system
"interactions between different levels of protection require transmission of messages by value" Magee, Jim. WWDC 2000 Session 106 – Mac OS X: Kernel. 14 minutes
Kernel_(operating_system)
Portable emulator and PC debugger
drives. It doesn't utilize any host CPU virtualization features, therefore is slower than most virtualization (as opposed to emulation) software. It provides
Bochs
Linux distribution
intelligence, databases, virtualization, and network equipment. In 2026 the Dutch government also announced plans to make an hardened NixOS distro. The American
NixOS
Computer operating system
From Xbox One onwards it is an implementation with an emphasis on virtualization (using Hyper-V) as it is three operating systems running at once, consisting
Microsoft_Windows
OS-level virtualisation
Linux-VServer is a virtual private server implementation that was created by adding operating system-level virtualization capabilities to the Linux kernel
Linux-VServer
Mixed reality headset by Apple
marketing the device as a virtual reality headset when discussing the product in presentations and marketing. The device runs visionOS, a mixed-reality operating
Apple_Vision_Pro
Computer memory management methodology
processes to share it. In some operating systems, e.g. Burroughs/Unisys MCP, and OS/360 and successors, memory is managed by the operating system. In other operating
Memory_management
Free open-source operating system designed by Google
window manager System-level software and user-land services: the Linux kernel, drivers, connection manager, and so on Firmware ChromiumOS was first made available
ChromiumOS
travel, tourism, insurance
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