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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47 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

160 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

10,646

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

monitoring

6,515

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

linux

6,046

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

hosting

5,590

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

databases

5,097

Recently published

Set up automated MariaDB Galera cluster backups with compression

databases

1 week ago

Configure MariaDB ColumnStore for high-performance analytics workloads

databases

1 week ago

Implement Kibana 8 custom threat hunting dashboards for security incident response

monitoring

2 weeks ago

Configure Logstash 8 security pipelines with threat intelligence enrichment

monitoring

3 weeks ago

Configure Ansible Vault integration with HashiCorp Vault for secrets management

devops

3 weeks ago

"sql injection protection" × Clear all

security Intermediate

Setup Nginx with ModSecurity 3 web application firewall for advanced threat protection

Configure Nginx with ModSecurity 3 and OWASP Core Rule Set to protect web applications against SQL injection, XSS, and other common attacks. This tutorial covers complete WAF setup with security rules, performance optimization, and threat testing.

45 min 4 distros 1,284 views

security Advanced

Implement HAProxy WAF integration with ModSecurity 3 for advanced threat protection

Configure HAProxy with ModSecurity 3 using SPOE protocol to create a high-performance web application firewall that protects against OWASP Top 10 threats while maintaining load balancing capabilities.

45 min 4 distros 2,001 views

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