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
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
securityInstall and configure Hypercorn ASGI server with systemd and reverse proxy for Python web applications
Deploy Python ASGI applications with Hypercorn server, systemd service management, and Nginx reverse proxy for production environments. Complete setup with SSL termination and performance optimization.
Install and configure Go web applications with systemd and reverse proxy
Deploy Go web applications in production with systemd service management, NGINX reverse proxy with SSL termination, and comprehensive logging for monitoring and maintenance.
Configure Linux package management with apt, dnf and yum for system updates
Learn to manage Linux packages effectively with apt, dnf, and yum across Ubuntu, Debian, and RHEL-based distributions. Master installation, updates, repository management, and troubleshooting for reliable system maintenance.
Configure Linux system services with systemctl and service management
Learn to manage Linux system services with systemctl commands, enable services on boot, create custom service files, and troubleshoot service failures with journalctl for reliable system administration.
Set up ELK stack alerting with Watcher and email notifications for monitoring and incident response
Configure Elasticsearch Watcher to monitor log data and automatically send email alerts when critical system events occur. Create sophisticated alert conditions, manage email notification templates, and set up automated incident response workflows.
Configure Keycloak OAuth2 integration with OpenResty for enterprise SSO
Set up enterprise single sign-on by integrating Keycloak OAuth2 authentication with OpenResty using lua-resty-openidc. Configure secure authentication flows, JWT token validation, and session management for production web applications.
Implement Redis backup automation with compression and encryption
Set up automated Redis backups with compression and GPG encryption for production environments. Create systemd timers for scheduled backups and implement secure remote storage for Redis data protection.
Configure OpenVPN LDAP authentication for enterprise users with Active Directory integration
Set up OpenVPN server with LDAP authentication against Active Directory, enabling centralized user management and group-based access control for enterprise VPN deployments.
Configure Redis backup encryption with GPG for secure automated backups
Set up encrypted Redis backups using GPG keys with automated scheduling through systemd timers. This tutorial covers GPG key management, backup script creation, and secure restoration procedures for production Redis environments.
Configure SonarQube LDAP authentication with Active Directory and user group management
Set up SonarQube to authenticate users against Active Directory using LDAP. Configure automatic user provisioning, group synchronization, and role-based access control for enterprise environments with centralized authentication.
Configure Node.js JWT authentication with Redis session storage and security hardening
Set up secure JWT authentication for Node.js applications with Redis session storage, security middleware, and production-ready hardening practices.
Set up Elasticsearch 8 cross-cluster replication for disaster recovery and high availability
Configure Elasticsearch 8 cross-cluster replication (CCR) to replicate indices across multiple clusters for disaster recovery. This tutorial covers security setup, remote cluster connections, replication policies, and automated failover procedures.
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