Introduction
You have probably heard about Amazon EC2 if you are new to the world of cloud computing. However, what is it?
To put it simply, Amazon EC2 (Elastic Compute Cloud) enables you to run virtual servers in the cloud that are affordable, scalable, and available whenever you need them. It is one of AWS’s primary services and supports everything from enterprise-level apps to startups.
We’ll explain what Amazon EC2 is, how it functions, why it matters, and how to start your first EC2 instance in this blog.
What is Amazon EC2?
One web service that offers scalable computing power in the cloud is Amazon EC2. It is intended to simplify web-scale cloud computing for companies and developers.
Imagine an EC2 instance, which is a virtual machine that resides in AWS’s data centers but can be configured and controlled similarly to a desktop or server.
Key Features of EC2
- On-Demand Virtual Servers
- Multiple OS Support (Linux, Windows, Ubuntu, etc.)
- Elastic IP Addresses
- Auto Scaling and Load Balancing
- Custom Instance Types (CPU, RAM, Storage)
- Secure Access with SSH and IAM Roles
Why Use Amazon EC2?
Scalability: Adapt instantly to changes in workload or traffic. Cost-effective: No upfront hardware costs; only pay for what you use. Global Availability: Start instances across several availability zones and geographical locations. Adaptable: Select the OS, storage, and instance type based on your requirements. Dependable: Constructed on a redundant and secure infrastructure.
How to Launch an EC2 Instance (Step-by-Step)
Here’s how you can create your first virtual machine using EC2:
- Log in to AWS Console and go to EC2 Dashboard.
- Click on Launch Instance.
- Choose an Amazon Machine Image (AMI) (e.g., Amazon Linux or Ubuntu).
- Choose an Instance Type (e.g., t2.micro – Free Tier eligible).
- Configure instance details, add storage if needed.
- Set up security group (allow SSH port 22 for remote access).
- Review and click Launch.
- Download the key pair (.pem file) to SSH into your instance.
Congrats! You just launched your first AWS EC2 virtual server.
Common Use Cases of Amazon EC2
- Web application and website hosting
- Utilizing backend APIs
- Automation and batch processing
- Environments for testing and development
- Microservices and game servers
- Training and inference for machine learning
Amazon EC2 Pricing Models
- On-Demand Instances – Pay per hour/second with no long-term commitments.
- Reserved Instances – Save up to 75% for 1 or 3-year term.
- Spot Instances – Bid for unused capacity at massive discounts.
- Savings Plans – Flexible pricing based on compute usage.
Tip: Start with the Free Tier (750 hours/month of t2.micro or t3.micro for 12 months).
EC2 Security Best Practices
- Use Key Pairs to SSH securely
- Never expose port 22 to everyone (0.0.0.0/0)
- Use IAM Roles instead of storing AWS credentials on instances
- Enable CloudWatch for real-time monitoring
- Apply Security Groups like virtual firewalls
EC2 vs Lambda: What’s the Difference?
| Feature | EC2 | Lambda |
|---|---|---|
| Compute Type | Virtual Server (Always On) | Serverless (Event-driven) |
| Pricing | Pay per hour/second | Pay per execution/memory |
| Control | Full control over OS & apps | Minimal control, just code |
| Use Case | Long-running apps | Microservices, triggers |
Final Thoughts
The foundation of cloud computing on AWS is Amazon EC2. Without having to worry about maintaining actual servers, EC2 provides you with the flexibility and scalability you require for high-performance computing tasks, website hosting, and app development.
Are you prepared to manage your own virtual server? Take a bold leap into the cloud by launching your own EC2 instance right now.
FAQs: What People Ask About Amazon EC2
Q1: What is an EC2 instance?
An EC2 instance is a virtual server that runs applications in the AWS cloud.
Q2: Is EC2 part of AWS Free Tier?
Yes, AWS offers 750 hours/month of t2.micro or t3.micro instance usage for 12 months.
Q3: How can I get to my instance of EC2?
use the.pem key file that was supplied at launch and an SSH client.
Q4: Can I stop and restart my instance?
Yes, EC2 instances can be stopped, restarted, or terminated at any time.
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