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
3,052

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

hosting
1,770

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

hosting
1,579

Install and configure Ollama for local AI models on Linux servers

devops
1,406

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

monitoring
1,285

Recently published

Implement NGINX Plus active health checks for enterprise environments

hosting
8 hours ago

Setup Prometheus Blackbox Exporter for endpoint monitoring with SSL and alerting

monitoring
13 hours ago

Configure Prometheus alerting with AlertManager notifications and webhook integration

monitoring
18 hours ago

Configure Elasticsearch cross-cluster replication for disaster recovery

databases
23 hours ago

Configure InfluxDB 2.7 clustering for high availability with data replication and automated failover

databases
1 day ago
"rsyslog" × Clear all
hosting Beginner

Fix systemd service keeps restarting in a loop

Stop systemd services from continuously restarting by identifying restart loop causes, debugging configuration issues, and implementing proper service constraints to ensure stable operation.

25 min 6 distros 448 views
hosting Beginner

Fix high load average with low CPU usage on web servers

Diagnose and resolve high load average issues when CPU usage remains low on Linux web servers. Learn to identify I/O bottlenecks, blocked processes, and system resource contention affecting performance.

25 min 6 distros 396 views
linux Beginner

Configure Linux system services with systemctl and service management

Learn to manage Linux system services with systemctl commands, enable services on boot, create custom service files, and troubleshoot service failures with journalctl for reliable system administration.

25 min 6 distros 234 views
security Intermediate

Configure intrusion detection with OSSEC and Wazuh for real-time security monitoring

Set up comprehensive host-based intrusion detection with OSSEC HIDS and Wazuh manager for real-time security monitoring, file integrity checking, and automated threat response across your infrastructure.

45 min 4 distros 256 views
linux Intermediate

Configure Linux user session limits with systemd and pam_limits for resource management

Learn to set up comprehensive user session resource limits using both traditional pam_limits.conf and modern systemd user slices. This tutorial covers memory, CPU, and process limits to prevent resource exhaustion on multi-user systems.

25 min 4 distros 185 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 241 views
databases Intermediate

Set up automated MySQL database backups with compression and rotation

Configure automated MySQL database backups with compression, encryption, and rotation using systemd timers. Includes monitoring and alerting for backup failures.

45 min 4 distros 219 views
databases Intermediate

Implement Redis backup automation with compression and encryption

Set up automated Redis backups with compression and GPG encryption for production environments. Create systemd timers for scheduled backups and implement secure remote storage for Redis data protection.

25 min 4 distros 250 views
security Intermediate

Configure SSH port forwarding and tunneling for secure connections

Learn to configure SSH port forwarding, remote tunnels, and SOCKS proxy for secure network connections. Set up local, remote, and dynamic port forwarding with automated monitoring and security hardening.

35 min 4 distros 190 views
hosting Intermediate

Configure Lighttpd 1.4 with multiple virtual hosts and subdomains

Set up Lighttpd web server with multiple virtual hosts, subdomain routing, SSL certificates, and performance optimization for hosting multiple websites on a single server with security hardening.

45 min 4 distros 211 views
security Advanced

Configure Airflow DAG security and isolation with RBAC policies

Set up comprehensive security for Apache Airflow with role-based access control, DAG-level permissions, and resource isolation. Configure user authentication, implement fine-grained security policies, and establish monitoring for production-grade workflow orchestration.

45 min 4 distros 304 views
security Intermediate

Set up OSSEC agent deployment and centralized management with automated configuration

Deploy and manage OSSEC Host-based Intrusion Detection System (HIDS) across multiple servers with centralized monitoring, automated agent configuration, and real-time security event processing for enterprise-scale infrastructure protection.

45 min 4 distros 287 views

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