CloudFront Content Delivery Network (CDN) in AWS

Posted: April 16, 2017 in Amazon Web Services (AWS)

Content Delivery Network (CDN) is a system that delivers web content to users based on geographical location.When user first time asks for content,it’s downloaded to Edge Location (location where content will be downloaded),all subsequent download request will go to Edge Location.Windows Branch Cache would be considered as analogy.

From AWS console click CloudFront,under Network & Content Delivery

 

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Click create Distribution

 

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We have 2 methods:

Web and RTMP (streaming media)

 

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Click Origin Domain Name,all options will be shown-choose bucket which you want to distribute (cache)

 

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Origin path:specify folders/subfolders in bucket

Restrict bucket access-Yes-force using CloudFront URL

Origin Access Identity –creates new user and applies permissions to that user

Grant Read Permissions on Bucket-Yes

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GET, HEAD, OPTIONS, PUT, POST, PATCH, DELETE – allows upload content to edge location

TTL-how long content will be cached on Edge Location

If cached content is removed manually, you’ll be charged

 

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When done configuring click Create Distribution

Then click Distributions

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Deployement takes some time

 

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Remove permissions from file in Bucket

 

 

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As expected, access is denied now

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Now go to Distribution we just created:

Services-Cloudfront-click on CloudFront Distribution-Copy Domain Name

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Now go to bucket file-properties-click on download link again

replace https://s3-sa-east-1.amazonaws.com/cdntestbucket2017/aws.docx

with http://d1x295lm4zxiz1.cloudfront.net/aws.docx

Using CloudFront URL instead S3 URL we can access bucket file.

 

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