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Using this framework, you can build as many instances as allowed by your Rapid Access Cloud project and need only a single floating IP. What’s more, some measure of security is gained, as the Security Group rule created in step 2 means access to internal instances is allowed only from the proxy instance.
RAC VPN
Alternatively, you can use the Rapid Access Cloud VPN to access your instances without requiring a public IPv4 addressRefer to Rapid Access Cloud Virtual Private Network for more information.