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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 › DevOps & Infrastructure

Cloud Storage Reality Check: SAN vs. Local RAID in the Post-2010 Era

· CoolVDS Team

A pragmatic analysis of cloud storage options available in 2011. We debunk the 'cloud' hype, compare SAN vs. Local RAID-10 performance, and discuss why Norwegian data sovereignty laws make local VPS hosting the smart choice for CTOs.

coolvds.com › Blog › Server Administration

Apache vs. Lighttpd: The Battle for Concurrency on High-Performance VPS

· CoolVDS Team

Is Apache 2.2 killing your RAM? We benchmark the ubiquitous giant against the event-driven challenger, Lighttpd. A deep dive into the C10K problem, FastCGI implementation, and why your choice of web server matters for hosting in Norway.

coolvds.com › Blog › Security & Compliance

Lockdown 2011: Essential Linux Server Hardening for Nordic Enterprises

· CoolVDS Team

Default Linux installations are a security liability. Learn the critical hardening steps—from SSH keys to iptables—needed to secure your infrastructure against modern botnets, while ensuring compliance with Norway's Personal Data Act.

coolvds.com › Blog › Server Administration

Cloud Storage Reality Check: Why IOPS Matter More Than Gigabytes in 2011

· CoolVDS Team

Stop buying hosting based on disk space. We dissect why storage I/O bottlenecks are the real performance killer for your infrastructure, how to diagnose them with `iostat`, and why the shift to SSDs in Norway is inevitable.

coolvds.com › Blog › Database Management

PostgreSQL 9.0 vs MySQL 5.1: The 2010 Database Showdown for Norwegian VPS

· CoolVDS Team

With the recent release of PostgreSQL 9.0 and the uncertainty surrounding Oracle's acquisition of MySQL, the database landscape in 2010 is shifting. We break down the technical differences, performance benchmarks, and why IOPS matters more than CPU for your Norwegian hosting setup.

coolvds.com › Blog › Tutorials & Guides

Building a Bulletproof OpenVPN Gateway on CentOS 5: A Sysadmin’s Guide

· Barbora Nová

Stop trusting public Wi-Fi. This guide covers a production-ready OpenVPN deployment on CentOS 5, tackling iptables routing, certificate generation, and the critical TUN/TAP driver requirements often missing in cheap hosting.

coolvds.com › Blog › Security & Compliance

Locking Down the Pipe: Industrial-Grade OpenVPN Setup on CentOS 5

· CoolVDS Team

Public Wi-Fi is a security minefield. Learn how to deploy a hardened OpenVPN server, bypass restrictive corporate firewalls, and ensure your data passing through Oslo stays private under the Personal Data Act.

coolvds.com › Blog › Performance Optimization

PHP-FPM: The Secret Weapon for High-Traffic PHP Sites

· CoolVDS Team

Stop letting Apache mod_php eat your RAM. Learn how to configure PHP-FPM (FastCGI Process Manager) with Nginx to handle massive concurrency without upgrading hardware.

coolvds.com › Blog › Hosting Solutions

OpenVZ vs. Xen: Why "Burst RAM" is a Lie and True Isolation Matters

· CoolVDS Team

Is your budget VPS slowing down during peak hours? We dive into the kernel-level differences between OpenVZ containers and Xen virtualization to explain why 'guaranteed resources' are often anything but.

coolvds.com › Blog › Performance Optimization

Stop Writing to Disk: Accelerating PHP Sessions with Redis 1.2

· CoolVDS Team

Is high I/O wait killing your web application? Default file-based sessions are a bottleneck. Learn how to implement Redis as a session handler to reduce latency and maintain persistence.