#tls-certificate

From Manual TLS Certificate Management to Automatic Rotation in Kubernetes Using cert-manager and…

One of the recurring operational challenges in Kubernetes is managing TLS certificates across multiple namespaces. As clusters grow and…

The SSL and TLS Rivalry we don’t Talk about.

Let’s clear up a name confusion.

How Merkle Trees Save Post-Quantum TLS

Google recently announced a major evolution for the Chrome browser: the development of Merkle Tree Certificates (MTCs) [1]. While led by…

TLS, Certificates, and Certificate Authorities: A Complete Mental Model (From Absolute Zero)

TLS is one of those topics almost every backend engineer relies on daily and almost none can explain from scratch. You configure it for a…

AWS Security Fundamentals: Understanding Encryption in AWS

“Data is one of the most valuable assets an organization owns. Security is not simply about locking systems — it is about ensuring that…

Cross-Certificates: The Cryptographic Bridge That Keeps the Internet Working

When GlobalSign decided to migrate from its aging Root R3 to the newer Root R46, it created a paradox: the very upgrade meant to improve…

The BoringSSL

Authentication | Encryption | Integrity

TLS 1.3 vs TLS 1.2: Key Security and Performance Differences Explained

TLS 1.3 and TLS 1.2 are the two most deployed versions of the Transport Layer Security protocol, but they are not interchangeable. The…

Understanding TLS: Certificates, Key Exchange, Session Keys, TLS 1.2, TLS 1.3 and mTLS Explained

Understanding TLS: From Certificates to Secure Communication

Most of our outbound bandwidth wasn't data. It was hellos.

Free, automated TLS on Oracle Cloud Load Balancers with Let’s Encrypt (Part 3 of 3)

The per-user JWT trust binding, and why our “fail safe” service account fix didn’t save us

What a veteran gives you, what a young language doesn’t have… those darn CA certificates (Java vs…

What a veteran gives you, what a young language doesn’t have… those darn CA certificates (Java vs Elixir) 5 TLS iterations. cacerts…

Demystifying the SSL/TLS Chain of Trust: Why Your Certificates Break and How to Fix Them

Here is a complete, publication-ready technical blog post that breaks down Public Key Infrastructure (PKI), the Certificate Chain of Trust…

The Hidden PKI Problem Nobody Talks About: Trust Anchor Continuity in Long-Lived Device Ecosystems

Introduction

Manual vs Automated Certificate Management: Why the Old Way Is Running Out of Time

Discover why manual SSL certificate management will soon be a thing of the past, and learn how to embrace the SSL automation era.

The Certificate Manager You Never Knew You Needed

You have EntityManager for your database and ConnectionManager for your connections. Meet CertManager — the one managing the certificates…

HTTP vs HTTPS — The Complete Guide Every Backend & Performance Engineer Should Bookmark

From TLS handshake internals to free certificates, hardened Nginx configs, self-signed certs, mTLS, and JMeter testing — everything in one…

TLS/SSL Certificates — Let’s Encrypt

This is my first Medium post, so I wanted to pick a topic that genuinely confused me for a long time — something I kept using daily without…

Configuration Haproxy Load Balancer | LKS DIY 2026

Tugas ini akan menjadikan HAProxy sebagai pintu gerbang utama (gateway) yang menangani enkripsi SSL/TLS, sehingga beban kerja Nginx di WEB1…

Vacib Protokollar, İşləmə prinsipləri, SSL/TLS sertifikatının izahı və Praktiki olaraq yaradılması

FTP (File Transfer Protocol)

Resolve the “Self-Signed Certificate in Certificate Chain” Error

Learn what causes the Self-Signed Certificate in Certificate Chain error and follow thes steps to fix it and restore proper SSL trust.

[เนื้อหา] Manage SSL/TLS Certificate บน Linux

เราจะมาทำความเข้าใจเรื่องการใช้งาน certificate บน Linux กัน

Create Your Own Certificates Using OpenSSL

Concepts

What Is a Self-Signed Certificate and How Does It Work?

Learn what self-signed certificates are, how they work, and when to use them safely in development or internal environments.

The TLS Certificate Paradox: Why Lambda Doesn’t Need One with NLB — but On-Prem Does

n a recent project, I deployed a Lambda function using the .NET 8 runtime that invoked an NLB HTTPS endpoint. Surprisingly, I didn’t…

Monitoring Let’s Encrypt Certificate Expiry with PowerShell and Notifications via Telegram and…

Introduction

How We Renewed Our Expired Elasticsearch Self-Signed Certificate (Without Breaking Everything)

TL;DR

Difference Between http:// and https://?

Online security is of paramount concern for both individuals and organizations. As we navigate the vast landscape of the internet…

The Benefits & Limitations of SSL Certificates

Today, secure browsing is non-negotiable and SSL certificates play a crucial role in ensuring the same. However, SSL has advantages and…

Using curl with TLS client certificate

Generate private key .key and certificate signing request .csr [1].