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
Integrate ModSecurity 3 with SOAR platforms for automated incident response and threat detection
securityMonitor Node.js applications with Prometheus and Grafana for comprehensive performance metrics
monitoringSet up PostgreSQL 17 streaming replication with PgBouncer connection pooling and load balancing
databasesSet up ELK Stack for centralized ModSecurity log analysis and monitoring
securityImplement network security policies with iptables and firewalld for enterprise infrastructure protection
securityInstall and configure Nexus Repository Manager for private Docker and Maven repositories
Set up Nexus Repository Manager OSS with SSL-enabled Docker registry, Maven repositories, and automated backups for secure artifact management in enterprise environments.
Install and configure Apache Kafka with cluster setup and monitoring
Set up a production-ready Apache Kafka cluster with SSL security, ZooKeeper ensemble, and comprehensive monitoring using JMX and Prometheus for high-throughput message streaming.
Install and configure Elasticsearch 8 with security and performance optimization
Set up a production-ready Elasticsearch 8 cluster with SSL/TLS security, optimized JVM settings, and automated backups. Includes memory tuning, index mapping strategies, and common troubleshooting fixes.
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