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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Linux
System administration, shell scripting, package management
Hosting & Servers
Web servers, reverse proxies, SSL, domains
Security
Firewalls, hardening, encryption, access control
Performance
Caching, optimization, profiling, load testing
Databases
MySQL, PostgreSQL, Redis, backups, replication
Networking
DNS, load balancing, VPN, TCP/IP, routing
DevOps
CI/CD, Docker, Kubernetes, automation
Monitoring
Logging, alerting, metrics, observability
Most viewed
Install and configure Deno for web development with systemd and reverse proxy
hostingInstall and configure Caddy web server with automatic HTTPS and reverse proxy
hostingInstall and configure Ollama for local AI models on Linux servers
devopsInstall and configure Uvicorn ASGI server with systemd and reverse proxy for FastAPI applications
hostingInstall and configure Uptime Kuma for website monitoring with SSL and email alerts
monitoringRecently published
Configure ClamAV cluster with Kubernetes deployment for high availability antivirus scanning
securityOptimize Elasticsearch 8 search performance with custom analyzers and field mappings
databasesConfigure CockroachDB SSL encryption and security hardening
securityConfigure MySQL backup monitoring with Prometheus alerts and Grafana dashboards
monitoringSet up MySQL point-in-time recovery with binary logs for database backup and restore
databasesConfigure OSSEC active response for automated threat blocking
Set up OSSEC active response to automatically block threats by configuring firewall rules, custom response scripts, and tuning response actions for real-time intrusion prevention.
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.
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.
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.
Configure SSH key authentication and security hardening
Replace password authentication with SSH keys and implement comprehensive security hardening including fail2ban, audit logging, and access controls to protect your Linux servers from unauthorized access and brute force attacks.
Configure PostgreSQL 17 SSL encryption and advanced security hardening
Set up SSL/TLS encryption, client certificate authentication, and comprehensive security policies for PostgreSQL 17. Includes audit logging, access controls, and firewall configuration for production environments.
Implement network security policies with iptables and firewalld for enterprise infrastructure protection
Configure enterprise-grade network security with iptables and firewalld, implementing zone-based policies, advanced rules, and comprehensive logging for production infrastructure protection.
Set up Linux network traffic shaping with tc and QoS for bandwidth management
Learn how to implement advanced network traffic control on Linux using tc (traffic control) and HTB (Hierarchical Token Bucket) queueing disciplines. This tutorial covers bandwidth limiting, QoS policies, and traffic prioritization for optimal network performance.
Implement network monitoring with SNMP and BGP metrics using FRRouting and Prometheus
Set up comprehensive network monitoring with SNMP daemon, FRRouting BGP metrics, and Prometheus collection for real-time infrastructure visibility and alerting.
Setup MySQL replication with GTID and automatic failover
Configure MySQL 8.0 master-slave replication using GTID for reliable data synchronization, then implement MySQL High Availability (MHA) for automatic failover detection and promotion.
Implement log-based monitoring and alerting with Grafana and Loki
Set up comprehensive log aggregation with Loki, centralized visualization with Grafana dashboards, and automated alerting rules for proactive incident response across your infrastructure.
Implement Linux security hardening with CIS benchmarks and automated compliance scanning
Harden your Linux systems using CIS benchmarks with automated compliance scanning and continuous monitoring. Learn to implement security controls for filesystem permissions, user authentication, network policies, and maintain ongoing compliance with industry standards.
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