The server wouldn’t come online. Packets hit the port, but every handshake died. The culprit was the TLS configuration.
MVP TLS configuration is the fastest path to secure connections without drowning in options. It means stripping TLS setup to the essentials—no dead weight, no guesswork—yet keeping perfect forward secrecy, modern cipher suites, and proper certificate handling.
Start by enabling TLS 1.2 and TLS 1.3. Disable all older versions; they are insecure and obsolete. Choose strong cipher suites: for most setups, TLS_AES_256_GCM_SHA384 and TLS_CHACHA20_POLY1305_SHA256 should be present. Avoid RSA key exchange; use ECDHE for ephemeral keys.
Certificates are the backbone. Use an automated process to issue and renew them. Let’s Encrypt with ACME clients is standard. Store private keys with strict file permissions and never embed them in code.