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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Configure Linux system time synchronization with chrony and NTP hardening

linux
877

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

security
755

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

hosting
739

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

hosting
731

Install and configure PostgreSQL 17 with performance tuning and security hardening

databases
721

Recently published

Configure systemd service resource limits and security isolation

linux
2 hours ago

Configure NGINX SSL termination with Redis session storage

hosting
2 hours ago

Configure intrusion detection with OSSEC and fail2ban integration

security
2 hours ago

Set up Varnish 7 cluster with load balancing across multiple backends

performance
2 hours ago

Configure OSSEC active response for automated threat blocking

security
7 hours ago
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networking Intermediate

Configure NGINX load balancing with health checks and automatic failover

Set up NGINX as a load balancer with upstream servers, active health checks, and automatic failover capabilities. This tutorial covers round-robin, least-connections, and IP-hash load balancing methods with real-time backend monitoring.

25 min 4 distros 448 views
security Intermediate

Configure Linux audit logging for security compliance and monitoring

Set up comprehensive audit logging with auditd daemon to track file system changes, process execution, and network connections for security compliance and forensic analysis.

35 min 4 distros 424 views
databases Advanced

Set up ClickHouse and Kafka real-time data pipeline with streaming analytics

Build a production-ready real-time data pipeline using ClickHouse for high-performance analytics and Apache Kafka for streaming data ingestion. Configure clustering, replication, and automated data processing workflows.

45 min 4 distros 306 views
devops Advanced

Configure Consul backup and disaster recovery with automated snapshots and restoration

Set up automated Consul snapshots with verification, implement disaster recovery procedures, and configure monitoring for production-grade backup strategies that ensure service discovery data protection.

45 min 4 distros 490 views
networking Beginner

Configure network interface monitoring with ICMP ping and connectivity testing

Set up automated network connectivity monitoring using ICMP ping tests with email alerts for interface failures. Create comprehensive network health checks and reporting for production systems.

45 min 6 distros 708 views
linux Beginner

Configure Linux cron jobs and system task scheduling with best practices

Learn to configure cron jobs and systemd timers for automated task scheduling on Linux systems with proper logging, security, and troubleshooting techniques.

25 min 6 distros 597 views
networking Beginner

Set up network interface monitoring with SNMP and basic traffic analysis

Learn how to install and configure SNMP daemon for network interface monitoring, implement basic traffic analysis with automated alerting, and create monitoring scripts with cron jobs for continuous network performance tracking.

25 min 6 distros 558 views
databases Beginner

Install and configure MariaDB 11.6 with performance optimization and security hardening

Set up MariaDB 11.6 as a high-performance MySQL alternative with InnoDB optimization, SSL encryption, automated backups, and comprehensive security hardening for production environments.

45 min 6 distros 430 views
linux Beginner

Configure Linux environment variables and PATH management for development workflows

Learn how to properly configure Linux environment variables and manage your PATH for development workflows. This guide covers temporary and persistent variables, user vs system-wide configuration, and troubleshooting common issues across Ubuntu, Debian, AlmaLinux, Rocky Linux, and Fedora.

20 min 6 distros 441 views
networking Intermediate

Configure network traffic shaping with tc and HTB for bandwidth management and QoS

Set up hierarchical token bucket (HTB) traffic shaping with tc to control bandwidth allocation, prioritize network traffic, and implement quality of service policies for optimal network performance.

45 min 6 distros 516 views
linux Intermediate

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

Set up comprehensive user session resource limits using systemd and PAM to prevent resource exhaustion, fix 'too many open files' errors, and enforce memory, CPU, and process restrictions for better system stability.

25 min 6 distros 669 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 644 views

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