Introduction to Cloud Computing

 Cloud Computing is a Service Which is provided on  the Internet. Services provide in clouds are servers, storage, database, networking, software etc.  Cloud Computing is becoming popular day by day in last couple of years. Because it save lot of resources in organization and also cost efficient. 

It also solve the cyber security issues of the organizations . because service providers will handle the issues . Examples of Cloud Computing service provider are Microsoft ,  Google, Amazon. 

Cloud Computing provides an alternative to the on-premises datacenter. With an on-premises datacenter, we have to manage everything, such as purchasing and installing hardware, virtualization, installing the operating system, and any other required applications, setting up the network, configuring the firewall, and setting up storage for data. After doing all the set-up, we become responsible for maintaining it through its entire lifecycle.

But if we choose Cloud Computing, a cloud vendor is responsible for the hardware purchase and maintenance. They also provide a wide variety of software and platform as a service. We can take any required services on rent. The cloud computing services will be charged based on usage.

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• Cost: It reduces the huge capital costs of buying hardware and software.
• Speed: Resources can be accessed in minutes, typically within a few clicks.
• Scalability: We can increase or decrease the requirement of resources according to the business requirements.
• Productivity: While using cloud computing, we put less operational effort. We do not need to apply patching, as well as no need to maintain hardware and software. So, in this way, the IT team can be more productive and focus on achieving business goals.
• Reliability: Backup and recovery of data are less expensive and very fast for business continuity.
• Security: Many cloud vendors offer a broad set of policies, technologies, and controls that strengthen our data security.

Types of Cloud Computing

• Public Cloud: The cloud resources that are owned and operated by a third-party cloud service provider are termed as public clouds. It delivers computing resources such as servers, software, and storage over the internet
• Private Cloud: The cloud computing resources that are exclusively used inside a single business or organization are termed as a private cloud. A private cloud may physically be located on the company’s on-site datacentre or hosted by a third-party service provider.
• Hybrid Cloud: It is the combination of public and private clouds, which is bounded together by technology that allows data applications to be shared between them. Hybrid cloud provides flexibility and more deployment options to the business.

Types of Cloud Services

1. Infrastructure as a Service (IaaS): In IaaS, we can rent IT infrastructures like servers and virtual machines (VMs), storage, networks, operating systems from a cloud service vendor. We can create VM running Windows or Linux and install anything we want on it. Using IaaS, we don’t need to care about the hardware or virtualization software, but other than that, we do have to manage everything else. Using IaaS, we get maximum flexibility, but still, we need to put more effort into maintenance.
2. Platform as a Service (PaaS): This service provides an on-demand environment for developing, testing, delivering, and managing software applications. The developer is responsible for the application, and the PaaS vendor provides the ability to deploy and run it. Using PaaS, the flexibility gets reduce, but the management of the environment is taken care of by the cloud vendors.
3. Software as a Service (SaaS): It provides a centrally hosted and managed software services to the end-users. It delivers software over the internet, on-demand, and typically on a subscription basis. E.g., Microsoft One Drive, Dropbox, WordPress, Office 365, and Amazon Kindle. SaaS is used to minimize the operational cost to the maximum extent.

AWS Training and Certification | Learn from experts

Amazon Web Services (AWS)

AWS is the most trusted and the fastest cloud computing service provider which currently has more than 1 million active customers which includes well known companies such as Facebook, Netflix, Twitter and Linkedin. In addition, it is cost efficient and user-friendly as well that’s why most companies use it ranging from small businesses to large corporations.

Cloud Computing means using remote servers on the internet for various purposes such as storing, managing and processing the data. In cloud computing, you don’t have to purchase physical data servers, instead, you can rent the computing services through platforms such as AWS.

Types of Cloud Computing:

PAAS (Platform as a Service): This allows developers to create apps and collaborate on projects without having to invest in infrastructure.

SAAS (Software as a Service): This allows businesses to use the software without having to buy it which decreases the costs significantly. As the software is already installed on the cloud server, it can be easily installed which also saves time. 

IAAS (Infrastructure as a Service): This allows the users to rent networking services, storage space, etc. IAAS is highly flexible and it helps you manage your IT resources. It's just like the existing IT resources that are very prevalent among the IT departments and developers.

Benefits of AWS:

• AWS has the most trusted operational expertise: 

For more than 15 years, AWS has been providing its services to a large number of clients worldwide. AWS is currently the most well known and trusted cloud computing service provider that has the most dynamic customer base.

•   AWS is Cost Effective: 

As AWS does not have any long-term contracts or up-front commitments, any company whether big or small can use it. The only payment that is needed is for the computer power, storage, etc.

• AWS is easy to use: 

 AWS is user-friendly, therefore, you don’t need to be an expert to operate it. It has been made in such a way that it is fast, secure and easy for the users.

• AWS is flexible:

AWS gives us the flexibility to choose from various services such as operating system, programming language, etc. It also provides us with a virtual environment in which you can install the applications and services that the application requires. This makes the process of migration of existing apps very simple while keeping the ability to create new ones.

Here are some commonly asked questions about AWS: 

How useful is AWS Certification?

Getting an AWS certification is not just good for the CV but it also amplifies the number of opportunities and the salary package. More than 1 million active customers use AWS which includes well known companies such as Facebook, Netflix, Twitter and Linkedin hence, the demand for certified AWS experts has been increasing. AWS certification is very beneficial for beginners as getting an industry recognised certificate will make you a professional in your field and help you land a job with a handsome salary. 

Can beginners do AWS Certification?

AWS certification is very beneficial for beginners as getting an industry recognised certificate will make you a professional in your field and help you land a job with a handsome salary. If you are interested in learning about AWS, then your educational background does not matter, you could be from a science or a commerce field and you can still do very well as it is beginner-friendly.

What are the available AWS Certifications? 

• Fundamental : This certification is for beginners as you get introduced to Amazon web service and you get the fundamental knowledge about how a serverless web service works. This certification is for 6 months after which you will become a Cloud practitioner.

• Associate : After completing this one year certification, you can become AWS Certified Solutions Associate architect, SysOps Administrator Associate or a Developer Associate. Here you will know how to use AWS in a much more practical sense.

• Professional : This two year certification can give you an opportunity to become a certified Solutions Architect Professional or a DevOps Engineer professional. Here you will learn how to design and operate in AWS Cloud. 

How many clients does AWS has?

AWS currently has more than 1 million active customers which includes well known companies such as Facebook, Netflix, Twitter and Linkedin. It has the most dynamic customer base ranging from small businesses to large corporations.

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AWS Training in Chandigarh

Amazon Web Services (AWS), a platform provided by Amazon.com Inc (AMZN), has become a major part of a large e-commerce portfolio. In the first quarter of 2020, AWS delivered a record $ 10 billion, accounting for 13.5% of Amazon's total revenue. Having grown steadily over 30 percent distance over the past few months, AWS is a precursor to other computer cloud platforms such as the Microsoft Azure competition. So what is AWS and why is it so profitable and successful for Amazon?

IMPORTANT NOTES
As a leading cloud platform, Amazon Web Services (AWS) is Amazon's main revenue driver.
By 2020, AWS breaks the $ 10 billion business record.
Amazon controls more than a third of the cloud market, almost doubling its nearest competitor.
What Is AWS Really About?
AWS is made up of many cloud computing products and services. Amazon's most profitable category offers servers, storage, network connectivity, remote computer, email, mobile enhancement, and security. AWS may have three main products: EC2, Amazon machine service, Glacier, low-cost cloud service, and S3, Amazon's storage system. AWS is so big and exist in the computer world that it outperforms its competitors. As of February 2020, another independent analyst reported that AWS had a third of the market at 32.4 percent, followed by Azure at 17.6 percent, and Google Cloud at 6%.

AWS has 76 available locations where its servers are located. These service-allocated regions are segregated to allow users to place technical limitations on their services (if they so choose), but also to provide security by separating the visible areas where the data is held. In total, AWS ranks 245 countries and territories.

Cost Saving
Jeff Bezos compared Amazon Web Services to aid companies in the early 1900s. One hundred years ago, a factory that needed electricity was to build its own power plant, and as factories were able to buy electricity in a public place, the demand for inexpensive private power plants decreased. AWS is trying to move companies away from real computer technology to the cloud.

Traditionally, companies that require large amounts of storage may need to physically build storage and storage space. Cloud storage can mean signing an expensive contract for a large space space a company can “grow into”. Building or buying too little can be dangerous if the business is moving and expensive if not.

The same applies to the gathering of energy. Companies that receive high-speed traffic can end up purchasing capacity to support their business at peak times. On more than one occasion - in May for tax census for example - the power of computers incurred unspent funds, but cost a fortune.

With AWS, companies pay for what they use. There are no major costs for building a storage system and there is no need to measure usage. AWS customers use what they need and their costs are taken automatically and appropriately.
It looks and can not be changed
As AWS costs change with customer service, startups and small businesses can see the obvious benefits of using Amazon for their computer needs. AWS is good at building a business from the ground up as it provides all the tools needed by companies to start with the cloud. For existing companies, Amazon provides low-cost migration services so that your existing infrastructure can be seamlessly transferred to AWS.
As the company grows, AWS provides resources to expand and as the business model allows for flexible use, customers will never need to spend time thinking about whether they need to re-evaluate the use of their computer. Without budget reasons, companies can 'stop and forget' all their computer needs.
Security & Trust
In hindsight, Amazon Web Services is much safer than a company hosting its own website or storage. AWS currently has a lot of details
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AWS Training chandigarh

                                                                  

We CNT Technologies is starting a series of blogs on AWS. Whether you are

looking to learn about cloud computing for your career or for interesting purposes.

we are sure that you will find this article helpful 

Let us Begin with cloud computing 

AWS:

 AWS server is a secured cloud service provided by amazon for offering computing power,

database storage, content delivery, and other functionality to help business growth.

Amazon Web Services is a secured cloud services platform,which offer his computing power

,storage for database, content delivery, and other functionality to help businesses to

grow and scale.

  AWS cloud server allow you to do following things

• AWS allow you to Run web and application servers in the cloud .To host dynamic websites.
• AWS store  securely all your files on the cloud. So you can access them from anywhere.
• AWS cloud alllow you to Use managed databases like mysql, postgresql, Oracle or sql
• Server to store information.
•  Deliver static and dynamic files quickly around the world using a CDN
•  Send bulk emails to your customers.
•  Now that you know what you can do with AWS, let's have an view of various AWS services.

 Terminologies used in AWS

 Region —

A region is geographical area which two or more zones.

 Availability Zone —

it is a data center.

 Edge Location —

These are cdn endpoints for cloud front.

 EC2 —

These are only just the virtual machine which is running on

cloud.you have os level control on virtual machines. you can run any

services as you want on virtual machines.

 LightSail —

If you do not have any prior experience with AWS then this service is

for you. It automatically deploys and manages to compute, storage and networking

capabilities required to run your applications.

 ECS —

It is a highly expendable container service to allow you to run the Docker containers in

the cloud.

 EKS —

Allows you to use kubernete on AWS cloud without installing and managing your own

Kubernete control plane. It is a relatively new service.

 Lambda —

AWS’s server less technology allows you to run functions in the cloud servers. It’s a

high cost saver as you pay only when your functions are executing.

 Batch —

It enable you to easily and efficiently run batch computing loads of any scale

on AWS cloud using amazon Ec2 and Ec2 spot fleet.

 Elastic Beanstalk —

Allows automated deployment and provisioning of resources like

a highly scalable production website.

 S3 —

storage service of AWS in which we can store objects

like files, folders, images, documents, songs, etc. It cannot be used to install software,

games or Operating systems.

 EFS —

Provides file storage for use with your Ec2 instances. It uses the NFSv4 protocol

and can be bemused concurrently by thousands of instances.

 Glacier —

It is very cost effective to store data for a long term as compare to other

cloud services.

 Storage Gateway —

It is a virtual machine that you install on your on-premise servers.

Your on-premise data can be backed up to AWS providing more durability.

 RDS —

Allows you to run relational databases like

MySqL, MariaDB, PostgreSQL, Oracle or SQL Server. These databases are fully

managed by AWS like installing antivirus and patches.

 DynamoDB —

It is a highly scalable, high-performance NoSQL database. It provides

single-digit millisecond latency at any scale.

 Elasticache —

It is a way of caching data inside the cloud server. It can be used to take

a load off of your database by caching the most frequent queries.

 Neptune —

It has been launched recently. It is a fast, reliable and scalable graph database

service.

 RedShift —

It is AWS’s data warehousing solution that can be used to run complex

OLAP queries.

 SMS —

It allows you to migrate on-site servers to AWS easily and quickly.

Stay connected with us for next tutorials.

Python Programme for generating 12 digit strong password

 

Cyber crime is increasing day by day. weak password  is not good for devices which

demands high confidentiality, privacy and security of user credentials. It is true

that people find it difficult make a secure password which is strong enough to prevent

cyber criminals to grab it.

In this article we will show how to create strong password consisting  numbers,

special-character, upper case, lower case char. which was unpredictable  for

crackers can’t be memorised easily.

In this article we show you to  make python programme for generating a secure password.

The component that are used in password creation programme are:

Random Module:

Random module is used for generating random number in in python language, with

the help of random module we can generate random number and character in a programme

when we need it.

Array:

Random method is used to select at least one character from each arrays.

Programme:1 

programme2:

In this programme we use random method to select at least one character from

each array of characters. In this code we take 3 arrays consisting of uppercase

and lowercase character and 3rd one with special characters. Then combined

all characters array to form a single array. After that uses the random method

to select at least one character from all three arrays. Now that we are sure that 

we have at least one character from each array. Then traverse the password into

array and shuffle b/w characters to prevent it from having a consistent pattern.

if it is consistent then beginning of password is predictable.

Traverse the password  array and append the characters to form a strong password.

Autthor:Preenu Mittan

Trainer Python

Cnt Technologies
Contact us: python Training in Chandigarh