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 Uvicorn ASGI server with systemd and reverse proxy for FastAPI applications
hostingInstall and configure Ollama for local AI models on Linux servers
devopsInstall and configure Uptime Kuma for website monitoring with SSL and email alerts
monitoringRecently published
Configure custom SNMP MIBs for vendor-specific monitoring with SNMP v2c and v3
monitoringImplement NGINX Plus active health checks for enterprise environments
hostingSetup Prometheus Blackbox Exporter for endpoint monitoring with SSL and alerting
monitoringConfigure Prometheus alerting with AlertManager notifications and webhook integration
monitoringConfigure Elasticsearch cross-cluster replication for disaster recovery
databasesConfigure HAProxy advanced routing with ACLs and maps for intelligent traffic management
Set up sophisticated traffic routing in HAProxy using Access Control Lists (ACLs) and map files for dynamic backend selection, SSL SNI routing, and intelligent request distribution based on headers, paths, and custom conditions.
Configure Prometheus Alertmanager for email and Slack notifications with webhook integration
Set up Prometheus Alertmanager to send critical alerts via email and Slack channels with custom webhook integration. This tutorial covers installation, SMTP configuration, routing rules, and alert notification testing.
Monitor PostgreSQL performance with pg_stat_statements extension for query analysis and optimization
Set up pg_stat_statements extension to collect query statistics, analyze slow queries, and optimize PostgreSQL database performance with automated monitoring alerts.
Install and configure PgBouncer for PostgreSQL connection pooling with performance optimization
Set up PgBouncer to efficiently manage PostgreSQL connections, reduce database load, and improve application performance with proper authentication and monitoring.
Set up Prometheus Blackbox Exporter for uptime monitoring with SSL and alerting
Configure Prometheus Blackbox Exporter to monitor website availability, SSL certificate expiry, and HTTP response times with comprehensive Grafana dashboards and alert rules.
Configure backup monitoring with Prometheus and Grafana for automated infrastructure oversight
Set up comprehensive backup monitoring using Prometheus exporters and Grafana dashboards. Configure automated alerts for backup failures, track success rates, and visualize backup infrastructure health across multiple systems.
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.
Set up NGINX monitoring with Prometheus and Grafana for web server observability
Monitor your NGINX web server performance and health with Prometheus metrics collection and Grafana dashboards. Set up comprehensive observability including request rates, response times, error tracking, and automated alerting for production web servers.
Monitor MongoDB 8.0 performance with Prometheus and Grafana for real-time metrics and alerting
Set up comprehensive MongoDB performance monitoring using Prometheus metrics collection and Grafana dashboards with alerting rules for database health, connection pools, and query performance.
Optimize ClickHouse performance for large datasets with advanced tuning and memory management
Optimize ClickHouse for high-performance analytics on multi-terabyte datasets with advanced memory tuning, storage engine configuration, query optimization strategies, and distributed clustering for production workloads.
Fix apt update E: Repository no longer has a Release file
Resolve apt update errors when repositories lose Release files due to expired GPG keys, discontinued repos, or corrupted package manager state. Includes diagnostics, recovery methods, and prevention strategies.
Install and configure Waitress WSGI server with SSL certificates for Python web applications
Deploy production-ready Python web applications using Waitress WSGI server with SSL certificates, systemd service management, and reverse proxy configuration for Flask and Django applications.
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