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
10,974

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

linux
8,446

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

monitoring
6,883

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

hosting
6,061

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

databases
5,540

Recently published

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

linux
3 hours ago

Check disk space usage on Linux with df and du commands

linux
2 days ago

Find and kill processes using a specific port on Linux

linux
6 days ago

Fix PostgreSQL FATAL sorry, too many clients already

linux
2 weeks ago

Configure Istio multi-cluster disaster recovery and automated failover

devops
2 weeks ago
"ssl" × Clear all
hosting Intermediate

Configure PHP Composer for dependency management and autoloading

Set up PHP Composer with global configuration, PSR-4 autoloading, and dependency management workflows for modern PHP development across Ubuntu, Debian, AlmaLinux, and Rocky Linux distributions.

25 min 4 distros 1,116 views
databases Intermediate

Configure DuckDB cluster setup for distributed analytics and high performance workloads

Set up a DuckDB cluster with distributed query processing, network security, and performance optimization for high-throughput analytical workloads across multiple nodes.

45 min 4 distros 1,099 views
monitoring Intermediate

Set up Netdata slave nodes for centralized monitoring with parent-child architecture

Configure Netdata parent-child architecture to stream metrics from multiple servers to a centralized dashboard. Set up authentication, SSL encryption, and troubleshoot streaming issues for scalable monitoring infrastructure.

45 min 4 distros 1,818 views
security Advanced

Configure auditd with Elasticsearch and Kibana for compliance reporting

Set up comprehensive Linux audit logging with auditd, integrate with Elasticsearch 8 and Kibana 8 for centralized analysis, and create compliance dashboards for PCI DSS, HIPAA, and SOX reporting requirements.

45 min 4 distros 1,149 views
linux Intermediate

Configure network-attached storage backup with NFS and encryption

Set up an encrypted NFS backup server with automated backup scripts and performance monitoring. Configure LUKS encryption, NFS exports, and centralized backup management for secure enterprise storage.

45 min 4 distros 1,280 views
monitoring Intermediate

Configure Netdata MySQL monitoring and database performance alerts

Set up comprehensive MySQL monitoring with Netdata for real-time database performance metrics, query analysis, and automated alerts. Monitor connection pools, slow queries, and resource usage with production-grade alerting.

25 min 4 distros 1,209 views
security Intermediate

Configure LDAP authentication for centralized user management with OpenLDAP and SSSD

Set up centralized user authentication using OpenLDAP server with SSSD client integration. Configure PAM and NSS for seamless login across multiple Linux systems with directory-based user management.

45 min 4 distros 1,631 views
monitoring Intermediate

Configure advanced Uptime Kuma monitoring with API integrations and automated alerting

Set up Uptime Kuma with advanced API endpoints, custom notification channels, and automated monitoring workflows. Configure health check automation, status page customization, and enterprise alerting rules for production environments.

45 min 4 distros 1,373 views
monitoring Intermediate

Configure Node.js application monitoring with PM2 and Grafana

Set up comprehensive Node.js application monitoring using PM2 process manager with Prometheus metrics collection and Grafana dashboards for production-grade observability and alerting.

45 min 4 distros 1,231 views
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 1,210 views
networking Intermediate

Configure HAProxy load balancing with multiple backend servers

Set up HAProxy to distribute traffic across multiple backend servers with health checks, SSL termination, and automatic failover for high availability load balancing.

45 min 4 distros 3,275 views
databases Beginner

Set up development database environments with environment variables

Learn to configure PostgreSQL, MySQL, and MariaDB development databases using environment variables for secure connection management and simplified configuration across different environments.

25 min 4 distros 1,447 views

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