Getting Healthcheck failure for Target group with error code 403

Question

We are trying to convert http to https using Application Load Balancer, on Unix machine. We have an instance that's running healthy. Under Load Balancer target group, we are getting healthcheck error. Route 53 responds fine with UDP Protocall. How do we solve it?

Answer

Yes, we are placing necessary content onto healthcheck path. it's an HTML file /AWShealthcheck.html and when you post the url for healthcheck file, it works.

When I check my domain on www.whatsmydns.net it returns Public IP, related to the EC2 instance. When I type my domain on a browser, it adds https in the front. however, it times out.

We also created a Healthcheck using Route53 and that's also failing.

Answer

Hello.  
Are you placing the necessary contents in EC2 to respond to the health check path?  
For example, the health check will fail if there are no files in "/var/www/html/" for the default Apache document root.  
Check if a file such as "index.html" exists in the health check path.

Getting Healthcheck failure for Target group with error code 403

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