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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50 guides

Linux

System administration, shell scripting, package management

66 guides

Hosting & Servers

Web servers, reverse proxies, SSL, domains

147 guides

Security

Firewalls, hardening, encryption, access control

45 guides

Performance

Caching, optimization, profiling, load testing

99 guides

Databases

MySQL, PostgreSQL, Redis, backups, replication

62 guides

Networking

DNS, load balancing, VPN, TCP/IP, routing

161 guides

DevOps

CI/CD, Docker, Kubernetes, automation

174 guides

Monitoring

Logging, alerting, metrics, observability

Most viewed

Install and configure Deno for web development with systemd and reverse proxy

hosting

10,971

Fix apt update E: Repository no longer has a Release file

linux

8,351

Install and configure Uptime Kuma for website monitoring with SSL and email alerts

monitoring

6,880

Install and configure Caddy web server with automatic HTTPS and reverse proxy

hosting

6,052

Install and configure TimescaleDB with PostgreSQL for high-performance time-series data

databases

5,533

Recently published

Check disk space usage on Linux with df and du commands

linux

1 day ago

Find and kill processes using a specific port on Linux

linux

5 days ago

Fix PostgreSQL FATAL sorry, too many clients already

linux

1 week ago

Configure Istio multi-cluster disaster recovery and automated failover

devops

2 weeks ago

Set up automated MariaDB Galera cluster backups with compression

databases

1 month ago

"optimization" × Clear all

hosting Intermediate

Install and configure NGINX with HTTP/3 and modern security headers

Set up NGINX with HTTP/3 and QUIC support for faster web performance. Configure SSL certificates, implement modern security headers like CSP and HSTS, and optimize for production workloads.

25 min 6 distros 1,862 views

devops Intermediate

Install and configure Ollama for local AI models on Linux servers

Set up Ollama to run large language models locally on your Linux server. This tutorial covers installation, GPU acceleration, model deployment, API configuration, and performance optimization.

25 min 6 distros 5,454 views

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