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
hostingFix apt update E: Repository no longer has a Release file
linuxInstall and configure Uptime Kuma for website monitoring with SSL and email alerts
monitoringInstall and configure Caddy web server with automatic HTTPS and reverse proxy
hostingInstall and configure TimescaleDB with PostgreSQL for high-performance time-series data
databasesRecently published
Find and kill processes using a specific port on Linux
linuxFix PostgreSQL FATAL sorry, too many clients already
linuxConfigure Istio multi-cluster disaster recovery and automated failover
devopsSet up automated MariaDB Galera cluster backups with compression
databasesConfigure MariaDB ColumnStore for high-performance analytics workloads
databasesSet 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.
Set up Nexus Repository Manager high availability clustering for production scale
Deploy a production-ready Nexus Repository Manager cluster with shared storage, load balancing, and automated failover for enterprise artifact management and zero-downtime operations.
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.
Set up automated MySQL database backups with compression and rotation
Create production-grade MySQL backup automation with gzip compression, logrotate management, and systemd timer scheduling. Includes integrity checking and email notifications for reliable database protection.
Optimize PHP-FPM performance with memory tuning and connection pooling for high-traffic websites
Configure PHP-FPM with optimized memory pools, process management, and connection limits to handle high-traffic websites efficiently. Learn production-grade tuning strategies for maximum performance.
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.
Install 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.
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.
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.
Optimize Linux system performance with htop process monitoring and resource analysis
Learn to use htop for advanced Linux system monitoring, process management, and performance optimization. Master resource analysis, identify bottlenecks, and automate monitoring tasks for production environments.
Configure Linux file compression and archiving with tar, gzip and backup automation
Learn to create compressed archives with tar and gzip, manage different compression formats, and implement automated backup scripts with rotation for efficient system maintenance and data protection.
Optimize Linux boot time with systemd service analysis and performance tuning
Learn to analyze and optimize Linux boot performance using systemd-analyze tools. Identify bottlenecks, disable unnecessary services, and configure parallel startup to reduce boot times on Ubuntu, Debian, and RHEL-based systems.
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