Virtual machines allow multiple operating systems to run simultaneously on the same physical hardware through virtualization. A hypervisor manages access to physical resources and allocates what each virtual machine needs, providing isolation. This allows different operating systems, applications, and workloads to be securely isolated while sharing the same underlying hardware resources.
In this presentation, I am explaining about Virtual Machine, Its history, types, benefits, simulation and implementation. Also included some virtual machine application like VMware and more.
I hope you like my presentation.
Linkedin - https://in.linkedin.com/in/prakharmaurya
Hypervisors and Virtualization - VMware, Hyper-V, XenServer, and KVMvwchu
With co-presenter Maninder Singh, delivered a presentation about hypervisors and virtualization technology for an independent topic study project for the Operating System Design (EECS 4221) course at York University, Canada in October 2014.
Virtualization, briefly, is the separation of resources or requests for a service from the underlying physical delivery of that service. It is a concept in which access to a single underlying piece of hardware is coordinated so that multiple guest operating systems can share a single piece of hardware, with no guest operating system being aware that it is actually sharing anything at all.
From the moment you open up a website in your browser multiple virtual machines (VMs) are at work. The server generating the website might use Java, your browser executes JavaScript and maybe there is some Flash content running — with everything being executed in a VM.
Virtual machines became increasingly important and popular after Google’s introduction of V8. We expect our code to run fast but let’s step back for a second and see how these complicated pieces of software work. With a better understanding of how your daily ActionScript or JavaScript code is being executed you might start coding a little different.
Join Joa and dive deep into the the world of virtual machines. Learn about different garbage collection strategies and understand why those beasts behave the way they do.
A virtual machine (VM) is a software program or operating system that not only exhibits the behavior of a separate computer but is also capable of performing tasks such as running applications and programs like a separate computer.
This slides will provide viewers a complete understanding of all the different virtualization techniques.
The main reference for the presentation is taken from Mastering cloud computing By Rajkumar Buyya.
What is Virtualization and its types & Techniques.What is hypervisor and its ...Shashi soni
This PPT contains Following Topics-
1.what is virtualization?
2.Examples of virtualization.
3.Techniques of virtualization.
4.Types of virtualization.
5.What is Hipervisor.
6.Types of Hypervisor with Diagrams.
Some set of examples are there like Virtual Box with demo image.
In this presentation, I am explaining about Virtual Machine, Its history, types, benefits, simulation and implementation. Also included some virtual machine application like VMware and more.
I hope you like my presentation.
Linkedin - https://in.linkedin.com/in/prakharmaurya
Hypervisors and Virtualization - VMware, Hyper-V, XenServer, and KVMvwchu
With co-presenter Maninder Singh, delivered a presentation about hypervisors and virtualization technology for an independent topic study project for the Operating System Design (EECS 4221) course at York University, Canada in October 2014.
Virtualization, briefly, is the separation of resources or requests for a service from the underlying physical delivery of that service. It is a concept in which access to a single underlying piece of hardware is coordinated so that multiple guest operating systems can share a single piece of hardware, with no guest operating system being aware that it is actually sharing anything at all.
From the moment you open up a website in your browser multiple virtual machines (VMs) are at work. The server generating the website might use Java, your browser executes JavaScript and maybe there is some Flash content running — with everything being executed in a VM.
Virtual machines became increasingly important and popular after Google’s introduction of V8. We expect our code to run fast but let’s step back for a second and see how these complicated pieces of software work. With a better understanding of how your daily ActionScript or JavaScript code is being executed you might start coding a little different.
Join Joa and dive deep into the the world of virtual machines. Learn about different garbage collection strategies and understand why those beasts behave the way they do.
A virtual machine (VM) is a software program or operating system that not only exhibits the behavior of a separate computer but is also capable of performing tasks such as running applications and programs like a separate computer.
This slides will provide viewers a complete understanding of all the different virtualization techniques.
The main reference for the presentation is taken from Mastering cloud computing By Rajkumar Buyya.
What is Virtualization and its types & Techniques.What is hypervisor and its ...Shashi soni
This PPT contains Following Topics-
1.what is virtualization?
2.Examples of virtualization.
3.Techniques of virtualization.
4.Types of virtualization.
5.What is Hipervisor.
6.Types of Hypervisor with Diagrams.
Some set of examples are there like Virtual Box with demo image.
A Rookie-level presentation on Virtualization, and a sneak peek Cloud Computing.
This is a presentation created for a seminar presentation on Cloud and Virtualization Technologies.
Under normal conditions, this presentation may take upto 20-40 mins to complete.
Created and presented in Oct 2014.
Virtualization refers to the act of creating a virtual (rather than actual) version of something, including virtual computer hardware platforms, operating systems, storage devices, and computer network resources.
Hardware virtualization or platform virtualization refers to the creation of a virtual machine that acts like a real computer with an operating system.
Software executed on these virtual machines is separated from the underlying hardware resources.
For example, a computer that is running Microsoft Windows may host a virtual machine that looks like a computer with the Ubuntu Linux operating system; Ubuntu-based software can be run on the virtual machine
Key Trends Shaping the Future of Infrastructure.pdfCheryl Hung
Keynote at DIGIT West Expo, Glasgow on 29 May 2024.
Cheryl Hung, ochery.com
Sr Director, Infrastructure Ecosystem, Arm.
The key trends across hardware, cloud and open-source; exploring how these areas are likely to mature and develop over the short and long-term, and then considering how organisations can position themselves to adapt and thrive.
GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using Deplo...James Anderson
Effective Application Security in Software Delivery lifecycle using Deployment Firewall and DBOM
The modern software delivery process (or the CI/CD process) includes many tools, distributed teams, open-source code, and cloud platforms. Constant focus on speed to release software to market, along with the traditional slow and manual security checks has caused gaps in continuous security as an important piece in the software supply chain. Today organizations feel more susceptible to external and internal cyber threats due to the vast attack surface in their applications supply chain and the lack of end-to-end governance and risk management.
The software team must secure its software delivery process to avoid vulnerability and security breaches. This needs to be achieved with existing tool chains and without extensive rework of the delivery processes. This talk will present strategies and techniques for providing visibility into the true risk of the existing vulnerabilities, preventing the introduction of security issues in the software, resolving vulnerabilities in production environments quickly, and capturing the deployment bill of materials (DBOM).
Speakers:
Bob Boule
Robert Boule is a technology enthusiast with PASSION for technology and making things work along with a knack for helping others understand how things work. He comes with around 20 years of solution engineering experience in application security, software continuous delivery, and SaaS platforms. He is known for his dynamic presentations in CI/CD and application security integrated in software delivery lifecycle.
Gopinath Rebala
Gopinath Rebala is the CTO of OpsMx, where he has overall responsibility for the machine learning and data processing architectures for Secure Software Delivery. Gopi also has a strong connection with our customers, leading design and architecture for strategic implementations. Gopi is a frequent speaker and well-known leader in continuous delivery and integrating security into software delivery.
Epistemic Interaction - tuning interfaces to provide information for AI supportAlan Dix
Paper presented at SYNERGY workshop at AVI 2024, Genoa, Italy. 3rd June 2024
https://alandix.com/academic/papers/synergy2024-epistemic/
As machine learning integrates deeper into human-computer interactions, the concept of epistemic interaction emerges, aiming to refine these interactions to enhance system adaptability. This approach encourages minor, intentional adjustments in user behaviour to enrich the data available for system learning. This paper introduces epistemic interaction within the context of human-system communication, illustrating how deliberate interaction design can improve system understanding and adaptation. Through concrete examples, we demonstrate the potential of epistemic interaction to significantly advance human-computer interaction by leveraging intuitive human communication strategies to inform system design and functionality, offering a novel pathway for enriching user-system engagements.
LF Energy Webinar: Electrical Grid Modelling and Simulation Through PowSyBl -...DanBrown980551
Do you want to learn how to model and simulate an electrical network from scratch in under an hour?
Then welcome to this PowSyBl workshop, hosted by Rte, the French Transmission System Operator (TSO)!
During the webinar, you will discover the PowSyBl ecosystem as well as handle and study an electrical network through an interactive Python notebook.
PowSyBl is an open source project hosted by LF Energy, which offers a comprehensive set of features for electrical grid modelling and simulation. Among other advanced features, PowSyBl provides:
- A fully editable and extendable library for grid component modelling;
- Visualization tools to display your network;
- Grid simulation tools, such as power flows, security analyses (with or without remedial actions) and sensitivity analyses;
The framework is mostly written in Java, with a Python binding so that Python developers can access PowSyBl functionalities as well.
What you will learn during the webinar:
- For beginners: discover PowSyBl's functionalities through a quick general presentation and the notebook, without needing any expert coding skills;
- For advanced developers: master the skills to efficiently apply PowSyBl functionalities to your real-world scenarios.
State of ICS and IoT Cyber Threat Landscape Report 2024 previewPrayukth K V
The IoT and OT threat landscape report has been prepared by the Threat Research Team at Sectrio using data from Sectrio, cyber threat intelligence farming facilities spread across over 85 cities around the world. In addition, Sectrio also runs AI-based advanced threat and payload engagement facilities that serve as sinks to attract and engage sophisticated threat actors, and newer malware including new variants and latent threats that are at an earlier stage of development.
The latest edition of the OT/ICS and IoT security Threat Landscape Report 2024 also covers:
State of global ICS asset and network exposure
Sectoral targets and attacks as well as the cost of ransom
Global APT activity, AI usage, actor and tactic profiles, and implications
Rise in volumes of AI-powered cyberattacks
Major cyber events in 2024
Malware and malicious payload trends
Cyberattack types and targets
Vulnerability exploit attempts on CVEs
Attacks on counties – USA
Expansion of bot farms – how, where, and why
In-depth analysis of the cyber threat landscape across North America, South America, Europe, APAC, and the Middle East
Why are attacks on smart factories rising?
Cyber risk predictions
Axis of attacks – Europe
Systemic attacks in the Middle East
Download the full report from here:
https://sectrio.com/resources/ot-threat-landscape-reports/sectrio-releases-ot-ics-and-iot-security-threat-landscape-report-2024/
Securing your Kubernetes cluster_ a step-by-step guide to success !KatiaHIMEUR1
Today, after several years of existence, an extremely active community and an ultra-dynamic ecosystem, Kubernetes has established itself as the de facto standard in container orchestration. Thanks to a wide range of managed services, it has never been so easy to set up a ready-to-use Kubernetes cluster.
However, this ease of use means that the subject of security in Kubernetes is often left for later, or even neglected. This exposes companies to significant risks.
In this talk, I'll show you step-by-step how to secure your Kubernetes cluster for greater peace of mind and reliability.
UiPath Test Automation using UiPath Test Suite series, part 3DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 3. In this session, we will cover desktop automation along with UI automation.
Topics covered:
UI automation Introduction,
UI automation Sample
Desktop automation flow
Pradeep Chinnala, Senior Consultant Automation Developer @WonderBotz and UiPath MVP
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
Dev Dives: Train smarter, not harder – active learning and UiPath LLMs for do...UiPathCommunity
💥 Speed, accuracy, and scaling – discover the superpowers of GenAI in action with UiPath Document Understanding and Communications Mining™:
See how to accelerate model training and optimize model performance with active learning
Learn about the latest enhancements to out-of-the-box document processing – with little to no training required
Get an exclusive demo of the new family of UiPath LLMs – GenAI models specialized for processing different types of documents and messages
This is a hands-on session specifically designed for automation developers and AI enthusiasts seeking to enhance their knowledge in leveraging the latest intelligent document processing capabilities offered by UiPath.
Speakers:
👨🏫 Andras Palfi, Senior Product Manager, UiPath
👩🏫 Lenka Dulovicova, Product Program Manager, UiPath
Kubernetes & AI - Beauty and the Beast !?! @KCD Istanbul 2024Tobias Schneck
As AI technology is pushing into IT I was wondering myself, as an “infrastructure container kubernetes guy”, how get this fancy AI technology get managed from an infrastructure operational view? Is it possible to apply our lovely cloud native principals as well? What benefit’s both technologies could bring to each other?
Let me take this questions and provide you a short journey through existing deployment models and use cases for AI software. On practical examples, we discuss what cloud/on-premise strategy we may need for applying it to our own infrastructure to get it to work from an enterprise perspective. I want to give an overview about infrastructure requirements and technologies, what could be beneficial or limiting your AI use cases in an enterprise environment. An interactive Demo will give you some insides, what approaches I got already working for real.
Kubernetes & AI - Beauty and the Beast !?! @KCD Istanbul 2024
Virtual machines and their architecture
1. SREENIDHI INSTITUTE OF SCIENCE AND TECHNOLOGY
(Autonomous Institution, approved by UGC and Accredited by NAAC with ‘A’ Grade)
TECHNICAL SEMINAR
Presented by…
Mrinmoy Dalal
CSE A (13311A0506)
2. Can a “small” operating system simulate the
hardware of some machine so that:
• Another operating system can run in that
simulated hardware?
• More than one instance of that operating
system run on the same hardware at the
same time?
• More than one different operating system can
share the same hardware at the same time?
Question
4. VIRTUALIZATION
• Virtualization is an abstraction layer that decouples the physical
hardware from the operating system to deliver greater IT resource
utilization and flexibility.
• It allows multiple virtual machines, with heterogeneous operating
systems to run in isolation, side-by-side on the same physical
machine.
• Virtualization hides the physical characteristics of computing
resources from their users, be they applications, or end users.
6. HYPERVISOR
• Hypervisor is a software program that
manages multiple operating systems (or
multiple instances of the same operating
system) on a single computer system.
• The hypervisor manages the system's
processor, memory, and other resources to
allocate what each operating system requires.
• Hypervisors are designed for a particular
processor architecture and may also be called
Virtualization managers.
8. „A machine is a
tool that consists
of one or more
parts, and uses
energy to achieve
a particular goal.“
-WIKIPEDIA
9. „A virtual machine (VM) is a
simulation of a machine (abstract
or real) that is usually different
from the target machine (where it
is being simulated on).“
-WIKIPEDIA
10. • The resources of the physical
computer are shared to create
the virtual machines
– CPU scheduling can create the
appearance that each user has own
processor
– Spooling and a file system provide
• virtual card readers, virtual line printers
– Disk partitioned to provide virtual
disks
– A normal user time-sharing terminal
serves as the virtual machine
operator’s console
12. • Virtual-machine concept provides complete protection of
system resources
– Each virtual machine is isolated from all other virtual machines.
– However, no direct sharing of resources
• Virtual-machine system is a good vehicle for operating-
systems research and development.
– System development is done on the virtual machine does not
disrupt normal operation
– Multiple concurrent developers can work at same time
• The virtual machine concept is difficult to implement due
to the effort required to provide an exact duplicate to the
simulated machine
13. VM COMPATIBILITY
– Hardware Independent
• Physical hardware hidden by the
virtualization layer.
– Create Once, Run Anywhere
• No Configuration Issues
• Migrate VMs between Hosts
– Legacy VMs
• Run Ancient OS on new platform
• Eg: DOS
14. EXAMPLE – PAGE TABLES
• Suppose guest OS has its own page tables Then virtualization layer
must
– Copy those tables to its own
– Trap every reference or update to tables and simulate it
• During page fault
– Virtualization layer must decide whether fault belongs to guest OS or self
– If guest OS, must simulate a page fault
• Likewise, virtualization layer must trap and simulate every privileged
instruction in machine!
15. • Some hardware architectures or features are impossible to
virtualize
– Certain registers or state not exposed
– Unusual devices and device control
– Clocks, time, and real-time behavior
16. VIRTUAL MACHINE MONITOR
• Virtual machine monitor (VMM) or
hypervisor is software that supports
VMs. It determines how to map
virtual resources to physical ones
• Physical resource may be time-
shared, partitioned, or emulated in
software.
• VMM much smaller than a traditional
OS (Isolation portion of a VMM is 10,000
lines of code),
17. MAIN CONCERN OF VMM
• Biggest problem faced by the VMM is to present the
hardware to the VM in a “safe, transparent and efficient
way”
• Safe: whatever the VM does, it should not be able to affect
other VM’s or the VMM
• Maintain illusion by tricking the software into thinking it has
the hardware to itself and by hiding the true state of the
hardware
18. ATTRIBUTES OF VMM
• Encapsulation
– VMM manages both software and
hardware thus giving it the ability to
manage the hardware resources as well
as manipulate and control software stack
• Performance
– Overhead is generally transparent for
most workloads, only slowdowns occur
for isolation or maintain the transparent
illusion of hardware usage levels
20. Types Of Virtual Machines
Hardware-level virtualization
Operating system-level
High-level language virtual
machines
21. HARDWARE LEVEL VIRTUALIZATION
• Virtualization layer sits right on top
of the real hardware
• Since the VM presents a version the
real machine, all software written
for that hardware (x86) will run on
that virtual machine
• Original design from IBM in the
1960’s
22. OPERATING SYSTEM LEVEL VIRTUALIZATION
• Virtualization layer sit between
the operating system and the
application programs that run on
the operating system
• Virtual Machine runs applications,
or sets of applications written for
the operating system but in a
controlled environment
–use host OS API
Real Machine
OS
VMM
Virtual Machine
Application
Applications
23. HIGH-LEVEL LANGUAGE VIRTUAL MACHINES
• The virtualization layer sits as an
application program on top of
the operating system
• Can run any programs written
for that virtual machine
abstraction regardless of the
operating system hosting that
virtual machine
• Anyone have an example of
this?
Real Machine
OS
JVM
Java Byte Code
Applications
-Java
25. ATTRIBUTES OF ALL VIRTUAL MACHINES (1)
• Software Compatibility
– VM provides compatible abstraction so all software written for the
machine that VM is virtualizing will run on it
– Java: “write once, run anywhere”
• Isolation
– All software running on the virtual machine is contained within it
and can’t affect other VM’s or processes
26. ATTRIBUTES OF ALL VIRTUAL MACHINES (2)
• Encapsulation
– Virtual machines provide a level of indirection. Any software running within
them can be controlled and manipulated.
– Can act like putting a filter on a print service to monitor content or perform
additional book keeping.
• Java VM for example can perform run time error checking and garbage collection that
C++ compiled code can’t do running directly on the hardware
• Performance
– Any new software layer adds overhead to system
27. IMPORTANT USES OF VMs (1)
1. Multiple OSes
• No more dual boot!
• Can even transfer data (e.g., cut-and-paste) between VMs
2. Protection
• Crash or intrusion in one OS doesn’t affect others
• Easy to replace failed OS with fresh, clean one
28. IMPORTANT USES OF VMs (2)
3. Software Management
• VMs can run complete SW stack, even old OSes like DOS
• Run legacy OS, stable current, test release on same HW
4. Hardware Management
• Independent SW stacks can share HW
• Run application on own OS (helps dependability)
• Migrate running VM to different computer
• To balance load or to evacuate from failing HW
29.
30.
31.
32.
33. To Sum Up…
• Virtual machines are a number of discrete identical
execution environments on a single computer, each of which
runs an operating system. This can allow applications
written for one OS to be executed on a machine which runs
a different OS which provide a greater level of isolation
between processes than is achieved when running multiple
processes on the same instance of an OS.