What do we use in AWS to keep the same IP address for an EC2 instance, even after restarting it? Because the public IPv4 DNS address keeps changing every time when stopping and starting the instance.

Question

Shruthi J · Accepted Answer

To keep the same public IP address, we should use an Elastic IP which is a static public IPv4 address provided by AWS. It does not change until we manually release it. It can be allocated from the EC2 dashboard and need to associate it with EC2 instance. Once done, instance will keep the same IP even after restarting.

What do we use in AWS to keep the same IP address for an EC2 instance, even after restarting it? Because the public IPv4 DNS address keeps changing every time when stopping and starting the instance.

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