Tag: #ssl
Writing on GPUs, LLMs, MLOps, Kubernetes — and mindset · 9 posts
Decoding the TLS handshake and certificate errors — why the browser works but curl fails
When the browser shows a healthy padlock while only curl and server-side calls fail with a certificate error, the problem is server configuration. The browser downloads the missing intermediate certificate itself through
2026-07-26 · 15 min read #network#tls#ssl#openssl#securityTLS/SSL and PKI Complete Guide — Handshake, Certificate Chain, Cipher Suites, 0-RTT, and the Post-Quantum Era (2025)
Behind the little padlock in the browser address bar lie 30 years of cryptography, trust chains, and protocol evolution. How TLS 1.2 2-RTT became 1.3 1-RTT, how the certificate chain makes you trust a server you have nev
2026-04-15 · 12 min read #tls#ssl#pki#https#certificateNginx Complete Guide 2025: Reverse Proxy, Load Balancing, SSL, Caching & Security
Everything about Nginx! Event-driven architecture, reverse proxy configuration, load balancing (Round Robin/Least Conn/IP Hash), SSL/TLS setup, caching, rate limiting, WebSocket, Docker/K8s integration, and more.
2026-03-24 · 18 min read #nginx#reverse-proxy#load-balancing#ssl#caching[DevOps] Let's Encrypt and Certbot Complete Guide: Free TLS Certificates
A comprehensive guide covering Let's Encrypt ACME protocol mechanics, Certbot installation and certificate issuance, DNS/HTTP challenges, automatic renewal setup, and wildcard certificates.
2026-03-20 · 9 min read #devops#tls#ssl#letsencrypt#certbot[DevOps] Nginx TLS Configuration Complete Guide: PEM/Key Setup and Security Optimization
A comprehensive guide to applying PEM/Key files in Nginx, configuring TLS versions and cipher suites, HSTS, OCSP Stapling, HTTP/2 optimization, and mTLS setup.
2026-03-20 · 11 min read #devops#nginx#tls#ssl#securitySpring Boot Embedded Tomcat Complete Guide: Configuration, Optimization, and Production Tuning
Complete guide to Spring Boot Embedded Tomcat — thread pool, connection timeout, SSL, HTTP/2, compression, access logs, and switching to Undertow/Jetty for production optimization.
2026-03-17 · 8 min read #spring-boot#tomcat#embedded-server#performance#sslSSL Certificate Operations Playbook: Zero-Downtime Renewal and Expiry Prevention
A comprehensive operations playbook covering the entire certificate lifecycle (issuance, deployment, monitoring, renewal, revocation). Covers zero-downtime renewal strategies, Prometheus-based expiry monitoring, incident
2026-03-08 · 21 min read #ssl#certificate#tls#devops#2026-03SSL/TLS Certificate Complete Guide: From Issuance to Auto-Renewal and Troubleshooting
A comprehensive practical guide covering SSL/TLS certificate fundamentals, Let's Encrypt automated issuance, Nginx/AWS environment configuration, certificate auto-renewal, and common error resolution.
2026-03-08 · 13 min read #devops#ssl#tls#certificate#securityNginx Configuration Complete Guide: 15 Essential Topics from Architecture to Production Optimization
From Nginx event-driven architecture and configuration structure to reverse proxy, load balancing, SSL/TLS, caching, rate limiting, security headers, performance tuning, and health checks -- a comprehensive guide to 15 e
2026-03-01 · 33 min read #nginx#reverse-proxy#load-balancing#ssl#tls