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 CockroachDB cluster with high availability and distributed SQL

databases
502

Install and configure ArgoCD for GitOps continuous deployment with RBAC and SSL

devops
465

Configure network interface monitoring with ICMP ping and connectivity testing

networking
460

Install and configure PostgreSQL 17 with performance tuning and security hardening

databases
453

Install and configure Loki for centralized log aggregation with Grafana integration

monitoring
453

Recently published

Monitor Elasticsearch cluster with Prometheus and Grafana dashboards

monitoring
1 hour ago

Implement Redis backup automation with RDB and AOF persistence

databases
1 hour ago

Set up keepalived cluster monitoring with Prometheus alerts and Grafana dashboards

monitoring
1 hour ago

Implement Prometheus federation for multi-cluster monitoring with centralized metrics aggregation

monitoring
1 hour ago

Configure SonarQube LDAP authentication and user management with Active Directory integration

security
6 hours ago
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linux Beginner

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.

25 min 6 distros 245 views
monitoring Beginner

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.

45 min 6 distros 276 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 209 views
hosting Beginner

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.

25 min 6 distros 415 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 240 views
performance Beginner

Optimize Linux filesystem performance with mount options and I/O schedulers

Learn to optimize Linux filesystem performance by configuring I/O schedulers, tuning ext4 mount options, and monitoring disk performance with iostat and iotop for high-throughput workloads.

25 min 6 distros 218 views
databases Intermediate

Install and configure ScyllaDB cluster with replication and performance tuning

Set up a production-ready ScyllaDB cluster with multi-node configuration, automatic replication, and performance optimization. ScyllaDB provides 10x better performance than Cassandra with drop-in compatibility.

45 min 6 distros 204 views
networking Advanced

Configure OSPF dynamic routing with FRRouting for enterprise network failover

Set up Open Shortest Path First (OSPF) protocol using FRRouting for dynamic network routing, multi-area configurations, and automatic failover in enterprise environments.

45 min 6 distros 251 views
hosting Intermediate

Install and configure Jetty application server with SSL certificates and performance tuning

Deploy Eclipse Jetty application server with SSL/TLS encryption, systemd service management, and production-ready performance optimizations. Configure reverse proxy integration and security hardening for Java web applications.

45 min 6 distros 349 views
hosting Intermediate

Install and configure Cherokee web server with FastCGI and virtual hosts

Set up Cherokee web server with web-based administration, FastCGI support for PHP applications, SSL-enabled virtual hosts, and performance optimizations for lightweight web hosting environments.

45 min 6 distros 351 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 236 views
linux Intermediate

Configure Linux system time synchronization with chrony and NTP hardening

Set up reliable time synchronization with chrony NTP client, configure secure time servers, and implement monitoring to prevent time drift on production servers.

25 min 6 distros 353 views

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