Stop saying SSL: TLS only does three jobs, and your 'SSL cert' is usually not the outage
Runbooks still say "renew the SSL certificate" when the browser warning is obsolete protocol . The certificate can be brand new. The tunnel is still…
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NET::ERR_CERT_AUTHORITY_INVALID: When the Root Itself Is Not Trusted
The hostname matches. The chain is complete — every intermediate is present, each certificate signs the next, and it all leads up to a single certif…
Automatic HTTPS on Kestrel in 2026, now that LettuceEncrypt is archived
If you run an ASP.NET Core app directly on Kestrel, with no nginx or cloud load balancer in front, getting a real TLS certificate has always been th…
The Kafka Incident That Was Just a Certificate (And the Operator That Saved MirrorMaker)
A Saturday afternoon alert: under-replicated partitions on the production Kafka cluster, well over the threshold. Status CRITICAL, replicas out of s…
Deploying Gateway API with TLS Encryption on Kubernetes
The Kubernetes Gateway API is the successor to Ingress, a more expressive, role-oriented resource model ( GatewayClass , Gateway , HTTPRoute ) for a…
When TLS 1.3-only broke everything behind Akamai
The alert wasn't subtle. Requests just stopped hitting our backend nginx box. Internal traffic from our own domains kept flowing, but anything comin…
Deploying cert-manager and Managing SSL Certificates in Kubernetes
cert-manager is the standard Kubernetes add-on for automated TLS certificate issuance and renewal. It integrates with ACME-based authorities such as…
Strimzi: Create a simple Mutual TLS (mTLS) authentication
You probably already know about Strimzi . Strimzi enables Kafka on Kubernetes , simple as that. So, in this post, I will not talk about Strimzi , bu…
TLS Is Easy to Enable and Hard to Get Right
Enabling TLS is a solved problem. Get a certificate from Let's Encrypt, point your server at it, done. What's not solved is the configuration that c…
Why Subject Alternative Names (SANs) Matter for Modern Browsers
Originally published on cert-depot.com . Free, open-source self-signed certificate generator — no signup, keys never stored. Why Subject Alternative…