May 12, 2024, 9:19 p.m. | Collins Adom Baffour

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Introduction

When it comes to securing resources within an AWS Virtual Private Cloud (VPC), both Security Groups and Network Access Control Lists (NACLs) play vital roles. However, they operate at different layers of the network stack and serve distinct purposes. Let's explore the differences between Security Groups and NACLs:





Security Groups






Operational Layer


Operates at the Instance Level: Security Groups are stateful firewalls that operate at the instance level. They control inbound and outbound traffic for individual EC2 instances, …

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