Infrastructure tutorials

Production-grade guides for Linux, servers, security and performance. Copy-paste commands, multi-distro support, written by engineers who run this in production.

security Intermediate

Configure SSH key authentication and security hardening

Replace password authentication with SSH keys and implement comprehensive security hardening including fail2ban, audit logging, and access controls to protect your Linux servers from unauthorized access and brute force attacks.

25 min 4 distros 79 views
security Intermediate

Configure PostgreSQL 17 SSL encryption and advanced security hardening

Set up SSL/TLS encryption, client certificate authentication, and comprehensive security policies for PostgreSQL 17. Includes audit logging, access controls, and firewall configuration for production environments.

45 min 4 distros 156 views
databases Advanced

Set up PostgreSQL 17 streaming replication with PgBouncer connection pooling and load balancing

Configure PostgreSQL 17 streaming replication with automatic failover, PgBouncer connection pooling for performance optimization, and HAProxy load balancing for high availability database architecture.

45 min 4 distros 189 views
security Intermediate

Implement network security policies with iptables and firewalld for enterprise infrastructure protection

Configure enterprise-grade network security with iptables and firewalld, implementing zone-based policies, advanced rules, and comprehensive logging for production infrastructure protection.

45 min 4 distros 74 views
databases Advanced

Configure Redis 7 cluster sharding for horizontal scaling with automated failover and monitoring

Set up Redis 7 cluster with automatic sharding across multiple nodes for horizontal scaling. Configure hash slots, master-slave replication, and automated failover with comprehensive monitoring.

45 min 4 distros 160 views
hosting Intermediate

Integrate H2O with Let's Encrypt for automatic SSL certificates

Set up H2O HTTP/2 web server with automatic SSL certificate management using Let's Encrypt and certbot. Configure SSL termination, automatic renewal, and security hardening for production deployments.

30 min 4 distros 82 views
security Intermediate

Configure ClamAV integration with web servers and email systems for automated threat detection

Integrate ClamAV antivirus with NGINX, Apache, Postfix and Dovecot for automated file scanning and email protection. Set up real-time threat detection with monitoring and alerting.

45 min 4 distros 64 views
linux Intermediate

Configure backup compression and deduplication with BorgBackup and rsync for optimal storage efficiency

Set up automated backup systems with BorgBackup's advanced compression and deduplication alongside rsync strategies for maximum storage efficiency and reliable data protection.

25 min 4 distros 82 views
databases Advanced

Set up PostgreSQL 17 streaming replication with PgBouncer connection pooling and load balancing

Configure PostgreSQL 17 with streaming replication for high availability, then add PgBouncer connection pooling with intelligent load balancing across primary and replica servers for production-grade database infrastructure.

45 min 4 distros 106 views
security Advanced

Implement Tailscale OAuth integration with identity providers for enterprise authentication

Configure Tailscale with enterprise identity providers including SAML and OIDC authentication, implement access control policies, and manage users across distributed teams for secure zero-trust networking.

45 min 4 distros 189 views
networking Advanced

Set up HAProxy high availability with keepalived clustering for automatic failover

Configure HAProxy load balancer with keepalived VRRP clustering for automatic failover. Set up virtual IP failover, health checks, and monitor the cluster for production high availability.

45 min 4 distros 84 views
monitoring Intermediate

Integrate Apache Tomcat 11 with Prometheus and Grafana monitoring for comprehensive performance tracking

Set up comprehensive monitoring for Apache Tomcat 11 using JMX Prometheus Java agent, configure Prometheus to scrape metrics, create detailed Grafana dashboards, and implement alerting rules for performance tracking and health monitoring.

45 min 4 distros 71 views

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