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
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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
Install and configure Deno for web development with systemd and reverse proxy
hostingInstall and configure Caddy web server with automatic HTTPS and reverse proxy
hostingInstall and configure Ollama for local AI models on Linux servers
devopsInstall and configure Uvicorn ASGI server with systemd and reverse proxy for FastAPI applications
hostingInstall and configure Uptime Kuma for website monitoring with SSL and email alerts
monitoringRecently published
Setup Node.js error tracking with Sentry for production monitoring and debugging
monitoringImplement Node.js application monitoring with Prometheus metrics and Grafana dashboards
monitoringImplement OSPF multi-area design with FRRouting and advanced routing policies
networkingConfigure Istio security policies with external authorization services integration
securityImplement Docker network security with custom bridge networks and container isolation
securityConfigure SSL certificates and security hardening for Nexus Repository Manager
Secure your Nexus Repository Manager with SSL/TLS certificates, enforce HTTPS connections, and implement comprehensive security hardening including authentication controls, access policies, and audit logging for production environments.
Configure Keycloak high availability clustering for production with load balancing and failover
Set up a production-ready Keycloak cluster with PostgreSQL backend, HAProxy load balancing, and automatic failover to ensure identity services remain available during node failures and high traffic.
Configure Nexus Repository Manager LDAP authentication for enterprise user management
Set up LDAP authentication for Nexus Repository Manager to enable centralized enterprise user management and seamless integration with Active Directory for secure artifact repository access.
Setup Keycloak SAML integration for enterprise single sign-on with identity providers
Configure Keycloak as a SAML identity provider for enterprise SSO, integrate with external identity providers, and implement secure SAML service provider connections with attribute mapping.
Setup Kafka Schema Registry with Avro serialization for data processing
Configure Confluent Schema Registry with Avro serialization for production Kafka deployments. Includes schema evolution, producer/consumer integration, and SSL security configuration.
Configure Kafka Schema Registry with Avro serialization for data processing
Set up Confluent Schema Registry with Apache Kafka to manage Avro schemas for data serialization. Configure producers and consumers with schema evolution and compatibility rules for production data processing workflows.
Configure Apache HTTP Server clustering with mod_cluster and JBoss EAP for enterprise load balancing
Set up Apache HTTP Server with mod_cluster module to create an intelligent load balancing cluster with JBoss EAP application servers, featuring automatic node discovery, session clustering, and health monitoring.
Configure Tomcat 11 database connection pooling with JNDI and HikariCP for high availability
Set up production-grade database connection pooling in Tomcat 11 using JNDI resources and HikariCP for optimal performance and high availability. Learn to configure server.xml, context.xml, and monitor connection pools effectively.
Install and configure Graylog 5 for centralized log management with MongoDB and Elasticsearch
Set up Graylog 5 with MongoDB 8.0 and Elasticsearch 8 for centralized log collection, analysis, and alerting. Learn to configure secure inputs, data streams, and monitoring for production environments.
Configure SonarQube high availability clustering with PostgreSQL and load balancing
Set up enterprise-grade SonarQube clustering with PostgreSQL database replication, multiple application nodes, and HAProxy load balancing for zero-downtime code quality analysis across distributed teams.
Integrate OpenTelemetry with ELK stack for unified observability and distributed tracing
Set up a comprehensive observability stack by integrating OpenTelemetry Collector with Elasticsearch, Logstash, and Kibana for distributed tracing, metrics collection, and unified monitoring across microservices and applications.
Monitor Elasticsearch cluster with Prometheus and Grafana dashboards
Set up comprehensive Elasticsearch cluster monitoring using Prometheus Elasticsearch Exporter and Grafana dashboards. Configure alerting rules for cluster health, performance metrics, and automated notifications.
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