Use case for amazon rds make sense?

I have been planning on hosting my app on an aws linux box because I was informed that windows is not good is for commercial web apps. But I am running into what I think is a insurmountable problem with the port (mostly dealing with CORs). So I am considering a different plan. Instead of keeping my systems data on a wamp based mysql, I could keep it on a remote copy of rds. In that way I could have two small windows instances, and if one goes down, all the data is kept in a separate place, so it doesn't matter which of the two running versions of the software is being used. An occasional reboot wouldn't be a biggie.

Btw, the mysql database will not get too large since I am already offloading user data weekly to dynamodb which is an aws nonsql database.

Question? Am I over thinking this?

proof that an old dog can learn new tricks

I am not expert here, but it sounds intelligent. Consider, too, that RDS has its own High Availability, https://docs.aws.amazon.com/AmazonRDS/la...ltiAZ.html

Thanks Ken. I am going to try to get the Linux server up and going after I get some advice on what is wrong. I spent 3-4 hours on Friday night trying everything I could think of. One possible difference is that the Linux server is http, not https like the windows server. I can fix that if I had some inkling that it was the issue.

This app is very database dependant and I'm concerned that it will slowdown to a crawl if I have to go cross server for each read or write.

proof that an old dog can learn new tricks

Can  you put the Linux servers in the same AWS AZ?  That should keep the two machines "close".  And I think you can set up some kind of dedicated networking between AWS tools.