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 Uptime Kuma for website monitoring with SSL and email alerts
monitoringInstall and configure Caddy web server with automatic HTTPS and reverse proxy
hostingInstall and configure TimescaleDB with PostgreSQL for high-performance time-series data
databasesInstall and configure Ollama for local AI models on Linux servers
devopsRecently published
Configure PostgreSQL 17 SSL encryption and certificate-based authentication
databasesSet up HAProxy SSL termination with Let's Encrypt certificates
networkingConfigure HAProxy with Consul for dynamic service discovery
networkingConfigure PostgreSQL 17 connection pooling with PgBouncer for high availability
databasesConfigure Kubernetes secrets management with External Secrets Operator and HashiCorp Vault
devopsConfigure Lighttpd 1.4 with multiple virtual hosts and subdomains
Set up Lighttpd web server with multiple virtual hosts, subdomain routing, SSL certificates, and performance optimization for hosting multiple websites on a single server with security hardening.
Configure Airflow DAG security and isolation with RBAC policies
Set up comprehensive security for Apache Airflow with role-based access control, DAG-level permissions, and resource isolation. Configure user authentication, implement fine-grained security policies, and establish monitoring for production-grade workflow orchestration.
Install and configure Squid 6 proxy server with bandwidth controls and content filtering
Set up Squid 6 proxy server with advanced traffic shaping, content filtering, and user authentication. Configure bandwidth limits, access control lists, and comprehensive logging for enterprise proxy deployments.
Setup Nginx with ModSecurity 3 web application firewall for advanced threat protection
Configure Nginx with ModSecurity 3 and OWASP Core Rule Set to protect web applications against SQL injection, XSS, and other common attacks. This tutorial covers complete WAF setup with security rules, performance optimization, and threat testing.
Implement HAProxy WAF integration with ModSecurity 3 for advanced threat protection
Configure HAProxy with ModSecurity 3 using SPOE protocol to create a high-performance web application firewall that protects against OWASP Top 10 threats while maintaining load balancing capabilities.
Set up centralized logging with rsyslog and logrotate for security events
Configure a centralized rsyslog server to collect security events from multiple systems, implement automated log rotation with logrotate, and set up filtering and alerting for critical security incidents across your infrastructure.
Set up OpenTelemetry metrics collection with Prometheus integration for distributed system monitoring
Configure OpenTelemetry Collector to gather metrics from distributed services and export them to Prometheus for comprehensive observability monitoring. This integration provides unified metrics collection across your microservices architecture.
Configure system backup automation with BorgBackup and systemd timers
Set up automated, deduplicated backups with BorgBackup and systemd timers for reliable system protection. This tutorial covers installation, repository setup with encryption, automated scheduling, and monitoring for production environments.
Configure Linux system performance monitoring with sar and sysstat for real-time metrics collection
Set up comprehensive system performance monitoring using sar and sysstat to collect CPU, memory, disk I/O, and network metrics with automated reporting and custom alerting for production Linux servers.
Implement MinIO security hardening with IAM policies and audit logging
Secure your MinIO object storage with comprehensive IAM policies, role-based access control, and audit logging for compliance monitoring. This tutorial covers user management, policy creation, and security validation for production environments.
Set up log alerting with Fluentd and Prometheus Alertmanager for centralized monitoring
Configure Fluentd to collect and parse logs, integrate with Prometheus metrics collection, and set up Alertmanager for intelligent routing of log-based alerts to multiple notification channels.
Deploy multiple Ollama instances with HAProxy load balancing for high availability AI model serving
Set up multiple Ollama instances behind HAProxy load balancer for high-availability AI model serving with health checks, SSL termination, and automatic failover to eliminate single points of failure.
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