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coolvds.com › Blog › DevOps & Infrastructure

Serverless Without the Lock-in: Architecture Patterns for 2020

· CoolVDS Team

While AWS Lambda and Azure Functions dominate the headlines, pragmatic architects are looking at self-hosted FaaS on high-performance VPS to solve latency and GDPR challenges. Here is how to build it.

coolvds.com › Blog › DevOps & Infrastructure

Container Security in 2019: Stop Running Docker as Root or Get Hacked

· CoolVDS Team

It's late 2019, and the 'runc' vulnerability is still haunting production environments. Here is a battle-hardened guide to locking down containers, managing capabilities, and why the underlying hardware in Oslo matters more than you think.

coolvds.com › Blog › Database Management

Zero-Downtime Database Migration: The Battle-Tested Strategy for Norwegian Ops

· CoolVDS Team

Stop relying on 'maintenance windows' and hope. This guide details a master-slave replication strategy using Percona XtraBackup on NVMe infrastructure to achieve near-zero downtime migrations, strictly adhering to GDPR and Norwegian data sovereignty standards.

coolvds.com › Blog › Server Administration

Automated Backups: Why RAID Is Not A Strategy and Scripting Your Survival

· CoolVDS Team

It is 2012. Hard drives fail. In this guide, we bypass the marketing fluff and dive into `rsync`, MySQL rotation scripts, and Data Protection Act compliant offsite strategies to save your infrastructure from inevitable disaster.

coolvds.com › Blog › DevOps & Infrastructure

Container Escapes Are Real: Hardening Docker and Kubernetes for Production in 2022

· CoolVDS Team

Containers are not virtual machines. In the wake of Log4Shell, relying on default Docker settings is negligence. Learn how to implement rootless execution, drop kernel capabilities, and why hardware-level isolation at the VPS level is your last line of defense.

coolvds.com › Blog › Database Management

Database Sharding Strategies: Scaling Beyond the Monolith in 2021

· CoolVDS Team

Hit the ceiling on your vertical scaling? We dive deep into practical sharding strategies, key-based vs. range-based architectures, and why local NVMe storage matters for Norwegian data residency.

coolvds.com › Blog › Performance Optimization

The Latency Trap: Why High-Performance Apps Need Local Hardware in Norway

· CoolVDS Team

Physical distance is the one bottleneck you can't code away. We analyze the TCP impacts of hosting outside Norway, optimize the Linux network stack for sub-10ms response times, and explain why local SSD storage beats a remote SAN every time.