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
Configure Linux system time synchronization with chrony and NTP hardening
linuxInstall 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
hostingSet up Node.js application security with Helmet and rate limiting
securityInstall and configure PostgreSQL 17 with performance tuning and security hardening
databasesRecently published
Monitor Jetty performance with JMX and Grafana dashboards
monitoringConfigure FRRouting route maps and prefix lists for advanced routing policies
networkingConfigure Jetty clustering and session replication for high availability
hostingConfigure Cherokee web server with MySQL database optimization and performance tuning
hostingConfigure Cassandra SSL encryption and authentication with security hardening
databasesConfigure Linux system monitoring with iostat and disk performance analysis
Learn to monitor disk I/O performance with iostat from the sysstat package. Set up real-time monitoring, identify bottlenecks, and automate disk performance analysis with systemd timers.
Benchmark and optimize Linux disk I/O performance with fio testing
Learn how to benchmark disk I/O performance using fio (Flexible I/O tester) to identify storage bottlenecks and optimize your Linux system's disk performance through comprehensive read/write testing and analysis.
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.
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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