Cloud Computing Service Models

In this blog we will explore the three different service models of cloud computing.

IaaS – Infrastructure as Service
Paas – Platform as Service
SaaS – Software as Service

Infrastructure as Service

When user/business is only interested to purchase infrastructure like physical machines, storage, server, network etc. So instead of buying & setting up on-premise hardware, go for Iaas from cloud service provider.

This type of model allows user to purchase computing resources such as server, storage & networking on-demand from service provider. Rest of the thing will be manage by user/business like OS, applications environment, runtime, application data etc.

Common Service Providers: Oracle Cloud, AWS, Azure, GCP.

Platform as Service

When user/business is interested to purchase a platform where they can start develop, manage & operate applications.

For example you want to develop a web application. For that you need a platform where you can write your code, execute the code & database to store the application data. So instead of taking purchasing Iaas and setup everything else by own. You can go with the option of Paas i.e. Iaas + software required to build application.

Enable user/business to focus on development instead of setting up the infra required to build that application. User just have to manage its application, rest of the things manage by service provider.

Software as Service

Cloud based software available over the internet. User can avail the services by purchasing the license/subscription. These application completely managed by the service providers. User does not have to worry about Infrastructure, runtime environment or any application code upgrade.

Best Saas software example: Salesforce.com, JIRA, Netflix, Dropbox, Slack etc.

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Connecting MySQL DB Instance present on AWS Cloud

Folks,

For creation of any Amazon RDS DB Instance (Free Tier), kindly visit this blog: Link

In this blog we will learn how to connect MySQL Database present on AWS Cloud.

Here is my MySQL DB Instance in “available” Status. Please note the End Point, which is basically the HOST.

Step for adding new Inbound Rule for allowing connection on port 3306.

Select MySQL Instance & Click on “Instance Actions“->”See Details“.

After that click on “Security Groups“.

Now click on the “Inbound Rules” in Security Groups page.

Create a Inbound Rule for Type: MYSQL, Protocol: TCP , Port: 3306 Source: Anywhere. So that you can connect this instance from any machine. After creation of rule click on Save.

Security Group is basically allowing the connections on the port.

After Saving Inbound Rule. Go to RDS Dashboard.

Now MySQL Instance is ready to connect & use it.

Steps for connecting MySQL Database: Using CMD

Install MySQL Server on your machine. Copy the location on bin folder in program files.

Also check your firewall settings for port 3306.

Also check the MySQL service is running properly or not.

Open Command Prompt: Use this command: cd <bin folder location> then Press Enter.

Example: cd C:\Program Files\MySQL\MySQL Server 5.1\bin

Now you are in bin folder.

Use below command in cmd & it will ask for password.

mysql – h <host> -P <port> – u <username> – p

Where <host>: Your End Point, <post>:3306, <username>: Master username

Now we are connected to the MySQL DB Instance.

Steps for connecting MySQL Database: Using MySQL GUI

I’m using SQLyog GUI. Please provide below details.

Provide your password & test the connection.

Click on connect to connect the database.

Now we are connected to the MySQL DB Instance.

Thanks!

Happy Learning!

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Oracle DB on Cloud (AWS Free Tier)

Folks,

AWS Free Tier (Link), the Amazon RDS Free Tier helps us to get started with a database instance in the cloud. Free for 12 months starting with the date on which we create our AWS account.

We can use this to develop new applications or simply gain hands-on experience with Cloud Computing. It is easy to set up, operate, and scale DB.

Database Available:- MySQL, MariaDB, PostgreSQL, Oracle & SQL Server.