In our previous article on " How HTTPS Works ?", we discussed the concepts of HTTPS, TCP, TLS, and SNI. We learned that servers have their own keypair and certificate to facilitate the TLS handshake. In this article, we will explore how to create a server certificate, which is essential for proving the identity of a server in real-world scenarios. In the real world, every component of a network or service is assigned a Fully Qualified Domain Name (FQDN) or hostname and is equ