Elastic IP

Amazon defines Elastic IP in this way – An Elastic IP address is a public IP address, which is reachable from the Internet. If your instance does not have a public IP address, you can associate an Elastic IP address with your instance to enable communication with the Internet; for example, to connect to your instance from your local computer.

To connect to Instances, from outside the Cloud provider, we connect using the Elastic IP address.

Elastic IP
Elastic IP

For Amazon, please refer this http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/elastic-ip-addresses-eip.html for Linux and this http://docs.aws.amazon.com/AWSEC2/latest/WindowsGuide/elastic-ip-addresses-eip.html for Windows.

Elastic IP - Add Amazon
Elastic IP – Add Amazon

Region support depends on the cloud provider.

Elastic IP - Add Amazon - Region
Elastic IP – Add Amazon – Region

Elastic IP can also be added for Azure.

Elastic IP - Add Azure
Elastic IP – Add Azure

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