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

146 guides

Security

Firewalls, hardening, encryption, access control

45 guides

Performance

Caching, optimization, profiling, load testing

97 guides

Databases

MySQL, PostgreSQL, Redis, backups, replication

61 guides

Networking

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

158 guides

DevOps

CI/CD, Docker, Kubernetes, automation

169 guides

Monitoring

Logging, alerting, metrics, observability

Most viewed

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

hosting

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

monitoring

5,671

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

hosting

4,707

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

databases

4,125

Install and configure Ollama for local AI models on Linux servers

devops

4,083

Recently published

Configure PostgreSQL 17 SSL encryption and certificate-based authentication

databases

1 week ago

Set up HAProxy SSL termination with Let's Encrypt certificates

networking

1 week ago

Configure HAProxy with Consul for dynamic service discovery

networking

2 weeks ago

Configure PostgreSQL 17 connection pooling with PgBouncer for high availability

databases

2 weeks ago

Configure Kubernetes secrets management with External Secrets Operator and HashiCorp Vault

devops

3 weeks ago

"compliance auditing" × Clear all

security Advanced

Configure SSH certificate authentication with CA signing for secure server access

Set up SSH certificate-based authentication using a Certificate Authority to eliminate individual key management. Create signed user certificates that provide secure, scalable access control for multiple servers and users.

45 min 4 distros 535 views

networking Advanced

Implement Kubernetes network policies with Calico for microsegmentation

Configure Calico CNI to enforce network policies for pod-to-pod traffic control and namespace isolation. This tutorial covers advanced microsegmentation patterns, ingress/egress rules, and policy monitoring for production Kubernetes security.

45 min 4 distros 868 views

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