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coolvds.com › Blog › DevOps & Infrastructure

Kubernetes Networking Deep Dive: CNI, IPVS, and Why Latency Kills Clusters

· CoolVDS Team

A battle-hardened guide to optimizing Kubernetes networking in 2020. We strip away the hype to focus on CNI selection, IPVS vs. iptables, and why the Schrems II ruling makes Norwegian infrastructure the only safe bet for your data.

coolvds.com › Blog › DevOps & Infrastructure

Multi-Cloud Architectures in a Post-Schrems II World: A Technical Guide for 2020

· CoolVDS Team

With the Privacy Shield invalidated just days ago, relying on a single US-based cloud is now a compliance nightmare. Here is a pragmatic, code-heavy guide to building a hybrid multi-cloud infrastructure that keeps your data legally grounded in Norway while leveraging global redundancy.

coolvds.com › Blog › DevOps & Infrastructure

Container Security in 2020: Stop Running as Root and Lock Down Your Syscalls

· CoolVDS Team

With the ink barely dry on the Schrems II ruling, data sovereignty is paramount. But legal compliance implies technical security. Here is how to harden your container runtime, drop capabilities, and why KVM isolation on CoolVDS is your ultimate safety net.

coolvds.com › Blog › DevOps & Infrastructure

Cloud Cost Optimization in 2020: Escaping the Hyperscaler Trap Post-Schrems II

· CoolVDS Team

With the recent CJEU ruling invalidating Privacy Shield and the NOK struggling against the USD, reliance on US hyperscalers is becoming a financial and legal liability. Here is a pragmatic technical guide to cutting hosting costs by 40% while staying compliant in Norway.

coolvds.com › Blog › DevOps & Infrastructure

Beyond Uptime: Building a Bulletproof APM Strategy for High-Traffic Norwegian Workloads

· CoolVDS Team

Uptime metrics lie. This guide cuts through the noise of standard monitoring, offering a battle-tested approach to Application Performance Monitoring (APM) using the ELK stack and Prometheus. Learn how to diagnose latency spikes, handle GDPR log compliance in Norway, and why underlying hardware performance is the hard limit of optimization.

coolvds.com › Blog › Security & Compliance

Zero Trust on Linux: Building a Perimeter-Less Infrastructure in 2020

· CoolVDS Team

The 'castle and moat' security model is dead. Learn how to deploy a Zero Trust architecture using WireGuard, Nginx mTLS, and SSH Certificates on Ubuntu 20.04, ensuring your Norwegian infrastructure remains secure in a remote-first world.

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 › 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 › 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

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.