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 Uvicorn ASGI server with systemd and reverse proxy for FastAPI applications
hostingInstall and configure Ollama for local AI models on Linux servers
devopsInstall and configure Uptime Kuma for website monitoring with SSL and email alerts
monitoringRecently published
Configure Nginx Redis cluster caching for high availability and performance optimization
performanceConfigure custom SNMP MIBs for vendor-specific monitoring with SNMP v2c and v3
monitoringImplement NGINX Plus active health checks for enterprise environments
hostingSetup Prometheus Blackbox Exporter for endpoint monitoring with SSL and alerting
monitoringConfigure Prometheus alerting with AlertManager notifications and webhook integration
monitoringConfigure Nginx Redis cluster caching for high availability and performance optimization
Set up Nginx with Redis cluster caching to achieve high availability and optimized performance. This advanced configuration includes cluster setup, failover testing, and performance tuning for production environments.
Optimize Varnish 7 cache storage with memory tuning and persistence configuration
Configure Varnish 7 memory allocation and storage backends for optimal cache performance. Set up file-based persistence and tune memory parameters for high-traffic workloads with monitoring.
Optimize ScyllaDB performance for time-series data workloads with advanced configuration tuning
Configure ScyllaDB with specialized optimizations for time-series workloads including partitioning strategies, compaction settings, and memory tuning. Set up monitoring with Prometheus and Grafana for production performance insights.
Configure container resource limits with Docker and systemd for production workloads
Learn to set memory, CPU, and I/O limits for Docker containers using both Docker runtime constraints and systemd service limits. Master cgroups v2 integration for bulletproof resource management in production environments.
Configure Prometheus alerting rules for cgroup metrics monitoring and container resource alerts
Set up comprehensive Prometheus alerting rules for monitoring cgroup resource usage with automated threshold alerts for CPU, memory, and I/O limits. Configure Alertmanager notifications for container resource exhaustion and system health monitoring.
Configure Linux cgroups v2 for container resource management and isolation
Set up cgroups v2 for container resource limits, CPU and memory isolation, and performance monitoring with systemd integration across modern Linux distributions.
Configure Linux filesystem tuning and optimization for database workloads
Optimize Linux filesystem performance for database workloads by configuring mount options, I/O schedulers, and kernel parameters to maximize database throughput and minimize latency.
Configure Linux transparent huge pages and memory optimization for database workloads
Learn to configure transparent huge pages (THP) and optimize Linux memory management for database workloads. Covers THP disable/enable strategies, performance monitoring, and automation with systemd.
Configure Linux swap space with memory management and performance optimization
Set up and optimize Linux swap space for better system performance. Learn to create swap files, configure swappiness parameters, and monitor memory usage across different Linux distributions.
Configure Linux container memory limits and monitoring with systemd and cgroups v2
Set up memory limits and monitoring for containers using systemd services and cgroups v2 to prevent OOM kills and track resource usage.
Fix high load average with low CPU usage on web servers
Diagnose and resolve high load average issues when CPU usage remains low on Linux web servers. Learn to identify I/O bottlenecks, blocked processes, and system resource contention affecting performance.
Configure Linux memory cgroups v2 with systemd for advanced process isolation and resource control
Set up cgroups v2 unified hierarchy with systemd to implement memory limits, isolation policies, and automated pressure responses for container workloads and system processes.
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