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coolvds.com › Blog › Performance Optimization

Stop Killing Your I/O: High-Performance Session Caching with Redis 2.4

· CoolVDS Team

File-based sessions are a bottleneck waiting to strangle your application. Learn how to implement Redis for session management on Linux to reduce latency and handle high-concurrency traffic, specifically tailored for Norwegian infrastructure constraints.

coolvds.com › Blog › Tutorials & Guides

Stop Flying Blind: Mastering Server Log Analysis with AWStats on CentOS 6

· CoolVDS Team

Raw access logs are useless if you can't read them. Learn how to deploy AWStats for granular traffic insight, configure proper rotation to satisfy Datatilsynet, and keep your I/O overhead low on high-performance infrastructure.

coolvds.com › Blog › Security & Compliance

Hardening Your Linux VPS: A Battle-Tested Security Guide

· CoolVDS Team

Security isn't a feature; it's a requirement. Learn the essential steps to lock down your Linux server, from iptables to SSH keys, and why Norwegian data sovereignty matters more than ever.

coolvds.com › Blog › Server Administration

Lock It Down: The Definitive Linux Server Hardening Guide (2011 Edition)

· CoolVDS Team

In an era of rising botnets and script kiddies, a default installation is a ticking time bomb. We cover the essential steps to secure your CentOS and Debian servers, from iptables to SSH keys, ensuring your Norwegian infrastructure stays online.

coolvds.com › Blog › Performance Optimization

PHP-FPM and Nginx: Crushing Load Averages on High-Traffic Portals

· CoolVDS Team

Is Apache with mod_php eating your RAM? We break down the transition to Nginx + PHP-FPM on CentOS 6, optimizing process managers for maximum throughput and explaining why I/O performance is the hidden bottleneck.

coolvds.com › Blog › Security & Compliance

FTP is Dead: Why You Must Switch to SFTP in 2011

· CoolVDS Team

Sending passwords in cleartext is professional suicide. We break down why standard FTP violates Norwegian data privacy laws and provide a step-by-step guide to hardening your file transfers using SFTP and OpenSSH on CentOS 6.

coolvds.com › Blog › Server Administration

OpenVZ Containers: Performance Myths and Production Realities

· CoolVDS Team

Is your cheap VPS actually a performance trap? We analyze the 'noisy neighbor' effect in OpenVZ, the nightmare of User Bean Counters, and why true resource isolation is critical for Norwegian business infrastructure.

coolvds.com › Blog › Performance Optimization

The "Cloud" Lie: Why Shared Storage Kills Performance (And How to Fix It)

· CoolVDS Team

Is your "scalable" cloud instance stalling on database queries? In 2011, the bottleneck isn't CPU—it's Disk I/O. We analyze the latency crisis in virtualized storage and why local SSD RAID is the only viable path for high-performance hosting in Norway.