How SSL/TLS Works: The Handshake Explained
5d ago · 13 min read · TLDR: SSL (now TLS) secures data between your browser and a server. It uses Asymmetric Encryption (Public/Private keys) once — to safely exchange a fast Symmetric Session Key. Everything after the handshake is encrypted with the session key. 📖 The...
Join discussionYour OCI Let's Encrypt automation is probably broken right now - here's why and how to fix it
Mar 5 · 4 min read · If you're running the excellent Let's Encrypt automation for Oracle Cloud Infrastructure built by Scotti Fletcher (full details in his original post here), there's a good chance your certificates have
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ForgeRock DS PKIX Path Building Failed: Complete Certificate Troubleshooting Guide
Feb 22 · 16 min read · The PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target error is one of the most common issues when deploying ForgeRock Directory Services (DS) in producti...
Join discussionThe Path to Automated TLS - Part 3 Automated Certificates with Cert-Manager
Feb 6 · 6 min read · Introduction: Locking it Down - From HTTP to HTTPS In the preceding chapters, we established the networking foundation for a production-grade bare-metal Kubernetes platform. In Chapter 1, we implemented MetalLB to provide stable LoadBalancer IPs, so...
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When Logs Weren’t Enough: Setting Up Prometheus Behind Traefik (TLS)
Jan 30 · 5 min read · At some point, logs alone stop being enough. You start seeing short spikes in CPU, random latency jumps, or brief outages that don’t leave a clear trace in the logs. That’s where real monitoring pays off: numbers, charts, history, and alerts. This gu...
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From HTTP to HTTPS: How TLS Secures Your Website
Jan 30 · 11 min read · Issue with HTTP Let's understand via an example. Suppose you want to login to your bank account website—you enter your username and password, and send a request to the server. Now, suppose a hacker sniffs the packets in between (how packet sniffing w...
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How DNS Resolution Works
Jan 27 · 4 min read · DNS Explained with dig: From Root Servers to google.com What is DNS and Why Name Resolution Exists DNS (Domain Name System) is often called the internet's phonebook. Humans remember names like: google.com amazon.com Computers communicate using: I...
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Building own traffic load balancer
Jan 18 · 6 min read · I’m a network expert, and from time to time I need to build lab environments to demonstrate specific networking technologies. Sometimes I prefer not to rely on vendor-specific products, but to build simple implementations from scratch, as this often ...
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