Amazon S3 Replication Model | RTC | CORS | MFA Delete | S3 Server Access Logs
Channel: Pythoholic
Date: 27/04/2020

Let's talk about the replication model for S3.
So, replication means making a copy?  Right,
so what is that we can make copies of in S3?
Yes, the objects and S3 provide a replication model for us based on which we can perform replications.

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So, Amazon S3 Replication enables automatic, asynchronous copying of objects across Amazon S3 buckets.
And the Buckets that are configured for object replication can be owned by the same AWS account or by different accounts. 
And You can copy objects between different AWS Regions or within the same Region.

AWS Multi-Factor Authentication (MFA) is a simple best practice that adds an extra layer of protection on top of your username and password.
Along with your credentials, you need authentication code from their AWS MFA device (Virtual MFA Device like Phone or Hardware device).

I believe most of you who have worked with web applications somewhere down the line have face an issue 
something like 
"Access to fetch at "some resource" from the origin "has been blocked by CORS  policy: No Access Control Allow origin header is present on the requested resource.

S3 Server access logging provides detailed records for the requests that are made to a bucket.
And It can also help you learn about your customer base and understand your Amazon S3 bill. and which in turn helps you by taking critical decisions.

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