Why Developers Should Use Elastic IP on AWS (And How to Do It)

What is an Elastic IP? An Elastic IP (EIP) is a static IPv4 address provided by AWS. Once you allocate it and bind it to your EC2 instance, it remains constant — no matter how many times you stop, reboot, or restart the instance. ✅ Why Should Developers Use Elastic IP? Your IP Never Changes Without Elastic IP: You get a new public IP every time your EC2 instance restarts. You have to update your frontend, Postman, or any API integrations over and over. With Elastic IP: Your server gets a permanent public IP. Clean and hassle-free. ⚙️ How to Allocate and Use Elastic IP Here’s a step-by-step guide: Go to your EC2 Dashboard. In the left menu, click Elastic IPs. Click Allocate Elastic IP address. Choose “Amazon’s pool of IPv4 addresses”, then click Allocate. After allocation, select the new IP → click Actions > Associate Elastic IP. Choose your running EC2 instance and confirm. That’s it!

Apr 9, 2025 - 17:36
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Why Developers Should Use Elastic IP on AWS (And How to Do It)

What is an Elastic IP?

An Elastic IP (EIP) is a static IPv4 address provided by AWS. Once you allocate it and bind it to your EC2 instance, it remains constant — no matter how many times you stop, reboot, or restart the instance.

✅ Why Should Developers Use Elastic IP?

  1. Your IP Never Changes Without Elastic IP:

You get a new public IP every time your EC2 instance restarts.

You have to update your frontend, Postman, or any API integrations over and over.

With Elastic IP:

Your server gets a permanent public IP. Clean and hassle-free.

⚙️ How to Allocate and Use Elastic IP

Here’s a step-by-step guide:

Go to your EC2 Dashboard.

In the left menu, click Elastic IPs.

Click Allocate Elastic IP address.

Choose “Amazon’s pool of IPv4 addresses”, then click Allocate.

After allocation, select the new IP → click Actions > Associate Elastic IP.

Choose your running EC2 instance and confirm.

That’s it!