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
devopsConfigure Linux system time synchronization with chrony and NTP hardening
linuxRecently published
Configure Kubernetes network policies for enhanced cluster security
securitySet up Kubernetes persistent volume snapshots and backup automation
devopsImplement Kafka Streams exactly-once processing semantics with Java applications
devopsImplement ClickHouse backup automation with compression and S3 integration
databasesInstall and configure Filebeat 8.15 for efficient log shipping to ELK stack
monitoringFix Apache web server high memory usage and optimize performance
Diagnose Apache memory issues and optimize MPM modules, worker processes, and configuration to reduce RAM usage and improve web server performance.
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 kernel parameters with sysctl for system optimization
Learn to view, modify, and persist Linux kernel parameters using sysctl for system performance tuning. Configure network, memory, and security settings safely with temporary and permanent changes.
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.
Configure Linux CPU and process scheduling with systemd and nice priorities for workload optimization
Learn to optimize Linux workloads by configuring CPU scheduling policies, setting process priorities with nice and ionice commands, and implementing systemd service limits for better resource allocation and performance.
Configure Linux system resource limits with systemd and ulimit for application performance
Learn to configure Linux system resource limits using systemd, ulimit, and /etc/security/limits.conf to prevent application failures from resource exhaustion. Master per-user, per-service, and system-wide limits for optimal performance.
Install and configure OpenLiteSpeed web server with SSL and PHP for high-performance hosting
Set up OpenLiteSpeed web server with SSL certificates, PHP LSAPI, and built-in caching for superior performance compared to Apache and Nginx. Includes security hardening and monitoring configuration.
Optimize Linux I/O performance with kernel tuning and storage schedulers for high-throughput workloads
Learn how to optimize Linux I/O performance through kernel parameter tuning, storage scheduler configuration, and filesystem optimizations. This tutorial covers scheduler selection, queue depth tuning, and performance monitoring for high-throughput applications.
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