I’m in confusion with key files generated with our beloved LetsEncrypt.
We will get 4 .pem files,
privkey.pem is clear enough to understand that it is Private key. But I don’t understand,
- what are the other files ?
- why it is for or for which we should use that ?
In AWS Elastic Load balancer, SSL Certificate configuration asks for
1. Private key
2. Public Key
3. Chain (optional)
Which .pem file I should use for Public key, fullchain.pem or chain.pem or cert.pem ? Could anyone help me understanding this ?