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coolvds.com › Blog › Server Administration

Lockdown 2011: The Definitive Guide to Linux Server Hardening

· CoolVDS Team

In an era of rising hacktivism, default Linux installs are not safe. Learn the battle-tested strategies to secure your CentOS and Debian servers, from iptables to kernel hardening, tailored for the Norwegian hosting market.

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 › Server Administration

Paranoid Penguin: 5 Essential Steps to Harden Your Linux VPS in 2011

· CoolVDS Team

Script kiddies are scanning your IP right now. Stop relying on default configs. Here is the battle-tested guide to locking down CentOS 6 and Debian servers, securing SSH, and configuring iptables for Norwegian infrastructure.

coolvds.com › Blog › Security & Compliance

Securing Your Remote Access: Setting Up OpenVPN on CentOS 6 in Norway

· CoolVDS Team

With the rise of public WiFi insecurity and data privacy concerns, a personal VPN is mandatory for sysadmins. Learn how to deploy OpenVPN on a Norwegian VPS to secure your traffic against snooping and comply with strict local privacy laws.

coolvds.com › Blog › Server Administration

IPv4 is Dead: A Battle-Hardened Guide to Native IPv6 Deployment

· CoolVDS Team

IANA officially ran out of IPv4 blocks in February. If you aren't dual-stacking now, your infrastructure is already obsolete. Here is the raw, terminal-level guide to deploying IPv6 without breaking your uptime.

coolvds.com › Blog › Server Administration

Stop the Bloat: Migrating from mod_php to PHP-FPM on High-Performance Clusters

· CoolVDS Team

Is your Apache server capping out on RAM? It’s time to decouple. We explore how to implement the newly bundled PHP-FPM in PHP 5.3, tune process managers for traffic spikes, and leverage Nginx to handle concurrency without melting your hardware.

coolvds.com › Blog › Server Administration

OpenVZ vs. KVM: The Truth About "Burst RAM" and Overselling in 2011

· CoolVDS Team

Is your VPS actually dedicated? We analyze the architecture of OpenVZ containers, the hidden dangers of /proc/user_beancounters, and why true hardware isolation matters for your Norwegian business infrastructure.

coolvds.com › Blog › Server Administration

Server Log Forensics: Why You Need AWStats When Analytics Fail

· CoolVDS Team

Client-side tracking misses the full picture. Discover how to configure AWStats 7.0 for deep server-side analysis, uncover botnets, and audit bandwidth on high-performance infrastructure.

coolvds.com › Blog › Security & Compliance

FTP is Dead: Securing Your Data Transfer with SFTP on Linux

· CoolVDS Team

Plain text FTP is a massive security liability. Learn how to implement chrooted SFTP on CentOS and Debian to satisfy Datatilsynet requirements and secure your infrastructure.