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Step‑by‑step guide to create a Diffie‑Hellman parameter file with OpenSSL, set proper permissions, reference it in Nginx or Apache, and verify the TLS server loads it successfully.
YunoHost can issue and renew Let's Encrypt certificates per app automatically — if DNS, port 80, and domain declarations line up. A decision guide with concrete validation steps.
Learn how to enforce client‑certificate authentication on ngrok HTTP and TCP tunnels using the built‑in mTLS feature, with a step‑by‑step example and notes on latency and certificate renewal.
SSL_ERROR_SYSCALL is a symptom, not a cause. Use openssl s_client to isolate TLS version mismatches, cipher gaps, broken certificate chains, and middlebox interference in minutes.
A step‑by‑step diagnostic guide for OpenSSL TLS certificate verification failures. Identify chain, trust store, hostname, and time issues, run targeted commands, and apply fixes without disabling security.
A step‑by‑step diagnostic guide for TLS certificate chain verification failures using OpenSSL s_client and verify, with a cause table, ordered checks, fixes, and escalation paths.
Learn how to create a secure HTTP/2 server that serves static assets and automatically falls back to HTTP/1.1 for unsupported clients using Node.js built‑in modules.
Learn how to enable HTTP/2 in Apache by loading mod_http2, adding a Protocols directive inside a TLS virtual host, and verifying the negotiation with curl or browser tools.
Enable HTTP/2 in a Ballerina service by configuring TLS, setting the server protocol to http2, and verifying negotiation with curl and runtime logs. The guide covers prerequisites, step‑by‑step configuration, expected checks, and fallback handling.
openssl
yunohost
ngrok
nodejs
apache
ballerina