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
9,749

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

monitoring
5,200

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

hosting
4,230

Install and configure Ollama for local AI models on Linux servers

devops
3,735

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

databases
3,658

Recently published

Configure PostgreSQL 17 connection pooling with PgBouncer for high availability

databases
2 days ago

Configure Kubernetes secrets management with External Secrets Operator and HashiCorp Vault

devops
4 days ago

Integrate Jaeger with Istio service mesh for distributed tracing

devops
5 days ago

Configure Consul Connect service mesh monitoring with distributed tracing

monitoring
1 month ago

Configure Kubernetes RBAC with service accounts and cluster roles for secure access control

devops
1 month ago
"alerts" × Clear all
networking Intermediate

Configure network load balancing with keepalived and VRRP for high availability failover

Set up keepalived with VRRP to create highly available network services with automatic failover. Configure virtual IP addresses that move between servers when one fails, ensuring zero-downtime load balancing.

25 min 6 distros 2,288 views
security Intermediate

Configure Linux firewall rules with fail2ban for SSH brute force protection and intrusion prevention

Set up fail2ban to automatically block SSH brute force attacks and protect your Linux server from unauthorized access attempts. Configure custom jails, firewall integration, and email notifications for comprehensive intrusion prevention.

25 min 6 distros 1,348 views
linux Intermediate

Configure Linux log rotation with logrotate and compression for system maintenance

Master log rotation with logrotate to manage disk space efficiently. Configure custom rotation policies, compression settings, and automated cleanup for applications and system logs.

25 min 6 distros 1,325 views
security Intermediate

Configure ClamAV antivirus scanning with automated threat detection and email alerts

Set up ClamAV daemon for real-time malware detection with automated scanning schedules, email notifications for threats, and optimized performance settings for production servers.

25 min 6 distros 1,442 views
security Intermediate

Configure AppArmor security profiles for web servers and databases with custom policy enforcement

Set up mandatory access control for Nginx, Apache, MySQL, and PostgreSQL using AppArmor security profiles. Learn to create custom policies, debug profile violations, and implement advanced enforcement for production web servers and databases.

45 min 6 distros 1,426 views
performance Intermediate

Optimize PostgreSQL connection pooling with PgBouncer for high-traffic applications

Learn to configure PgBouncer connection pooling to optimize PostgreSQL performance, reduce connection overhead, and handle thousands of concurrent database connections efficiently in production environments.

25 min 6 distros 1,064 views
linux Intermediate

Configure Linux process resource monitoring and alerting with cgroups and systemd

Set up comprehensive process resource monitoring using cgroups v2 and systemd to track CPU, memory, and I/O usage with automated alerting when processes exceed defined limits.

25 min 6 distros 1,171 views
linux Intermediate

Configure Linux system resource limits with systemd and ulimit for application performance

Learn to configure Linux system resource limits using systemd, ulimit, and /etc/security/limits.conf to prevent application failures from resource exhaustion. Master per-user, per-service, and system-wide limits for optimal performance.

25 min 6 distros 2,103 views
linux Intermediate

Configure Linux system firewall with nftables and security hardening

Learn how to configure nftables firewall with advanced security rules, rate limiting, and fail2ban integration. This tutorial covers migration from iptables, logging configuration, and production-grade security hardening for modern Linux systems.

45 min 6 distros 1,362 views
performance Intermediate

Optimize Linux I/O performance with kernel tuning and storage schedulers for high-throughput workloads

Learn how to optimize Linux I/O performance through kernel parameter tuning, storage scheduler configuration, and filesystem optimizations. This tutorial covers scheduler selection, queue depth tuning, and performance monitoring for high-throughput applications.

25 min 6 distros 1,166 views
linux Intermediate

Configure Linux disk usage monitoring and automated cleanup with systemd timers

Set up automated disk monitoring, log cleanup, and email alerts using systemd timers to prevent disk space issues. Configure log rotation, temporary file cleanup, and threshold-based alerting for production systems.

25 min 6 distros 1,365 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 1,678 views

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