From the course: AWS Essential Training for Administrators

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Elastic IP and elastic network interface

Elastic IP and elastic network interface - Amazon Web Services (AWS) Tutorial

From the course: AWS Essential Training for Administrators

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Elastic IP and elastic network interface

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- [Instructor] When you stop and start an EC2 instance, it's public IP address changes. This can be an issue for administrators as it breaks any services that rely on a static address. This can be solved using elastic IP addresses. An elastic IP is a static public IPv4 address that you can allocate to your AWS account. If you're running a public-facing web server or an application that requires a consistent IP address for DNS records, an elastic IP provides a stable address. You can also use elastic IP addresses to mask failures. If an EC2 instance fails, you can quickly reassociate the elastic IP to a standby instance, restoring services. Elastic IPs incur a small hourly charge when not associated with a running instance, so release them when you no longer need them. To use an elastic IP, you will need to allocate one to your account. Once allocated, you can associate it with an instance. To do so, select the elastic IP,…

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