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Setting up AWS EC2 with Ubuntu, Docker, and a Public IP

Follow these steps to quickly set up a basic server environment on Amazon Cloud (AWS).

Step 1: Log in to AWS Console

Step 2: Create an EC2 Instance

  • From the AWS console, search for and select EC2.
  • In the EC2 Dashboard, click Instances → Launch instances.

Step 3: Select Ubuntu Server

  • Under Name and tags, give your server a recognizable name (e.g., "MyUbuntuServer").
  • Under Application and OS Images (Amazon Machine Image), select Ubuntu Server 22.04 LTS. (or 24.04 LTS)
  • Leave other settings at default unless instructed otherwise.

Step 4: Configure Security Settings

  • Under Network settings, select Create security group.
  • Ensure that at least the following ports are allowed:
    • SSH (22) for secure access to your server.
    • Add custom rules if needed, for example:
      • HTTP (80)
      • HTTPS (443)
  • Click Launch instance.

Step 5: Connect to Your Instance

  • After your instance launches, click on its name to see details.
  • Locate the Public IPv4 address; this is your public IP address.

Step 6: Access Your Instance via SSH

  • Open your terminal or command prompt.
  • Connect using SSH (replace your-key.pem with the path to your downloaded AWS key file, and public-ip-address with your actual public IP):
chmod 400 your-key.pem
ssh -i your-key.pem ubuntu@public-ip-address

Step 7: Install Docker on Ubuntu

Follow Ubuntu | Docker Docs

You’re all set!

You now have:

  • Ubuntu Server 22.04 running on AWS
  • Docker installed
  • A public IP address to access your server remotely

 

Secure Base64 Encoding via Linux Console

Step 1: Open your Linux terminal.

Step 2: Execute the following command (replace api_key and secret_key with your real keys):

echo -n "api_key:secret_key" | base64

Example:
If your keys are:

  • API Key: abc123
  • Secret Key: xyz789

Then run:

echo -n "abc123:xyz789" | base64

Output will look like:

YWJjMTIzOnh5ejc4OQ==

How it works securely:

  • echo -n prevents adding a newline at the end of the text, which ensures correct encoding.
  • base64 is a built-in utility that encodes the data right on your system without internet exposure.

You can then safely use this encoded string as your Basic Auth token:

Authorization: Basic YWJjMTIzOnh5ejc4OQ==

 

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