Launching EC2 Instance_Free tier_Using Default VPC step by step

In AWS computing here i will show you how to launch EC2 instance (free tier) using default VPC (Virtual Private Cloud).  Before starting you must have an account on aws.

Steps ::

Log in to AWS Console.

Log in in aws console if dont have account simply can create account. For creating account in aws you must have credit card. You can also use international debit card as well.

After log in the console you will get the dash board. From dash board you can select regions as there are multiple regions are there and they are different types. Here I select Asia-Mumbai. And then you can get the option EC2 from compute. If you not you can search from drop down list or simply type on search box.

After opening ec2 dashboard you will get this type dashboard of ec2. From here you have to click launch instance.

Then you have to choose AMI (Amazon machine image). Here I am creating GUI so I am choosing here Windows Server 2016.

Here we have to Choose an Instance Type
There are many tepes of instances here basics are eligble for freetoer. Are rest of chargable so before proccedd must check which state you are choosing.
In this instance type there are 5 types and both are different purpose use. For more click here

Here I am selecting t2 micro general purpose free tier

Click Next : Configure instance type.
Now we got configure instance type here we have to configure vpc (already I mentioned this instance I am creating with default vpc , by default aws provided 1 deafult vpc so I am selecting default vpc).

Here I am selecting Number of instance 1 (Only 1 is eligble free tier after that you have to charge)
Network option selecting deafult vpc in subnetting als selectiong enable deafult vpc subnet

Shutdown behavior : use terminate as I will stop my instacne it will terminate the instance.

Then click on next and go to add storage

In storage by default vps already added need to check once, one more thing
In default storage drive is not encrypred and also you cant encrypt.
Click on next to configure security group.
Here you will get the security group. If you have already security group then you can use exisisting or you can create new security group.

Check final and review the instance before launch

Then  click on launch the instance.
Before launching you will ask for key pair. If you have already you can use or can create. Here I am showing create new key pair.
Give the name of the key pair

And download the key pair by simply clicking download option
And then click on LAUNCH

Your instance almost ready . check status check option what showing it will pass 2 test, system test and network test. After completed this 2 state then only launch the instance. Here it is showing initializing

After completed initializing the instance. You have to launch the instance.
For windows instance launcing need to folow the steps.
1st need to get he password. For that we have to use the security key which we download before launching the instance.
Click on action and then go to windows password

Here you have to select the file which you download before lunching then instance

After thet click on decrypt
Password

Here you will get you password for log in the instance

Now start the instance.
For winows we can take it remote for that need to open remote session
Type win+r button and type mstsc

Now you have to enter ip4 address
That address you will get from here

Enter the ip address to remote desktop control

You will be prompt for credentials username and password

Use administrator as deafult username
And password which you decrypt  and click ok

If all are ok it will identify and ask you for the  connection click yes

And it will load the page

Here finally instance launch susseccyfully.

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Cloud Computing Service Providers

A cloud provider is a company that offers some component of cloud computing – typically Infrastructure as a Service (IaaS), Software as a Service (SaaS) or Platform as a Service (PaaS).

There are many company who provided cloud computing services. Here we talk about some prestigious top leading companies who providing cloud services.

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Cloud Computing

Cloud computing is basically delivery of computing services—servers, storage, databases, networking, software, analytics and more, over the Internet.

Companies offering these computing services are called cloud providers and typically charge for cloud computing services based on usage, similar to how you are billed for water or electricity at home.

Third-party clouds enable organizations to focus on their core businesses instead of expending resources on computer infrastructure and maintenance.

Cloud computing Service models

In cloud computing there are mainly three (3) models are there. are;

SAAS : Software As A Service

PAAS: Platform As A Service

IAAS : Infrastructure  As A Service

SAAS : Software As A Service

The traditional model of software distribution, in which software is purchased for and installed on personal computers, is sometimes referred to as Software-as-a-Product.

SAAS is stand for Software As A Service. Software on demand refers to computer applications that are delivered as a service via the Internet. This type of software is also referred to as on-demand software, SaaS (Software-as-a-Service) and Applications-as-a-Service.

Image Source Google

The efficiency gains delivered by software on demand frees up IT personnel for the more important task of managing IT resources as a strategic tool to optimize their business operations.

SaaS applications are sometimes called Web-based software, on-demand software, or hosted software. Whatever the name, SaaS applications run on a SaaS provider’s servers. The provider manages access to the application, including security, availability, and performance.

For accessing you simply access it via the Internet, freeing yourself from complex software and hardware management.

Characteristics

For better understanding on SAAS model simply think on bank model.It protects the privacy of each customers while providing service that is reliable and secure—on a massive scale.

A bank’s customers all use the same financial systems and technology without worrying about anyone accessing their personal information without authorization.

Architecture

SAAS have MULTITENANT ARCHITECTURE.

In SAAS architecture it provided Multitenant Architecture. In this architecture all users and applications share a single, common infrastructure and code base that is centrally maintained. The single application runs on a server and multiple user who have access can access and do there work on the application.

Easy Customization

SAAS user easily customize applications to fit their business processes without affecting the common infrastructure. Because of the way SaaS is architect-ed, these customization are unique to each company or user and are always preserved through upgrades. That means SaaS providers can make upgrades more often, with less customer risk and much lower adoption cost.

Example : SendGrid, Tivoli Live, SalesForce.com

PAAS : Platform As A Service

It is a cloud computing model in which a third-party provider delivers hardware and software tools. Usually it needed for application development — to users over the internet. A PaaS provider hosts the hardware and software on its own infrastructure. As a result, PaaS frees users from having to install in-house hardware and software to develop or run a new application.

Enterprise PaaS provides line-of-business software developers a self-service portal for managing computing infrastructure from centralized IT operations and the platforms that are installed on top of the hardware. The enterprise PaaS can be delivered through a hybrid model that uses both public IaaS and on-premise infrastructure or as a pure private PaaS that only uses the latter.

Image Source : Google

Architecture

On-demand self-service :  End users can sign up and receive services without the long delays that have characterized traditional IT. It refers to the service provided by cloud computing vendors that enables the provision of cloud resources on demand whenever they are required.

API : Application Program Interface

Broad network access : Users can access the services by using standard platforms (such as desktop, laptop, and mobile).

Resource pooling: It allows cloud providers to pool large-scale IT resources to serve multiple cloud consumers.

Image Source : Google

Resource pooling is that through modern scalable systems involved in cloud computing and software as a service (SaaS), providers can create a sense of infinite or immediately available resources by controlling resource adjustments at a meta level. This allows customers to change their levels of service at will without being subject to any of the limitations of physical or virtual resources.

Rapid elasticity : Rapid elasticity allows users to automatically request additional space in the cloud or other types of services.

It typically done in two ways;

        Horizontal Scalability : Adding or removing nodes, servers or instances to or from a pool like a cluster or farm.

        Vertical Scalability : Adding or removing resources to an existing node, server or instance to increase the capacity of the node, server or instance.

Measured service : Cloud systems automatically control and optimize resource use by leveraging a metering capability at some level of abstraction appropriate to the type of service (e.g., storage, processing, bandwidth and active user accounts). Resource can be monitored, controlled and reported, providing transparency for the provider and consumer.

Example : AWS Elastic Beanstalk, Windows Azure, Heroku, Force.com, Google App Engine, Apache Stratos.

IAAS : Infrastructure  As A Service

IaaS is a form of cloud computing that provides virtualized computing resources over the internet. In this  model cloud provider hosts the infrastructure components traditionally present in an on-premises data center, including servers, storage and networking hardware, as well as the virtualization or hypervisor layer.

The IaaS provider also supplies a range of services to accompany those infrastructure components.

Characteristics :

SCALING : This important characteristic of IaaS is called dynamic scaling — if customers wind up needing more resources than expected, they can get them immediately . A provider or creator of IaaS typically optimizes the environment so that the hardware, the operating system, and automation can support a huge number of workloads.

SERVICE LEVELS : A typical service-level agreement states what the provider has agreed to deliver in terms of availability and response to demand. The service level might, for example, specify that the resources will be available (11) 99.999% of the time and that more resources will be provided dynamically if greater than 80% of any given resource is being used.

RENTAL MODEL : IT infrastructure components are rented for a fee based on the quantity of resources used and how long they’re in use.

Within a private IaaS model, renting takes on a different focus. Although you might not charge each user to access a resource, in the charge-back model, you can allocate usage fees to an individual department based on usage over a week, month, or year. Because of the flexibility of the IaaS model, you can charge more of the budget to heavy users.

LICENSING : The use of public IaaS has led to innovation in licensing and payment models for software you want to run in these cloud environments. Another option is called “pay as you go” (PAYG), which generally integrates the software licenses with the on-demand infrastructure services.

COSTS : As per uses. Ideally, the IaaS provider will have a transparent process for identifying charges incurred by the user.

Advantages : Dynamically choose a CPU, memory, and storage configuration to suit your needs.

Access to vast computing power available on IaaS cloud platform.

Eliminates the need for investment in rarely used IT hardware.

Disadvantages : IaaS  platform model is dependent on internet availability.

Dependence on the availability of virtualization services.

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