AWS Certified Solutions Architect - Associate (SAA-C02)

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NACL – Outbound Rules

At 9:43 he displays the outbound rules. I question if ports 80 (rule 100) and 22 (rule 200) are really required? Shouldn’t these be covered with the rule 300? The return traffic destination is the ephemeral ports – right?


The Ephemeral Port documentation on AWS answers this. The reason for the rule is rather because of the devices that are sending request/responses back to Public facing instances. You may read more here – &

1 Answers

yes I think that Azure didn’t get the point, I agree wit you @2ndwind

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