Cloud Computing and Virtualization Technology

  1. Cloud Computing
    Cloud computing is the delivery of computing resources via over-the-Internet services. This service model can be used to provide access to information technology (IT) resources that would otherwise require significant investments in physical infrastructure. Cloud computing allows users to store data in remote locations and access these resources through a web browser, mobile device, or thin client.
  2. Virtualization
    Virtualization is the creation of a fully functional system without using real hardware. In other words, a virtual machine is a software implementation of a computer architecture. A virtual machine provides a complete platform that supports the execution of a separate operating environment. This means that applications running on a host computer do not have direct access to the underlying hardware but instead run within a virtualized version of the operating system.

Cloud Fundamentals.

  1. What is Cloud Computing?
    Cloud computing is a model of service delivery that allows access to shared resources through different devices over the Internet. This means that cloud services are provided to users without requiring them to own hardware or software.
  2. Why do we need Cloud Computing?
    The primary reason why we need cloud computing is due to scalability. Scalability refers to the ability to expand or contract a system’s capacity according to demand. In other words, if your business grows, then you can add more servers to handle the increased load. However, this is not possible with traditional models of IT infrastructure. With cloud computing, you only pay for what you use. You don’t have to buy additional servers or storage space when your workload increases.
  3. How does Cloud Computing work?
    In order to understand how cloud computing works, let’s first look at some basic terms. A virtual machine (VM) is a piece of software that runs on top of a physical server. VMs provide a way to divide a single server into multiple isolated environments. Each VM has its own operating system and applications. When you create a VM, you choose from a variety of pre-built images. These images include everything needed to run an application, including the OS, middleware, and any databases. You can even customize these images to meet your specific needs.

Public Cloud Environment.

  1. Amazon Web Services (AWS)
    AWS is a web service that provides cloud computing resources through their data centers located throughout the world. AWS offers several services including Elastic Compute Cloud (EC2), Simple Storage Service (S3), Elastic Block Store (EBS), Relational Database Service (RDS), Application Auto Scaling, Elastic Load Balancing, Elastic IP Addresses, Cloud Front, and others.
  2. Microsoft Azure
    Microsoft Azure is a public cloud platform offered by Microsoft. Azure includes many similar features to AWS, but has its own unique set of features as well.
  3. Google Cloud Platform
    Google Cloud Platform is a suite of online services provided by Google. These include Google App Engine, Google Compute Engine, Google Kubernetes Engine, Google Container Engine, and Google Big Query.

Private Cloud Environment.

  1. Private cloud environment is a virtualized data center that is hosted inside your own private network. This type of environment is ideal for companies who want to have complete control over their infrastructure and resources. In this video we discuss how to set up a private cloud environment using VMware vSphere.
  2. Virtualization
    Virtualization allows multiple operating systems to run on the same physical server. VMware provides tools to create and manage these environments. Each virtual machine has its own copy of the operating system and applications running on them. These VMs can then be moved from server to server without any impact to the application.
  3. ES Xi
    ES Xi is VMware’s hypervisor. It is used to provide hardware abstraction between the VM and the underlying hardware. It is optimized for performance and reliability.

Cloud as Lass.

  1. What are the benefits of using cloud computing?
  • Cloud Computing allows users to access their data from anywhere at any time.
  • Cloud Computing provides users with redundancy and scalability.
  • Cloud Computing offers users a secure environment.
  • Cloud Computing can help reduce costs.
Laptop with code on display putting over icons programming app, software program improvement, internet coding. Isometric conceptual example about collaboration paintings via net or cloud storage. Remote paintings.

Virtualization Network Security.

  1. Virtualization Network Security
    In today’s world, virtualization has become a necessity. With the rise of cloud computing, it is becoming increasingly common for organizations to use virtualized networks. This means that instead of having physical servers running network services, they can run them in software. This allows companies to save money by not having to purchase hardware, and it also makes it easier to scale their infrastructure if needed. However, this comes at a cost. When using virtualization, it is possible to expose your network to security risks. If your organization uses virtual machines (VM) to host its applications ,then you may need to consider how to secure these VMs.
  2. Network Security
    Network security is the protection of information from unauthorized access, modification, or destruction. In order to protect your network, you need to understand what threats are out there. You should also know how to prevent those threats from affecting your network. There are many different types of threats that could affect your network. Some of the most common include viruses, worms, spyware, adware, denial-of-service attacks, and hacking.
  3. Firewalls
    A firewall is a device used to block incoming traffic to a computer system. A firewall is usually placed between a private network and the Internet. They are designed to filter out malicious code and other harmful content while allowing legitimate data to pass through.

Virtualization And Technology.

  1. Virtualization technologies are used to create multiple isolated environments within a single physical server. This allows for the creation of multiple virtual machines (VMs) that can run independently from each other while sharing the same hardware resources. VMs can be created using either software-based solutions or hardware-based solutions. Software-based solutions include VMware ESX Server, Microsoft Hyper-V, Xen Server, etc. Hardware-based solutions include blade servers, rack servers, etc.
  2. VM technology has been around since the early 1990s but was not widely adopted until recently due to its high cost and complexity. However, this has changed drastically over the last few years as the price of computing power has dropped significantly. In addition, cloud computing services have become much more affordable and accessible. As a result, many companies now use virtualization technologies to provide their employees with access to applications and data without having to purchase additional hardware.
  3. Cloud computing is a model of service delivery for enabling convenient, on-demand network access to a shared pool of configurable computer resources (e.g., networks, servers, storage, applications, and services) that can be rapidly provisioned and released with minimal management effort or service provider interaction.
  4. Cloud computing provides users with elasticity, where they can dynamically scale compute capacity according to demand. Users pay only for what they use.
  5. Cloud computing enables organizations to reduce capital expenditures through the use of utility computing models. Utility computing models allow customers to consume resources on demand, eliminating the need to invest in expensive infrastructure before the first customer is served.
  6. Cloud computing reduces operating expenses by providing a common platform for application hosting and consolidation.

Issues Of Virtualization.

This can be done through either hardware virtualization (also known as paravirtualization) or software virtualization. Hardware virtualization involves using a hypervisor to create a separate environment for each guest operating system. Software virtualization uses a host operating system’s kernel to provide services to guest operating systems.
The benefits of virtualization are many, including increased security, reduced cost, and improved performance. However, there are some issues associated with this technology. One issue is that if a virtual machine crashes, then the entire virtualized environment may crash as well. Another issue is that virtual machines cannot share resources directly with other virtual machines. They need to use shared storage devices, which can cause problems if they fail.

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