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
databasesFix apt update E: Repository no longer has a Release file
linuxRecently published
Configure Logstash 8 security pipelines with threat intelligence enrichment
monitoringConfigure Ansible Vault integration with HashiCorp Vault for secrets management
devopsImplement Thanos Ruler for distributed alerting and recording rules across Prometheus clusters
monitoringSet up Thanos Query and Compactor for distributed metrics querying
monitoringConfigure Kubernetes network monitoring with Hubble and Cilium for traffic visibility
monitoringImplement Thanos Ruler for distributed alerting and recording rules across Prometheus clusters
Deploy Thanos Ruler to evaluate recording and alerting rules across multiple Prometheus clusters, integrate it with Alertmanager and S3-compatible storage, and run it in HA mode with deduplication.
Configure Kubernetes network monitoring with Hubble and Cilium for traffic visibility
Enable Hubble on Cilium to get real-time eBPF-based flow visibility, deploy Hubble UI and Relay, and integrate flow metrics with Prometheus and Grafana for full Kubernetes network observability.
Implement Istio multi-cluster canary deployments and traffic splitting
Build a primary-remote Istio multi-cluster mesh with shared trust domain, then run progressive canary rollouts using DestinationRule subsets, weighted VirtualServices and metrics-based promotion across clusters.
Implement HAProxy WAF integration with ModSecurity 3 for advanced threat protection
Deploy ModSecurity 3 as a Stream Processing Offload Agent in front of HAProxy to inspect HTTP traffic with the OWASP Core Rule Set. This tutorial covers SPOA compilation, SPOE filter configuration, detection versus blocking modes, and production tuning.
Set up HAProxy SSL termination with Let's Encrypt certificates
Learn how to terminate SSL/TLS at HAProxy using Let's Encrypt certificates, redirect HTTP to HTTPS, automate renewal with deploy hooks, and harden your cipher suites for production load balancing.
Configure HAProxy with Consul for dynamic service discovery
Learn how to combine HAProxy, Consul and consul-template to build a self-updating load balancer that discovers backends automatically, reacts to health checks, and reloads without downtime.
Configure PostgreSQL 17 connection pooling with PgBouncer for high availability
Deploy PgBouncer in front of PostgreSQL 17 with session, transaction and statement pooling modes, SCRAM-SHA-256 authentication, keepalived-based HA, and Prometheus monitoring for production workloads.
Implement Deno microservices architecture with service discovery and load balancing
Build a production-ready Deno microservices architecture with Consul service discovery, HAProxy load balancing, and comprehensive monitoring using Prometheus. This tutorial covers container orchestration, health checks, and automated failover for scalable applications.
Setup OpenResty load balancing with health checks and automatic failover
Configure OpenResty with upstream backend servers, implement health monitoring, and set up automatic failover for high availability load balancing.
Setup Jaeger sampling strategies for high-volume production tracing
Configure advanced Jaeger sampling strategies to efficiently capture traces in high-traffic production environments while controlling storage costs and maintaining observability.
Configure Apache reverse proxy with caching for microservices
Set up Apache HTTP Server as a reverse proxy with intelligent caching for microservices architectures. This tutorial covers mod_proxy, mod_cache configuration, cache policies, and monitoring for high-performance service delivery.
Implement Apache load balancing with SSL termination and health checks
Configure Apache HTTP Server 2.4 with mod_proxy_balancer for high availability load balancing, SSL termination using Let's Encrypt certificates, and automated backend health monitoring with mod_proxy_hcheck for production environments.
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