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coolvds.com › Blog › Server Administration

Port 21 is a Security Hole: Configuring SFTP Chroot Jails on CentOS 5

· CoolVDS Team

Plain FTP sends your root passwords in cleartext. Stop exposing your infrastructure to packet sniffers. Here is the battle-tested guide to locking down file transfers using OpenSSH chroots on Linux, ensuring compliance with Norwegian data laws.

coolvds.com › Blog › Server Administration

Sleep Soundly: The Art of Bulletproof Automated Backups on Linux

· CoolVDS Team

RAID is not a backup. In this deep dive, we explore automated disaster recovery strategies for 2010, covering mysqldump locking, rsync over SSH, and compliance with Norway's 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 › Database Management

PostgreSQL vs. MySQL in 2010: Surviving the Oracle Takeover

· CoolVDS Team

With Oracle's acquisition of Sun Microsystems shaking the open source community, choosing the right database has never been more critical. We compare MySQL 5.1 and PostgreSQL 8.4 on performance, ACID compliance, and suitability for Norwegian enterprise hosting.

coolvds.com › Blog › Database Management

MySQL Performance Tuning: Surviving the Slashdot Effect with InnoDB

· CoolVDS Team

Is your LAMP stack buckling under load? It's likely your database configuration. We dive deep into my.cnf optimization, the MyISAM vs. InnoDB debate, and why disk I/O is the silent killer of Norwegian web applications.

coolvds.com › Blog › Security & Compliance

FTP is Dead: Why Plain Text Protocols Have No Place in 2010

· CoolVDS Team

Sending passwords over port 21 is professional negligence. We analyze the packet-level risks of FTP and implement a chrooted SFTP solution using OpenSSH 5.x to secure your Norwegian infrastructure.

coolvds.com › Blog › Performance Optimization

Stop the RAM Bleed: replacing mod_php with PHP-FPM and Nginx

· CoolVDS Team

Is your server thrashing swap under heavy load? The traditional Apache stack is failing you. Learn how to implement the PHP-FPM patch with Nginx to handle thousands of concurrent connections without melting your CPU.

coolvds.com › Blog › Server Administration

Nginx Reverse Proxy: Crushing the C10k Problem on High-Latency Networks

· CoolVDS Team

Is Apache MaxClients killing your server? Learn how to deploy Nginx as a reverse proxy to handle thousands of concurrent connections while keeping your backend lean. A guide for serious systems architects targeting the Nordic infrastructure.