Virtualization is a process that uses software to create virtual versions of computer hardware resources like processors, memory, and storage. This allows a single physical machine to run multiple virtual machines, with each VM running its own operating system like an independent computer. Key benefits of virtualization include more efficient hardware utilization, reduced costs, and easier management of infrastructure. There are various types of virtualization including desktop, network, storage, application, and more. A hypervisor is software that creates and runs virtual machines, allowing a host computer to share its resources among multiple guest VMs.
Need for Virtualization – Pros and cons of Virtualization – Types of Virtualization –System VM, Process VM, Virtual Machine monitor – Virtual machine properties - Interpretation and binary translation, HLL VM - supervisors – Xen, KVM, VMware, Virtual Box, Hyper-V.
In recent years, we have seen an overwhelming number of TV commercials that promise that the Cloud can help with many problems, including some family issues. What stands behind the terms “Cloud” and “Cloud Computing,” and what we can actually expect from this phenomenon? A group of students of the Computer Systems Technology department and Dr. T. Malyuta, whom has been working with the Cloud technologies since its early days, will provide an overview of the business and technological aspects of the Cloud.
Need for Virtualization – Pros and cons of Virtualization – Types of Virtualization –System VM, Process VM, Virtual Machine monitor – Virtual machine properties - Interpretation and binary translation, HLL VM - supervisors – Xen, KVM, VMware, Virtual Box, Hyper-V.
In recent years, we have seen an overwhelming number of TV commercials that promise that the Cloud can help with many problems, including some family issues. What stands behind the terms “Cloud” and “Cloud Computing,” and what we can actually expect from this phenomenon? A group of students of the Computer Systems Technology department and Dr. T. Malyuta, whom has been working with the Cloud technologies since its early days, will provide an overview of the business and technological aspects of the Cloud.
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.
Virtual versions of servers, applications, networks and storage can be created through virtualization. Its main types include operating system virtualization (VMs), hardware virtualization, application-server virtualization, storage virtualization, network virtualization, administrative virtualization and application virtualization.
Virtualization has fundamentally changed the shape of the IT landscape in the past decade. If you haven’t learned the ins and outs of hypervisors, hosts, and guests, attend our virtual webinar to learn about the different kinds of virtualization, the benefits of the technology, and the different players in the industry!
Bridging the Digital Gap Brad Spiegel Macon, GA Initiative.pptxBrad Spiegel Macon GA
Brad Spiegel Macon GA’s journey exemplifies the profound impact that one individual can have on their community. Through his unwavering dedication to digital inclusion, he’s not only bridging the gap in Macon but also setting an example for others to follow.
Multi-cluster Kubernetes Networking- Patterns, Projects and GuidelinesSanjeev Rampal
Talk presented at Kubernetes Community Day, New York, May 2024.
Technical summary of Multi-Cluster Kubernetes Networking architectures with focus on 4 key topics.
1) Key patterns for Multi-cluster architectures
2) Architectural comparison of several OSS/ CNCF projects to address these patterns
3) Evolution trends for the APIs of these projects
4) Some design recommendations & guidelines for adopting/ deploying these solutions.
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.
Virtual versions of servers, applications, networks and storage can be created through virtualization. Its main types include operating system virtualization (VMs), hardware virtualization, application-server virtualization, storage virtualization, network virtualization, administrative virtualization and application virtualization.
Virtualization has fundamentally changed the shape of the IT landscape in the past decade. If you haven’t learned the ins and outs of hypervisors, hosts, and guests, attend our virtual webinar to learn about the different kinds of virtualization, the benefits of the technology, and the different players in the industry!
Bridging the Digital Gap Brad Spiegel Macon, GA Initiative.pptxBrad Spiegel Macon GA
Brad Spiegel Macon GA’s journey exemplifies the profound impact that one individual can have on their community. Through his unwavering dedication to digital inclusion, he’s not only bridging the gap in Macon but also setting an example for others to follow.
Multi-cluster Kubernetes Networking- Patterns, Projects and GuidelinesSanjeev Rampal
Talk presented at Kubernetes Community Day, New York, May 2024.
Technical summary of Multi-Cluster Kubernetes Networking architectures with focus on 4 key topics.
1) Key patterns for Multi-cluster architectures
2) Architectural comparison of several OSS/ CNCF projects to address these patterns
3) Evolution trends for the APIs of these projects
4) Some design recommendations & guidelines for adopting/ deploying these solutions.
This 7-second Brain Wave Ritual Attracts Money To You.!nirahealhty
Discover the power of a simple 7-second brain wave ritual that can attract wealth and abundance into your life. By tapping into specific brain frequencies, this technique helps you manifest financial success effortlessly. Ready to transform your financial future? Try this powerful ritual and start attracting money today!
APNIC Foundation, presented by Ellisha Heppner at the PNG DNS Forum 2024APNIC
Ellisha Heppner, Grant Management Lead, presented an update on APNIC Foundation to the PNG DNS Forum held from 6 to 10 May, 2024 in Port Moresby, Papua New Guinea.
# Internet Security: Safeguarding Your Digital World
In the contemporary digital age, the internet is a cornerstone of our daily lives. It connects us to vast amounts of information, provides platforms for communication, enables commerce, and offers endless entertainment. However, with these conveniences come significant security challenges. Internet security is essential to protect our digital identities, sensitive data, and overall online experience. This comprehensive guide explores the multifaceted world of internet security, providing insights into its importance, common threats, and effective strategies to safeguard your digital world.
## Understanding Internet Security
Internet security encompasses the measures and protocols used to protect information, devices, and networks from unauthorized access, attacks, and damage. It involves a wide range of practices designed to safeguard data confidentiality, integrity, and availability. Effective internet security is crucial for individuals, businesses, and governments alike, as cyber threats continue to evolve in complexity and scale.
### Key Components of Internet Security
1. **Confidentiality**: Ensuring that information is accessible only to those authorized to access it.
2. **Integrity**: Protecting information from being altered or tampered with by unauthorized parties.
3. **Availability**: Ensuring that authorized users have reliable access to information and resources when needed.
## Common Internet Security Threats
Cyber threats are numerous and constantly evolving. Understanding these threats is the first step in protecting against them. Some of the most common internet security threats include:
### Malware
Malware, or malicious software, is designed to harm, exploit, or otherwise compromise a device, network, or service. Common types of malware include:
- **Viruses**: Programs that attach themselves to legitimate software and replicate, spreading to other programs and files.
- **Worms**: Standalone malware that replicates itself to spread to other computers.
- **Trojan Horses**: Malicious software disguised as legitimate software.
- **Ransomware**: Malware that encrypts a user's files and demands a ransom for the decryption key.
- **Spyware**: Software that secretly monitors and collects user information.
### Phishing
Phishing is a social engineering attack that aims to steal sensitive information such as usernames, passwords, and credit card details. Attackers often masquerade as trusted entities in email or other communication channels, tricking victims into providing their information.
### Man-in-the-Middle (MitM) Attacks
MitM attacks occur when an attacker intercepts and potentially alters communication between two parties without their knowledge. This can lead to the unauthorized acquisition of sensitive information.
### Denial-of-Service (DoS) and Distributed Denial-of-Service (DDoS) Attacks
1.Wireless Communication System_Wireless communication is a broad term that i...JeyaPerumal1
Wireless communication involves the transmission of information over a distance without the help of wires, cables or any other forms of electrical conductors.
Wireless communication is a broad term that incorporates all procedures and forms of connecting and communicating between two or more devices using a wireless signal through wireless communication technologies and devices.
Features of Wireless Communication
The evolution of wireless technology has brought many advancements with its effective features.
The transmitted distance can be anywhere between a few meters (for example, a television's remote control) and thousands of kilometers (for example, radio communication).
Wireless communication can be used for cellular telephony, wireless access to the internet, wireless home networking, and so on.
2. Virtualization is a process that allows for more efficient utilization of
physical computer hardware and is the foundation of cloud computing.
Virtualization uses software to create an abstraction layer over computer
hardware that allows the hardware elements of a single computer
(processors, memory, storage and more) to be divided into multiple virtual
computers, commonly called virtual machine.
Each VM runs its own operating system (OS) and behaves like an
independent computer, even though it is running on just a portion of the
actual underlying computer hardware.
virtualization enables more efficient utilization of physical computer
hardware and allows a greater return on an organization’s hardware
investment.
3. Need of virtualization
reduced cost
ease of management
fast deployment
reduce infrastructure cost
4. Types of virtualization
Desktop virtualization
Network virtualization
Storage virtualization
Data virtualization
Application virtualization
Data center virtualization
CPU virtualization
GPU virtualization
Linux virtualization
Cloud virtualization
Desktop virtualization
5. Desktop virtualization
Desktop virtualization lets you run multiple desktop operating systems, each in its
own VM on the same computer.
There are two types of desktop virtualization:
1. Virtual desktop infrastructure (VDI) runs multiple desktops in VMs on a central
server and streams them to users who log in on thin client devices.
2. Local desktop virtualization
Network virtualization
Network virtualization uses software to create a “view” of the network that an
administrator can use to manage the network from a single console. It abstracts
hardware elements and functions (e.g., connections, switches, routers, etc.) and
abstracts them into software running on a hypervisor. The network
administrator can modify and control these elements without touching the
underlying physical components which dramatically simplifies network
management.
6. Storage virtualization
Storage virtualization enables all the storage devices on the network—
whether they’re installed on individual servers or standalone storage units—to
be accessed and managed as a single storage device.
Data virtualization
Modern enterprises store data from multiple applications, using multiple file
formats, in multiple locations, ranging from the cloud to on-premise hardware
and software systems. Data virtualization lets any application access all of that
data—irrespective of source, format, or location.
7. What is a virtual machine?
A Virtual Machine (VM) is a computer resource that uses software instead of a
physical computer to run programs and deploy apps. One or
more virtual “guest” machines run on a physical “host” machine. Each virtual
machine runs its own operating system and functions
separately from the other VMs, even when they are all running on the
same host. This means that, for example, a virtual MacOS virtual machine can
run on a physical PC.
Virtual machine technology is used for many use cases across on-premises and
cloud environments.
Virtual machines (VMs) allow a business to run an operating system that
behaves like a completely separate computer in an app window
on a desktop. VMs may be deployed to accommodate different levels
of processing power needs, to run software that requires a different operating
system, or to test applications in a safe, sandboxed environment.
8. What is a hypervisor?
A hypervisor, also known as a virtual machine monitor or VMM, is software that
creates and runs virtual machines (VMs). A hypervisor allows one host computer to
support multiple guest VMs by virtually sharing its resources, such as memory and
processing.
TYPE-1 Hypervisor:
The hypervisor runs directly on the underlying host system. It is also known as a
“Native Hypervisor” or “Bare metal hypervisor”. It does not require any base server
operating system. It has direct access to hardware resources.
TYPE-2 Hypervisor:
A Host operating system runs on the underlying host system. It is also known as
‘Hosted Hypervisor”. Such kind of hypervisors doesn’t run directly over the
underlying hardware rather they run as an application in a Host system(physical
machine)
9.
10. VMware Infrastructure Architecture
VMware® Infrastructure is the industry’s first full infrastructure virtualization suite
that allows enterprises and small businesses alike to transform, manage and optimize
their IT systems infrastructure through virtualization. VMware Infrastructure delivers
comprehensive virtualization, management, resource optimization, application
availability and operational automation capabilities in an integrated offering
11. VMware Infrastructure includes the following components as shown in Figure 1-1:
• VMware ESX Server – A production-proven virtualization layer run on physical servers
that abstract processor, memory, storage and networking resources to be provisioned to
multiple virtual machines
• VMware Virtual Machine File System (VMFS) – A high-performance cluster file system
for virtual machines
• VMware Virtual Symmetric Multi-Processing (SMP) – Enables a single virtual machine
to use multiple physical processors simultaneously
• VirtualCenter Management Server – The central point for configuring, provisioning and
managing virtualized IT infrastructure
• Virtual Infrastructure Client (VI Client) – An interface that allows administrators and
users to connect remotely to theVirtualCenter Management Server or individual ESX
Server installations from any Windows PC
• Virtual Infrastructure Web Access – A Web interface for virtual machine management
and remote consoles access
• VMware VMotion™ – Enables the live migration of running virtual machines from one
physical server to another with zero downtime, continuous service availability and
complete transaction integrity
• VMware High Availability (HA) – Provides easy-to-use, costeffective high availability for
applications running in virtual machines. In the event of server failure, affected virtual
machines are automatically restarted on other production servers that have spare
capacity
12. • VMware Distributed Resource Scheduler (DRS) – Intelligently allocates and balances
computing capacity dynamically across collections of hardware resources for virtual
machines
• VMware Consolidated Backup – Provides an easy to use, centralized facility for agent-
free backup of virtual machines. It simplifies backup administration and reduces the
load on ESX Server installations
• VMware Infrastructure SDK – Provides a standard interface for VMware and third-
party solutions to access VMware