NAT Instance and NAT Gateway

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           NAT Instance and NAT Gateway

NAT Instance:

• NAT instance allows private subnet EC2 instance to get to internet (proxy)
• The NAT instance is configured in Public subnet.
• NAT instance to be assigned to SG.
• Source Destination check must be disabled.

NAT Gateway:

• Its AWS managed service
• NAT Gateway works only on Elastic IP address.
• Cannot be assigned to SG.
• AWS responsible for Security/Patching etc.