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 CockroachDB cluster with high availability and distributed SQL
databasesInstall and configure ArgoCD for GitOps continuous deployment with RBAC and SSL
devopsInstall and configure PostgreSQL 17 with performance tuning and security hardening
databasesInstall and configure Loki for centralized log aggregation with Grafana integration
monitoringInstall and configure WireGuard VPN server with client management
networkingRecently published
Configure SSL encryption and authentication for ClamAV cluster with high availability scanning
securityImplement MinIO security hardening with IAM policies and audit logging
securitySetup Elasticsearch monitoring with Metricbeat and Kibana dashboards
monitoringConfigure Vault auto-unseal with AWS KMS for high availability secrets management
securityImplement MariaDB connection pooling with ProxySQL for high availability
databasesInstall and configure Deno for web development with systemd and reverse proxy
Deploy production-ready Deno web applications with automatic process management using systemd and secure SSL termination through Nginx reverse proxy configuration.
Monitor system resources with Netdata real-time performance dashboard
Set up Netdata for comprehensive real-time monitoring of CPU, memory, disk, and network resources with a web-based dashboard, email alerts, and customizable thresholds.
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.
Install and configure Uptime Kuma for website monitoring with SSL and email alerts
Learn how to install Uptime Kuma, a self-hosted monitoring tool, with SSL certificates, email notifications, and comprehensive website monitoring capabilities. Set up automated alerts and maintain reliable uptime tracking for your web services.
Install and configure PHP 8.4 with Apache and security hardening
Set up PHP 8.4 with Apache web server using PHP-FPM for optimal performance and security. Learn to configure essential PHP modules, implement security hardening measures, and optimize your LAMP stack for production environments.
Install and configure MongoDB 8.0 with authentication and SSL encryption
Set up MongoDB 8.0 from official repositories with authentication enabled and SSL/TLS encryption. Configure admin users, implement security hardening, and establish monitoring for production deployments.
Configure Linux user and group management with useradd, usermod and advanced account security
Learn to manage Linux users and groups with useradd, usermod, and groupadd commands. This tutorial covers creating accounts, setting permissions, configuring password policies, and implementing security best practices for production systems.
Install and configure Nagios Core 4.5 for network and server monitoring with web interface
Set up Nagios Core 4.5 monitoring system with Apache web interface to monitor servers, network devices, and services. Configure hosts, services, and email notifications for comprehensive infrastructure monitoring.
Configure network interface aliases and secondary IP addresses on Linux
Learn how to configure multiple IP addresses on a single network interface using systemd-networkd and NetworkManager. Set up persistent network aliases for hosting multiple services, load balancing, and network segmentation.
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.
Configure Linux file permissions and access control with umask and chmod best practices
Learn how to configure secure Linux file permissions using chmod, set default permissions with umask, and implement proper access control to prevent security vulnerabilities while fixing permission denied errors.
Install and configure Node.js web applications with PM2 and reverse proxy
Deploy production-ready Node.js applications using PM2 process manager and Nginx reverse proxy with SSL certificates, automatic startup, and comprehensive monitoring for high-availability web hosting.
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