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coolvds.com › Blog › DevOps & Infrastructure

Stop Guessing: A Battle-Hardened Guide to Self-Hosted APM on VPS

· CoolVDS Team

htop is lying to you. Learn how to deploy a production-grade Prometheus and Grafana stack to monitor latency, track GDPR-compliant logs in Norway, and diagnose bottlenecks before your users do.

coolvds.com › Blog › DevOps & Infrastructure

Serverless Patterns Without the Bill Shock: Self-Hosted FaaS on KVM

· CoolVDS Team

Stop overpaying for AWS Lambda cold starts and egress fees. Learn how to deploy a GDPR-compliant, low-latency OpenFaaS cluster on CoolVDS using K3s and NVMe storage for maximum throughput in Norway.

coolvds.com › Blog › Security & Compliance

Zero-Trust Architecture: Why Your "Secure" VPN is Actually a Backdoor

· CoolVDS Team

The castle-and-moat security model is dead. In this guide, we dismantle the perimeter and build a true Zero-Trust environment using mTLS, WireGuard, and strict identity governance on Norwegian infrastructure.

coolvds.com › Blog › DevOps & Infrastructure

Stop Bleeding Money: A Pragmatic Guide to Cloud Cost Optimization in 2023

· CoolVDS Team

Cloud bills are hitting record highs. We dissect practical strategies to cut infrastructure costs without sacrificing performance, focusing on rightsizing, egress reduction, and the strategic advantage of Norwegian data sovereignty.

coolvds.com › Blog › Security & Compliance

Zero-Trust Architecture on Linux: A Practical Guide for Norwegian Ops

· CoolVDS Team

Perimeter security is dead. Learn how to implement a true Zero-Trust model using mTLS, WireGuard, and SSH CAs on Linux infrastructure, specifically tailored for GDPR compliance and Norwegian data sovereignty.

coolvds.com › Blog › Security & Compliance

Your Containers Are Leaking: Hardening Docker & Kubernetes for Production in 2023

· CoolVDS Team

I recently watched a 'secure' cluster get owned in under five minutes due to a default capability. Here is the battle-tested guide to container security, focusing on rootless execution, immutable filesystems, and why hosting jurisdiction in Norway is your last line of defense.

coolvds.com › Blog › DevOps & Infrastructure

Cloud Cost Optimization: Escaping the Hyperscaler Tax in 2023

· CoolVDS Team

With the USD/NOK exchange rate volatile and energy prices soaring, the 'pay-as-you-go' model is becoming a liability. Here is a pragmatic technical guide to cutting cloud overhead without sacrificing IOPS or compliance.

coolvds.com › Blog › DevOps & Infrastructure

Kubernetes Networking Deep Dive: From CNI Wars to IPVS Optimization

· CoolVDS Team

Stop debugging random DNS timeouts and start architecting for throughput. We explore Calico vs. Cilium, the limitations of iptables, and why underlying hardware is the ultimate bottleneck for K8s networking in 2022.