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.
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Linux
System administration, shell scripting, package management
Hosting & Servers
Web servers, reverse proxies, SSL, domains
Security
Firewalls, hardening, encryption, access control
Performance
Caching, optimization, profiling, load testing
Databases
MySQL, PostgreSQL, Redis, backups, replication
Networking
DNS, load balancing, VPN, TCP/IP, routing
DevOps
CI/CD, Docker, Kubernetes, automation
Monitoring
Logging, alerting, metrics, observability
Most viewed
Configure Linux system time synchronization with chrony and NTP hardening
linuxSet up Node.js application security with Helmet and rate limiting
securityInstall and configure Caddy web server with automatic HTTPS and reverse proxy
hostingInstall and configure Uvicorn ASGI server with systemd and reverse proxy for FastAPI applications
hostingInstall and configure PostgreSQL 17 with performance tuning and security hardening
databasesRecently published
Configure logrotate with Elasticsearch and Kibana integration for automated log management
monitoringSetup log aggregation with rsyslog and logrotate for centralized system monitoring
linuxConfigure SSH key authentication and security hardening
securityConfigure PostgreSQL 17 SSL encryption and advanced security hardening
securityIntegrate ModSecurity 3 with SOAR platforms for automated incident response and threat detection
securityInstall and configure Ansible with automation best practices and security
Learn to install Ansible on Linux, configure secure SSH authentication, create production-ready playbooks with Vault encryption, and implement roles for scalable infrastructure automation.
Install and configure Consul for service discovery with clustering and security
Set up HashiCorp Consul for distributed service discovery with a secure three-node cluster, ACL authentication, and encrypted communication for production microservices environments.
Install and configure HAProxy for high availability load balancing
Set up HAProxy with SSL termination, keepalived for high availability, and comprehensive health checks to distribute traffic across multiple backend servers with automatic failover.
Install and configure Traefik reverse proxy with SSL automation
Set up Traefik as a reverse proxy with Docker Compose for automatic SSL certificate management, service discovery, and load balancing across multiple backend services.
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