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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 › Tutorials & Guides

Building a Bulletproof Email Gateway with Postfix on CentOS 6

· CoolVDS Team

Stop letting shared hosting blacklists kill your deliverability. This guide covers the architectural necessities of a robust Postfix deployment, from rDNS configuration to RBL implementation, ensuring your emails actually reach the inbox.

coolvds.com › Blog › Security & Compliance

FTP is Dead: Securing Your Data Transfer with SFTP and OpenSSH

· CoolVDS Team

Sending passwords over port 21 is a security suicide mission. Here is how to lock down your file transfers using SFTP chroots on CentOS and Debian, ensuring compliance with Norwegian privacy standards.

coolvds.com › Blog › Tutorials & Guides

Stop Guessing: Precision Server Log Analysis with AWStats on Linux

· Stefan Stoyanov

Client-side tracking misses 20% of your traffic. Learn how to configure AWStats for granular server-side analytics, optimize I/O performance for log parsing, and keep your data compliant with Norwegian privacy laws.

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.