Amazon EC2 (Elastic Compute Cloud) is a web service interface that provides resizable compute capacity in the AWS cloud. It is designed for developers to have complete control over web-scaling and computing resources.

EC2 instances can be resized and the number of instances scaled up or down as per our requirement. These instances can be launched in one or more geographical locations or regions, and Availability Zones (AZs). Each region comprises of several AZs at distinct locations, connected by low latency networks in the same region.

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EC2 Components

In AWS EC2, the users must be aware about the EC2 components, their operating systems support, security measures, pricing structures, etc.

Operating System Support

Amazon EC2 supports multiple OS in which we need to pay additional licensing fees like: Red Hat Enterprise, SUSE Enterprise and Oracle Enterprise Linux, UNIX, Windows Server, etc. These OS needs to be implemented in conjunction with Amazon Virtual Private Cloud (VPC).

Security

Users have complete control over the visibility of their AWS account. In AWS EC2, the security systems allow create groups and place running instances into it as per the requirement. You can specify the groups with which other groups may communicate, as well as the groups with which IP subnets on the Internet may talk.

Pricing

AWS offers a variety of pricing options, depending on the type of resources, types of applications and database. It allows the users to configure their resources and compute the charges accordingly.

Fault tolerance

Amazon EC2 allows the users to access its resources to design fault-tolerant applications. EC2 also comprises geographic regions and isolated locations known as availability zones for fault tolerance and stability. It doesn’t share the exact locations of regional data centers for security reasons.

When the users launch an instance, they must select an AMI that’s in the same region where the instance will run. Instances are distributed across multiple availability zones to provide continuous services in failures, and Elastic IP (EIPs) addresses are used to quickly map failed instance addresses to concurrent running instances in other zones to avoid delay in services.

Migration

This service allows the users to move existing applications into EC2. It costs $80.00 per storage device and $2.49 per hour for data loading. This service suits those users having large amount of data to move.

Features of EC2

Here is a list of some of the prominent features of EC2 −

Reliable − Amazon EC2 offers a highly reliable environment where replacement of instances is rapidly possible. Service Level Agreement commitment is 99.9% availability for each Amazon EC2 region.
Designed for Amazon Web Services − Amazon EC2 works fine with Amazon services like Amazon S3, Amazon RDS, Amazon DynamoDB, and Amazon SQS. It provides a complete solution for computing, query processing, and storage across a wide range of applications.
Secure − Amazon EC2 works in Amazon Virtual Private Cloud to provide a secure and robust network to resources.
Flexible Tools − Amazon EC2 provides the tools for developers and system administrators to build failure applications and isolate themselves from common failure situations.
Inexpensive − Amazon EC2 wants us to pay only for the resources that we use. It includes multiple purchase plans such as On-Demand Instances, Reserved Instances, Spot Instances, etc. which we can choose as per our requirement.

How to Use AWS EC2

Step 1 − Sign-in to AWS account and open IAM console by using the following link https://console.aws.amazon.com/iam/.

Step 2 − In the navigation Panel, create/view groups and follow the instructions.

Step 3 − Create IAM user. Choose users in the navigation pane. Then create new users and add users to the groups.

Step 4 − Create a Virtual Private Cloud using the following instructions.

Open the Amazon VPC console by using the following link − https://console.aws.amazon.com/vpc/
Select VPC from the navigation panel. Then select the same region in which we have created key-pair.
Select start VPC wizard on VPC dashboard.
Select VPC configuration page and make sure that VPC with single subnet is selected. The choose Select.
VPC with a single public subnet page will open. Enter the VPC name in the name field and leave other configurations as default.
Select create VPC, then select Ok.

Step 5 − Create WebServerSG security groups and add rules using the following instructions.

On the VPC console, select Security groups in the navigation panel.
Select create security group and fill the required details like group name, name tag, etc.
Select your VPC ID from the menu. Then select yes, create button.
Now a group is created. Select the edit option in the inbound rules tab to create rules.

Step 6 − Launch EC2 instance into VPC using the following instructions.

Open EC2 console by using the following link − https://console.aws.amazon.com/ec2/
Select launch instance option in the dashboard.
A new page will open. Choose Instance Type and provide the configuration. Then select Next: Configure Instance Details.
A new page will open. Select VPC from the network list. Select subnet from the subnet list and leave the other settings as default.
Click Next until the Tag Instances page appears.

Step 7 − On the Tag Instances page, provide a tag with a name to the instances. Select Next: Configure Security Group.

Step 8 − On the Configure Security Group page, choose the Select an existing security group option. Select the WebServerSG group that we created previously, and then choose Review and Launch.

Step 9 − Check Instance details on Review Instance Launch page then click the Launch button.

Step 10 − A pop up dialog box will open. Select an existing key pair or create a new key pair. Then select the acknowledgement check box and click the Launch Instances button.

So, this brings us to the end of blog. This Tecklearn ‘Deep Dive into Amazon EC2’ helps you with commonly asked questions if you are looking out for a job in AWS and Cloud Computing. If you wish to learn AWS and build a career in Cloud Computing domain, then check out our interactive, AWS Solutions Architect Training, that comes with 24*7 support to guide you throughout your learning period. Please find the link for course details:

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What you will Learn in this Course?

Overview of Cloud Computing and AWS

What is Cloud Computing
Definition of Cloud Computing
On Premises Vs Service Models
Advantages and Disadvantages of Cloud Computing
Cloud Computing Providers
Why AWS
What is AWS
AWS Benefits
AWS Services
Traditional Vs AWS Components
AWS Global Infrastructure
AWS Availability Zone
AWS Edge Locations
How to Access the AWS Services
AWS architecture
AWS Management Console
AWS offerings Listing (EC2, VPC, AMI, EBS, ELB, Backup)

Amazon Elastic Compute Cloud (EC2)

Overview of EC2
Elastic IP Vs Public IP
Launching of AWS EC2 instance demo
How to access EC2
EC2 Purchasing Options
Amazon Machine Images (AMI)
EC2 Storage for the Root Device
EC2 Creating AMI
EC2 Instance Types
Auto Scaling
Cost of EC2
Best Practices of EC2
EC2 Resizing
Placement Groups
Amazon Backup and various Concepts
EC2 Demo
Hands On

Networking and Monitoring Services: Amazon Virtual Public Cloud

Virtual Private Cloud (VPC) and its benefits
Default and Non-Default VPC
IP Address
CIDR – Classless Inter-domain Routing
Subnet: Subnet Mask and Subnet Mask Classes
Private and Public Subnet
IPv4 v/s IPv6 – As in AWS Infrastructure
Internet Gateway and Route Tables
Security Group with VPC
Access Control List, NACL and Security Group
NAT Devices: NAT Gateway and NAT Instance
Flow Logs
VPC Peering and its working
VPN and Direct Connect
VPC Limitations
Need for Monitoring Services
AWS CloudWatch and it’s working
AWS Command Line Interface
Use Cases
Hands On

Amazon Storage Services: Elastic Block Storage

What is Storage Services
What is Elastic Block Storage (EBS)
Persistent Storage
EBC Features
EBS Benefits
EBS Types
EBS Pricing
EBS Life Cycle
EBS Snapshot
EBS General Purposed SSD
EBS Provisioned IOPS SSD
EBS Throughput Optimized HDD
EBS Cold HDD
EBS Comparison
EBS Previous Generation Volumes
EBS How Incremental Snapshots Work
EBS Deleting an Amazon EBS Snapshot
EBS Summary
Hands On

Amazon Storage Services: Simple Storage Services (S3)

What is Amazon AWS S3
Simple Storage Services (S3) Advantages
S3 Buckets, Objects, Keys and Endpoints
S3 Data Consistency Model
S3 Transfer Acceleration
S3 Storage Types
S3 Versioning
S3 Life Cycle Management
S3 Data Protection
S3 Cross-Region Replication
S3 Hosting a Static Website
Hands On

Amazon Storage Services

Amazon Glacier Storage
Amazon Storage Gateway
Amazon Snowball (Data Import /Export)
Billing with Amazon CloudWatch
Hands On

AWS Database Services: Relational Database Service (RDS)

Overview of Databases and Relational Database Service (RDS)
What is Amazon RDS
AWS RDS Components
AWS RDS: Interface
AWS RDS: Charges
AWS RDS Multi-AZ: Benefits
AWS RDS Multi-AZ: Failover Process
NoSQL Database: Amazon DynamoDB
Overview of DynamoDB
DynamoDB Benefits
Hands On

AWS Database Services Continued

Data Warehouse: Amazon Redshift
Overview of Amazon Redshift
Redshift Architecture
Amazon Redshift features
In Memory Cache: Amazon ElasticCache
Redis Vs MemCache
Amazon ElasticCache Cluster
Database Migration: AWS Database Migration Service

Load Balancing in AWS

What is Fault Tolerant System
Features of Elastic Load Balancing
What is AWS ELB (Elastic Load Balancer)
Types of Load Balancer: Classic, Application and Network
Classic Load Balancer: Features, Health Check Configuration, Cross-Zone, Connection Draining, Sticky Sessions, Access Logs, Limitation
Application Load Balancer: Features, Application Flow, Limitation
Network Load Balancer
Access Elastic Load Balancing: AWS Management Console, AWS CLI, AWS SDKs, HTTPS Query API

Amazon Route 53

What is Amazon Route 53
Domain Name Registration
Routing Internet Traffic to Resources
Automated check of the health of Resources + Data Pipeline

AWS Identity and Access Management (IAM) – Control user access

Authentication (Who can use) and Authorization (Level of Access)
IAM Policies – JSON Structure
Users, Groups and their Roles
AWS IAM Features
User Sign-in to Account
Switch Role
Role to EC2 Instance
Password Policy
How to Access AWS
Multi-Factor Authentication (MFA)
Permissions and Permission Types
Policies Structure
User Based Policies
Resource Based Policies
Resource Based Permission
Policies Types
Request Flow
Limitations
IAM HTTPS API
Logging IAM Events with AWS CloudTail
Hands On

Amazon CloudWatch

What is Amazon CloudWatch
Features and Benefits
CloudWatch Architecture
Hands On

AWS Auto Scaling

What is AWS Auto Scaling
Auto Scaling Components
Auto Scaling Group
Auto Scaling Launch Configuration
Auto Scaling Benefits
Auto Scaling Lifecycle
Auto Scaling Plans
Manual Scaling
Schedule Scaling
Dynamic Scaling
Auto Scaling Step Adjustment
Auto Scaling Termination Policy
Default Termination Policy
Health Check
Hands On

Amazon Application Services

Elastic BeanStalk
Simple Email Services (SES)
Simple Queue Service (SQS)
Simple Notification Services (SNS)
AWS Lambda
Introduction to Elastic OpWorks
Hands On

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