--- name: server-hardening-mastery description: 'Production server hardening — SSH, fail2ban, UFW/iptables, auditd, kernel tuning, intrusion detection, and compliance' version: 1.0.0 category: devops tags: [security, hardening, ssh, fail2ban, firewal

Production database mastery — MySQL/MariaDB, PostgreSQL, Redis, backup strategies, replication, and query optimization

Infrastructure as Code mastery — Terraform, Pulumi, CloudFormation, and multi-cloud provisioning with state management and GitOps