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coolvds.com › Blog › Security & Compliance

FTP is Dead: Securing File Transfers with Chrooted SFTP on CentOS 6

· CoolVDS Team

It is 2012. Sending passwords over port 21 is professional negligence. Learn how to configure a chrooted SFTP environment using OpenSSH's internal-sftp subsystem to satisfy Datatilsynet requirements and secure your infrastructure.

coolvds.com › Blog › Tutorials & Guides

Stop Guessing: Advanced Log Analysis with AWStats on CentOS 6

· CoolVDS Team

Client-side tracking misses the full picture. Learn how to deploy AWStats for server-side analytics that reveal bots, hotlinking, and bandwidth theft, optimized for SSD-backed VPS environments in Norway.

coolvds.com › Blog › Performance Optimization

Stop Killing Your Database: High-Performance Session Caching with Redis

· CoolVDS Team

Is your I/O wait spiking during peak traffic? It's probably your session handler. We break down why file and MySQL-based sessions fail at scale and how to deploy Redis 2.4 for sub-millisecond performance on CentOS 6.

coolvds.com › Blog › Server Administration

OpenVZ vs. KVM: The Hidden Costs of "Burstable" RAM in 2012

· CoolVDS Team

Is your VPS actually giving you the RAM you paid for? We dissect the architecture of OpenVZ containers versus KVM virtualization, analyze the dreaded 'user_beancounters', and explain why mission-critical Norwegian workloads demand true isolation.

coolvds.com › Blog › Server Administration

Apache vs Lighttpd: The Battle for Concurrency and RAM in 2012

· CoolVDS Team

Is Apache's process model killing your server's performance? We dive deep into the Apache 2.4 vs Lighttpd debate, comparing memory footprints, event-driven architectures, and configuration complexity for high-traffic Norwegian workloads.