无法连接到 AWS EC2 实例上的网络服务器

Question

I'm unable to connect to my EC2 instance where I have an apache web server running (also running an Express.js server on a different port). I have updated the security group to allow incoming requests to http and https ports but I continue to get this response in the browser:

This site can’t provide a secure connection
*********** sent an invalid response.
ERR_SSL_PROTOCOL_ERROR

I am able to ssh into my EC2 instance.

Other than ensuring that the correct ports are open and that a service is listening on those ports, is there any configuration needed to setup simple web server on EC2?

• Current security group settings:

• Currently open ports (sudo lsof -i -P -n | grep LISTEN):

There are some similar questions posted but they are either vague or have been left for dead

Answer 1

You need to install mod_ssl to tell apache to serve httpS connections. You can use the default (or self signed certificate) to check the connectivity on port 443. If you need a valid ssl certificate, you can get one for free from Let's Encrypt: https://letsencrypt.org/ You can use CertBOT to auto renew certificates: https://letsencrypt.org/getting-started/