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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Install and configure Deno for web development with systemd and reverse proxy

hosting
10,604

Install and configure Uptime Kuma for website monitoring with SSL and email alerts

monitoring
6,459

Fix apt update E: Repository no longer has a Release file

linux
5,895

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

hosting
5,531

Install and configure TimescaleDB with PostgreSQL for high-performance time-series data

databases
5,063

Recently published

Set up automated MariaDB Galera cluster backups with compression

databases
1 week ago

Configure MariaDB ColumnStore for high-performance analytics workloads

databases
1 week ago

Implement Kibana 8 custom threat hunting dashboards for security incident response

monitoring
1 week ago

Configure Logstash 8 security pipelines with threat intelligence enrichment

monitoring
3 weeks ago

Configure Ansible Vault integration with HashiCorp Vault for secrets management

devops
3 weeks ago
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security Intermediate

Configure Nagios Core 4.5 SSL certificates and security hardening with authentication controls

Secure your Nagios monitoring with SSL certificates, advanced authentication, and comprehensive access controls. This guide covers Let's Encrypt integration, web interface hardening, and security monitoring setup.

45 min 4 distros 947 views
monitoring Intermediate

Set up Nagios Core 4.5 distributed monitoring with NRPE for remote host checks

Configure Nagios Core server with NRPE agents for distributed monitoring across multiple servers. Set up remote host checks, service monitoring, and centralized alerting for comprehensive infrastructure oversight.

45 min 4 distros 1,000 views
networking Advanced

Configure FRRouting route maps and prefix lists for advanced routing policies

Set up FRRouting with route maps and prefix lists to control BGP route advertisement, implement traffic engineering, and create sophisticated routing policies for enterprise networks.

45 min 4 distros 1,359 views
databases Advanced

Optimize Cassandra data modeling and query performance with advanced tuning and monitoring

Master advanced Cassandra optimization with data modeling best practices, partition strategies, JVM tuning, and comprehensive monitoring. Learn to design efficient schemas, optimize queries, and implement Prometheus integration for production-grade performance.

45 min 4 distros 911 views
monitoring Intermediate

Monitor system time drift with Prometheus and Grafana alerts

Set up comprehensive time synchronization monitoring with Prometheus node exporter metrics, Grafana dashboards, and automated alerting to prevent system clock drift issues in production environments.

45 min 4 distros 1,164 views
databases Advanced

Configure CockroachDB 24.3 multi-region deployment with high availability clustering

Deploy CockroachDB across multiple regions with automated failover, data locality controls, and production-grade security. Includes replication zones, load balancing, and disaster recovery strategies.

45 min 4 distros 1,442 views
security Intermediate

Set up Fail2ban with Cloudflare API integration for automatic IP blocking and enhanced security

Configure Fail2ban to automatically add malicious IPs to Cloudflare's firewall rules for enhanced protection. This tutorial covers installation, custom filters, API integration, and monitoring for comprehensive security automation across your infrastructure.

45 min 4 distros 2,705 views
linux Intermediate

Setup log aggregation with rsyslog and logrotate for centralized system monitoring

Configure rsyslog for centralized log collection across servers, implement advanced logrotate policies for automated retention, and set up remote log shipping with filtering for comprehensive system monitoring and audit compliance.

45 min 4 distros 1,233 views
networking Intermediate

Setup Tailscale site-to-site VPN with multiple exit nodes for redundancy

Configure a resilient Tailscale mesh VPN with multiple exit nodes for high availability site-to-site connectivity. Set up subnet routing, automatic failover, and monitoring across distributed networks.

45 min 4 distros 3,225 views
databases Advanced

Configure Redis 7 cluster sharding for horizontal scaling with automated failover and monitoring

Set up Redis 7 cluster with automatic sharding across multiple nodes for horizontal scaling. Configure hash slots, master-slave replication, and automated failover with comprehensive monitoring.

45 min 4 distros 1,031 views
monitoring Intermediate

Configure Tailscale monitoring with Prometheus and Grafana dashboards

Set up comprehensive monitoring for your Tailscale mesh VPN network using Prometheus metrics collection and Grafana dashboards to track node connectivity, traffic patterns, and performance across your distributed infrastructure.

45 min 4 distros 1,545 views
security Advanced

Implement Tailscale OAuth integration with identity providers for enterprise authentication

Configure Tailscale with enterprise identity providers including SAML and OIDC authentication, implement access control policies, and manage users across distributed teams for secure zero-trust networking.

45 min 4 distros 2,474 views

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