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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Configure Linux system time synchronization with chrony and NTP hardening

linux
860

Set up Node.js application security with Helmet and rate limiting

security
742

Install and configure Caddy web server with automatic HTTPS and reverse proxy

hosting
714

Install and configure PostgreSQL 17 with performance tuning and security hardening

databases
706

Install and configure Uvicorn ASGI server with systemd and reverse proxy for FastAPI applications

hosting
706

Recently published

Integrate ModSecurity 3 with SOAR platforms for automated incident response and threat detection

security
4 hours ago

Monitor Node.js applications with Prometheus and Grafana for comprehensive performance metrics

monitoring
4 hours ago

Set up PostgreSQL 17 streaming replication with PgBouncer connection pooling and load balancing

databases
4 hours ago

Set up ELK Stack for centralized ModSecurity log analysis and monitoring

security
4 hours ago

Implement network security policies with iptables and firewalld for enterprise infrastructure protection

security
9 hours ago
"fluentd" × Clear all
monitoring Intermediate

Configure Loki and Promtail for centralized Docker log aggregation and analysis

Set up Grafana Loki and Promtail to collect, aggregate, and analyze logs from Docker containers. Configure retention policies, integrate with Grafana for visualization, and enable real-time log monitoring across your infrastructure.

25 min 4 distros 60 views
monitoring Intermediate

Monitor Kubernetes cluster with Prometheus Operator for comprehensive observability

Set up complete cluster monitoring using Prometheus Operator with automated metrics collection, custom dashboards, and intelligent alerting for production Kubernetes environments.

45 min 4 distros 34 views
monitoring Intermediate

Configure Fluentd with Kubernetes DaemonSet and log routing for centralized collection

Deploy Fluentd as a DaemonSet on Kubernetes for centralized log collection with multi-format parsing, routing to multiple outputs, and RBAC security. Includes configuration for Elasticsearch, S3, and custom log sources.

45 min 4 distros 16 views
security Intermediate

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.

45 min 4 distros 148 views
monitoring Advanced

Set up keepalived cluster monitoring with Prometheus alerts and Grafana dashboards

Configure comprehensive monitoring for keepalived VRRP clusters using Prometheus metrics collection, alerting rules for failover events, and Grafana dashboards for high availability visualization.

45 min 4 distros 123 views
monitoring Intermediate

Setup Elasticsearch monitoring with Metricbeat and Kibana dashboards

Monitor your Elasticsearch cluster performance with Metricbeat for comprehensive metrics collection and visualization through pre-built Kibana dashboards. This tutorial covers installation, configuration, and automated alerting.

25 min 4 distros 152 views
devops Intermediate

Implement Deno WebSocket real-time applications with clustering and production deployment

Build production-ready real-time WebSocket applications with Deno, implementing clustering for high availability, SSL termination, and comprehensive monitoring for scalable messaging systems.

45 min 4 distros 178 views
monitoring Intermediate

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.

45 min 4 distros 165 views
linux Intermediate

Configure Linux system logging with rsyslog and journald for centralized log management

Set up comprehensive Linux logging infrastructure using rsyslog for traditional syslog handling and journald for systemd service logs. Configure remote logging, log rotation, filtering rules, and troubleshoot common logging performance issues.

25 min 6 distros 591 views
security Advanced

Implement Cilium Tetragon runtime security for Kubernetes with eBPF monitoring and threat detection

Deploy Cilium Tetragon for advanced runtime security monitoring in Kubernetes clusters using eBPF technology. Configure security policies, threat detection rules, and real-time monitoring with Grafana dashboards for comprehensive container protection.

45 min 4 distros 497 views
monitoring Intermediate

Install and configure Jaeger for distributed tracing with Elasticsearch backend

Set up Jaeger distributed tracing system with Elasticsearch storage backend for microservices monitoring. Configure collector, query service, and UI with SSL security and performance optimization.

45 min 6 distros 430 views
monitoring Intermediate

Install and configure Fluentd for centralized log collection with multi-format parsing

Set up Fluentd with td-agent for enterprise-grade log collection, custom parsers, and multi-destination routing. Configure SSL, performance optimization, and security hardening for production environments.

45 min 6 distros 501 views

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