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coolvds.com › Blog › DevOps & Infrastructure

Container Security in 2016: Stop Running Docker as Root in Production

· Ivan Shevchenko

It is 2016, and Docker is eating the world. But most implementations I see in Norway are wide-open security nightmares. Here is how to lock down your containers on Ubuntu 16.04 and CentOS 7 before you get hit.

coolvds.com › Blog › DevOps & Infrastructure

Stop Letting False Positives Ruin Your Sleep: Infrastructure Monitoring at Scale

· CoolVDS Team

It is 2015. If you are still relying solely on manual Nagios checks for a dynamic fleet, you are doing it wrong. Here is how to architect a monitoring stack that scales with your traffic, keeps your data in Norway, and lets you sleep through the night.

coolvds.com › Blog › DevOps & Infrastructure

Stop Watching Progress Bars: Optimizing CI/CD Pipelines in 2015

· CoolVDS Team

Is your Jenkins build giving you enough time to finish a coffee and read Hacker News? That is a problem. We break down how disk I/O, virtualization types, and Nordic network topology impact your build times.

coolvds.com › Blog › DevOps & Infrastructure

The "NoOps" Illusion: Decoupling Architecture with Queues & KVM in 2014

· CoolVDS Team

While the industry buzzes about PaaS and 'NoOps', real scalability requires robust asynchronous patterns. We explore how to architect high-performance worker queues using Redis, Celery, and KVM-based VPS in Norway.

coolvds.com › Blog › Server Administration

Why OpenVZ is Killing Your Database: The Case for KVM in 2010

· CoolVDS Team

Stop letting 'burstable RAM' and noisy neighbors destroy your MySQL performance. We analyze why Kernel-based Virtual Machine (KVM) is the only serious choice for production environments in Norway.

coolvds.com › Blog › Server Administration

OpenVZ vs. Xen: The Dirty Truth Behind Your "Guaranteed" RAM

· CoolVDS Team

Is your 512MB VPS actually yours? We crack open /proc/user_beancounters to reveal the reality of overselling, kernel sharing, and why serious Norwegian deployments need honest virtualization.

coolvds.com › Blog › Server Administration

Apache vs Lighttpd in 2009: Surviving the C10k Problem on Your VPS

· CoolVDS Team

Is Apache 2.2 eating all your RAM? We benchmark the event-driven architecture of Lighttpd against the Apache process model. Learn how to handle high concurrency on Norwegian infrastructure without upgrading your hardware.

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 1% of users in Oslo. We dissect the 'Three Pillars' stack (Prometheus, ELK, Jaeger) and why infrastructure ownership is the root of true visibility.

coolvds.com › Blog › DevOps & Infrastructure

Observability vs. Monitoring: Why Your "Green" Dashboard Is Lying to You

· CoolVDS Team

Monitoring tells you the server is down. Observability tells you why the database locked up. In this deep dive, we explore the distinct architectural differences, implement a 2022-ready OpenTelemetry stack, and discuss why high-cardinality data demands the NVMe performance found in CoolVDS instances.