- Lab
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Libraries: If you want this lab, consider one of these libraries.
- Cloud
Using an ALB behind Amazon CloudFront and Using a Custom HTTP Header to Control Access
In this hands-on lab you will work on implementing a more secure web application architecture by leveraging the following AWS services to further restrict public access: Amazon CloudFront, Application Load Balancer (ALB), and Amazon EC2. You will work with the above services in order to implement a new CDN in front of an internet-facing ALB to improve performance. You will also leverage the ability to pass custom headers to the origin server (the ALB) to restrict access to the hosted web application. The ALB will only allow traffic that contains the secret HTTP header value, which allows you to drop all traffic that is sent directly to the ALB itself.
Lab Info
Table of Contents
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Challenge
Create the CloudFront Distribution
Create a new CloudFront distribution, using the existing Application Load Balancer (ALB) as the origin server.
Once the distribution is deployed, test that you can access the web application through it.
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Challenge
Update the CloudFront Distribution to Contain the HTTP Header
After verified to be working, you now need to edit the distribution to add a custom header to all origin server calls. Below is the information:
- Header Name:
x-Custom-Header - Header Value: random string of your choice
NOTE: Be sure to copy the Header Value for later
- Header Name:
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Challenge
Update the ALB Listener Rules
Add a new rule to the ALB listener to restrict access to calls that only contain the
X-Custom-SecretHTTP header with the correct header value that you set previously.Ensure this rule is processed first!
Real skill practice before real-world application
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