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.

Browse by topic

Most viewed

Configure Linux system time synchronization with chrony and NTP hardening

linux
932

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

hosting
813

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

hosting
810

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

security
763

Configure Linux kernel parameters for container workloads with sysctl optimization

linux
762

Recently published

Configure SSH two-factor authentication with Google Authenticator TOTP

security
2 hours ago

Monitor Cherokee web server performance with Grafana and Prometheus metrics collection

monitoring
7 hours ago

Monitor OSPF network topology with Prometheus and Grafana dashboards

networking
16 hours ago

Monitor ScyllaDB cluster with Prometheus and Grafana for comprehensive performance tracking

monitoring
21 hours ago

Monitor Jetty performance with JMX and Grafana dashboards

monitoring
1 day ago
"resilience" × Clear all
databases Advanced

Configure Elasticsearch 8 cross-cluster replication for disaster recovery

Set up cross-cluster replication between Elasticsearch 8 clusters to ensure data resilience and business continuity. This advanced configuration creates automatic data synchronization across geographically distributed clusters for disaster recovery scenarios.

45 min 4 distros 90 views
devops Advanced

Set up Consul multi-datacenter replication with ACL token replication

Configure Consul WAN federation across multiple datacenters with secure ACL token replication. Enable automatic token synchronization, gossip encryption, and cross-datacenter service discovery for distributed infrastructure.

45 min 4 distros 49 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 46 views
devops Advanced

Implement Istio circuit breaker and retry policies for microservices resilience and fault tolerance

Configure Istio destination rules with circuit breaker patterns, implement retry policies with exponential backoff, and set up comprehensive fault injection testing for microservices resilience in Kubernetes service mesh environments.

45 min 4 distros 70 views
security Advanced

Configure Keycloak high availability clustering for production with load balancing and failover

Set up a production-ready Keycloak cluster with PostgreSQL backend, HAProxy load balancing, and automatic failover to ensure identity services remain available during node failures and high traffic.

90 min 4 distros 169 views
monitoring Intermediate

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.

25 min 4 distros 82 views
databases Intermediate

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.

25 min 4 distros 80 views
monitoring Advanced

Install and configure Graylog 5 for centralized log management with MongoDB and Elasticsearch

Set up Graylog 5 with MongoDB 8.0 and Elasticsearch 8 for centralized log collection, analysis, and alerting. Learn to configure secure inputs, data streams, and monitoring for production environments.

45 min 4 distros 123 views
monitoring Intermediate

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.

25 min 4 distros 164 views
devops Advanced

Set up Apache Airflow high availability with CeleryExecutor and Redis clustering

Deploy Apache Airflow in high availability mode using CeleryExecutor with Redis clustering for task distribution, PostgreSQL connection pooling, and load-balanced webservers for production-grade workflow orchestration.

45 min 4 distros 352 views
monitoring Intermediate

Integrate Nagios Core 4.5 with Grafana dashboards for advanced monitoring visualization

Connect Nagios Core 4.5 with Grafana through NDOUtils and MySQL to create powerful monitoring dashboards. This integration provides advanced visualization capabilities, real-time alerting, and comprehensive monitoring insights for your infrastructure.

45 min 4 distros 319 views
networking Advanced

Configure OSPF with FRRouting 10 for dynamic routing protocols and network failover

Set up OSPF dynamic routing with FRRouting 10 for automatic network failover and route redistribution. Configure area authentication, routing policies, and monitoring for enterprise network resilience.

45 min 4 distros 347 views

Need help?

Don't want to manage this yourself?

We handle infrastructure for businesses that depend on uptime. From initial setup to ongoing operations.

Talk to an engineer