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coolvds.com › Blog › DevOps & Infrastructure

API Gateway Performance Tuning: Surviving the Thundering Herd in 2020

· CoolVDS Team

Default configurations are the enemy of scale. We dissect the Linux kernel and Nginx settings required to handle 10k+ RPS without melting your CPU, specifically tailored for the Nordic infrastructure landscape.

coolvds.com › Blog › Security & Compliance

Building a Zero-Trust Bastion: Why the Perimeter is Dead (and How to Fix It)

· CoolVDS Team

The 'castle and moat' security model failed the moment your team went remote in 2020. Here is a battle-tested guide to implementing Zero-Trust architecture on Linux using WireGuard, Nginx mTLS, and rigorous kernel hardening, specifically tailored for Norwegian data sovereignty.

coolvds.com › Blog › DevOps & Infrastructure

Observability vs Monitoring: Why Green Dashboards Are Lying to You

· CoolVDS Team

Monitoring tells you the server is up. Observability tells you why the checkout is failing for users in Bergen. We break down the technical differences, the 2020 stack (Prometheus, ELK, Jaeger), and why infrastructure matters.

coolvds.com › Blog › Database Management

Database Sharding: The Nuclear Option for Scaling High-Traffic Apps in 2020

· CoolVDS Team

Sharding is complex, expensive, and risky. Before you break your database into pieces, maximize your vertical scale with high-IOPS NVMe infrastructure. Here is the battle-hardened guide to sharding MySQL and PostgreSQL without losing your sanity.

coolvds.com › Blog › DevOps & Infrastructure

The Pragmatic Multi-Cloud: Escaping Vendor Lock-in While Keeping Data in Norway

· CoolVDS Team

Stop bleeding money on hyperscaler egress fees. A pragmatic guide for CTOs on architecting a hybrid infrastructure that leverages local NVMe performance in Oslo while retaining cloud scalability. Includes Terraform patterns and WireGuard configurations.

coolvds.com › Blog › DevOps & Infrastructure

Disaster Recovery in 2020: Why Your Offsite Backups Won't Save You

· CoolVDS Team

Is your RTO under 15 minutes? If not, your disaster recovery plan is just a theory. We explore battle-tested strategies, Ansible automation, and why Norwegian data sovereignty is your safety net.

coolvds.com › Blog › DevOps & Infrastructure

Taming Microservices Chaos: A Real-World Service Mesh Guide for 2020

· CoolVDS Team

Service Meshes like Istio and Linkerd are powerful, but they aren't free. Learn how to implement mTLS and traffic splitting on Kubernetes 1.18 without destroying your latency budgets, specifically tailored for high-compliance Norwegian environments.

coolvds.com › Blog › DevOps & Infrastructure

Stop Guessing Why Your Server is Slow: A Battle-Hardened Guide to APM in 2020

· CoolVDS Team

Latency kills conversion. In this deep dive, we dismantle the 'black box' of server performance using Prometheus, Grafana, and system-level profiling. Learn how to monitor high-traffic Norwegian workloads without relying on expensive SaaS tools.