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coolvds.com › Blog › Security & Compliance

Zero-Trust Architecture: Why "Inside the Firewall" Means Nothing in 2018

· CoolVDS Team

With GDPR enforcement just weeks away and the dust still settling from Meltdown/Spectre, the "Castle and Moat" security model is a liability. Here is how to implement a pragmatic Zero-Trust architecture using Nginx mTLS and strict SSH hardening on Norwegian infrastructure.

coolvds.com › Blog › DevOps & Infrastructure

Monitoring Tells You You're Screwed. Observability Tells You Why.

· CoolVDS Team

Nagios alerts might wake you up, but they won't fix your code. In the era of Docker and microservices, we explore the shift from binary monitoring to deep system observability using ELK, Prometheus, and high-performance infrastructure.

coolvds.com › Blog › Server Administration

Stop Analyzing iowait: Why Local SSD Storage is the Only Upgrade That Matters in 2011

· CoolVDS Team

Is your server load spiking while CPU usage sits idle? You are likely a victim of the 'IO Bottleneck' common in traditional SAN setups. We explore why switching to local SSD storage and KVM virtualization is the critical move for serious systems administrators in Norway.

coolvds.com › Blog › Server Administration

The Truth About Virtualization: Why Xen Still Beats "Cloud" Hype in 2011

· CoolVDS Team

Stop letting noisy neighbors kill your database performance. We dissect why Xen paravirtualization is the only serious choice for stability, how to tune DomU for high loads, and why hosting in Norway matters for your I/O.

coolvds.com › Blog › Security & Compliance

Paranoia is a Virtue: The 2010 Guide to Linux Server Hardening in Norway

· CoolVDS Team

In an era of automated botnets and script kiddies, a default Linux install is a ticking time bomb. Learn the battle-tested strategies to lock down your VPS, comply with Norwegian data laws, and sleep soundly knowing your iptables are holding the line.

coolvds.com › Blog › Cloud Computing

Stop Trusting Single Spindles: The Architecture of Reliable Storage in 2010

· Anna Bergström

While 'Cloud' becomes the industry buzzword of the year, physical disk failure remains the #1 cause of downtime. We dismantle the 'unlimited storage' myth, benchmark RAID 10 performance vs. cheap RAID 5, and discuss why Norwegian data sovereignty matters under the Personal Data Act.

coolvds.com › Blog › Security & Compliance

Hardening Linux in 2009: Stop Script Kiddies Before They Root Your Box

· CoolVDS Team

Default CentOS installs are a security nightmare. Learn the essential iptables rules, SSH hardening techniques, and kernel tweaks required to survive the hostile internet of 2009. Don't let a brute-force botnet turn your server into a zombie.

coolvds.com › Blog › DevOps & Infrastructure

The Autopsy of a Slow Request: APM Strategies for Norwegian DevOps in 2018

· CoolVDS Team

Stop guessing why your application is slow. We dive deep into Application Performance Monitoring (APM) using the ELK Stack and Prometheus, specifically tailored for the GDPR-conscious Norwegian infrastructure landscape of mid-2018.

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.