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coolvds.com › Blog › Server Administration

Linux Server Hardening: The 20-Minute Drill for Norwegian Systems

· CoolVDS Team

A battle-hardened guide to securing your CentOS and Debian servers against automated botnets. Covers SSH locking, iptables configuration, and Fail2Ban, specifically tailored for the Norwegian hosting landscape in 2011.

coolvds.com › Blog › Server Administration

Stop Wasting RAM: Migrating from Apache mod_php to PHP-FPM & Nginx

· CoolVDS Team

Is your server swapping under load? We dive deep into the architecture of PHP-FPM, available natively in PHP 5.3.3+, and show you how to configure Nginx on CentOS 6 to handle thousands of concurrent connections without melting your hardware.

coolvds.com › Blog › DevOps & Infrastructure

The I/O Bottleneck: Why Your "Cloud" Storage Is Slowing Down Your Database

· CoolVDS Team

It is 2011, and the cloud buzzword is everywhere. But if you are running high-load databases on standard VPS hosting, you are likely suffering from the 'noisy neighbor' effect. Here is how to diagnose disk latency and why local RAID-10 beats cheap SANs.

coolvds.com › Blog › Database Management

PostgreSQL 9.0 vs MySQL 5.5: The Battle for Your Data in 2011

· CoolVDS Team

Oracle has bought Sun, PostgreSQL finally has Hot Standby, and SSDs are changing the I/O game. We benchmark the two giants of open source databases for the Norwegian hosting market.

coolvds.com › Blog › DevOps & Infrastructure

Scaling Past the Slashdot Effect: The Battle-Hardened Guide to HAProxy 1.4

· CoolVDS Team

Traffic spikes shouldn't result in a 503 Service Unavailable. In this deep dive, we configure HAProxy 1.4 for high availability, analyze Round Robin strategies, and explain why underlying virtualization architecture dictates your load balancer's survival.

coolvds.com › Blog › Performance Optimization

PHP-FPM vs Mod_PHP: Tuning for High Concurrency in 2011

· CoolVDS Team

Stop letting Apache eat your RAM. We break down why PHP 5.3's FPM is the new standard for high-performance hosting and how to configure your pools for maximum throughput.

coolvds.com › Blog › Server Administration

Stop Grepping: Visualizing Server Traffic with AWStats on CentOS & Debian

· CoolVDS Team

Raw access logs tell the truth, but they are impossible to read. Learn how to deploy AWStats for granular traffic analysis without relying on JavaScript trackers, and why high I/O performance is critical for log processing.

coolvds.com › Blog › Database Management

Stop Blaming Your PHP: The Real Bottleneck is MySQL I/O (and How to Fix It)

· CoolVDS Team

With the recent release of MySQL 5.5, the rules of database performance have changed. We analyze why moving from MyISAM to InnoDB is non-negotiable, how to tune your my.cnf for modern hardware, and why spinning disks are the silent killer of web applications.

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

Fortifying the Fortress: Essential Linux Server Hardening in 2011

· CoolVDS Team

With the recent release of Debian 6 and the rise of automated botnets, default configurations are a liability. Here is the battle-tested guide to locking down your VPS before you even point a DNS record at it.

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 › Server Administration

Scaling Beyond the Single Server: Robust Load Balancing with HAProxy 1.4

· CoolVDS Team

Stop relying on DNS round-robin. Learn how to implement true Layer 7 load balancing with HAProxy 1.4 to handle traffic spikes, ensure zero-downtime maintenance, and keep your Norwegian infrastructure compliant and responsive.

coolvds.com › Blog › Tutorials & Guides

Automated Backups: Why Your Manual Shell Scripts Will Eventually Fail You

· CoolVDS Team

RAID is not a backup. Stop relying on luck and manual tarballs. Here is the battle-hardened guide to automating disaster recovery on Linux systems using rsync, encryption, and offsite storage in compliance with Norwegian data laws.

coolvds.com › Blog › Hosting Solutions

Shared Hosting vs. VPS: Why Your Business Can't Afford 'Cheap' in 2010

· CoolVDS Team

Is your growing Magento store hitting memory limits? We dismantle the architectural differences between Shared Hosting and Virtual Private Servers (VPS), comparing OpenVZ vs. Xen virtualization, and explaining why true resource isolation is critical for Norwegian enterprises.