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coolvds.com › Blog › DevOps & Infrastructure

Hardening Docker 1.12: Container Security in a Post-Dirty COW World

· CoolVDS Team

The 'Dirty COW' exploit woke everyone up. Here is a battle-tested guide to locking down containers on Linux, why KVM is mandatory for true isolation, and how to navigate Norwegian data privacy in late 2016.

coolvds.com › Blog › Performance Optimization

API Gateway Survival Guide: Tuning Nginx & Kernel for High Concurrency

· CoolVDS Team

Don't let Black Friday traffic melt your API. We examine critical kernel parameters, Nginx worker optimization, and why dedicated KVM resources beat shared containers for consistent throughput in the Nordic market.

coolvds.com › Blog › DevOps & Infrastructure

High-Throughput API Gateways: Nginx Tuning & NVMe Architecture for Nordic Traffic

· CoolVDS Team

Latency isn't just network distance; it's disk I/O and kernel locks. We dissect the 2016 stack for high-performance API Gateways, focusing on Nginx tuning, TCP stack optimization on CentOS 7, and why NVMe storage is the only viable option for serious workloads.

coolvds.com › Blog › DevOps & Infrastructure

Beyond Nagios: Why 'Green' Dashboards Hide System Failure (And How to Fix It)

· CoolVDS Team

Your server responds to ping, but your customers are seeing timeouts. This 2016 guide moves beyond simple 'up/down' monitoring into deep metric aggregation using ELK and StatsD, ensuring your infrastructure is actually performing, not just existing.

coolvds.com › Blog › Database Management

Database Sharding Strategies: Breaking the Monolith Before It Breaks You

· CoolVDS Team

Vertical scaling has a ceiling. When your MySQL instance starts choking on write-heavy loads, it's time to talk about sharding. We explore consistent hashing, topology planning, and why network latency in Oslo matters more than you think.

coolvds.com › Blog › Security & Compliance

Automating Infrastructure Compliance: Preparing for the GDPR Era with Ansible

· CoolVDS Team

With the Safe Harbor framework invalidated and new EU regulations looming, manual security hardening is a liability. Learn how to automate server compliance using Ansible on CentOS 7 to satisfy auditors and secure your Nordic infrastructure.

coolvds.com › Blog › DevOps & Infrastructure

The Orchestration Wars 2016: Kubernetes 1.4 vs. Docker Swarm Mode

· CoolVDS Team

It is late 2016, and the battle for container dominance has shifted from the runtime to the cluster. We benchmark Kubernetes, Docker Swarm, and Mesos to see which solution actually survives production workloads in the Norwegian market.