Build two encrypted spoke links, exchange exact LAN prefixes with eBGP, observe kernel routes and rehearse withdrawal without losing the management path.

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Databases

PostgreSQL with Patroni: replication, quorum and safe switchover

Build a fresh PostgreSQL18/Patroni lab with TLS, three-member etcd quorum, WAL checks and a planned switchover, with explicit fencing and recovery limits.

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Security

Fail2ban for Nginx: trustworthy logs, scoped bans and recovery

Trace repeated HTTP authentication failures from a minimal Nginx log to a dedicated jail, rehearse safely, then activate a narrowly scoped host firewall action.

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THE KNOWLEDGE LIBRARY

Latest tutorials

20 tutorials · Page 1 / 2

Storage2025/10/23

MinIO S3 Object Storage Setup – Nginx TLS, Users, Buckets & Backups

Choose a resilient topology, separate API and console exposure, create scoped policies, enable versioning, and test restore paths.

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Security2025/10/21

CrowdSec Nginx Bouncer Protection: Abuse Blocking & Rate Limiting

Parse trustworthy logs, evaluate scenarios, enforce decisions at Nginx, and test remediation without creating a new outage path.

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Security2025/10/21

Vaultwarden Self Hosted HTTPS: Secure Docker Setup with Nginx, TLS, and Admin Token

Deploy Vaultwarden on loopback, protect the admin token, proxy it safely, and prove recovery before storing real credentials.

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Containers2025/10/21

Private Docker Registry HTTPS: Secure Setup with Nginx and Basic Auth

Deploy CNCF Distribution with persistent storage, bcrypt authentication, correct proxy headers, backups, and push/pull verification.

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Security2025/10/18

OpenVPN Server with Google Authenticator MFA: UDP 1194, Easy-RSA, PAM MFA

Combine certificate identity, PAM-backed TOTP, recovery controls, and staged rollout without weakening the VPN's TLS layer.

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Web Infrastructure2025/10/15

HAProxy Load Balancer with Let's Encrypt: HTTPS Frontend + Two Backends

Build a certificate bundle, preserve ACME renewal, validate proxy headers, and roll backend changes safely.

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Illustrative network lab with seated operator and a hub/spoke DEMO diagram.

Networking2025/10/14

WireGuard hub and spoke with filtered BGP and FRRouting

Build two encrypted spoke links, exchange exact LAN prefixes with eBGP, observe kernel routes and rehearse withdrawal without losing the management path.

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Illustrative WIUNIX Academy studio with a seated operator and PostgreSQL, Patroni and etcd concept diagram.

Databases2025/10/13

PostgreSQL with Patroni: replication, quorum and safe switchover

Build a fresh PostgreSQL18/Patroni lab with TLS, three-member etcd quorum, WAL checks and a planned switchover, with explicit fencing and recovery limits.

Read tutorial

Illustrative WIUNIX Academy studio with seated operator and DEMO Nginx log-to-Fail2ban diagram.

Security2025/10/13

Fail2ban for Nginx: trustworthy logs, scoped bans and recovery

Trace repeated HTTP authentication failures from a minimal Nginx log to a dedicated jail, rehearse safely, then activate a narrowly scoped host firewall action.

Read tutorial

Illustrative Academy studio: seated operator and physical DEMO Compose monitoring diagram.

Monitoring2025/10/13

Prometheus and Grafana with Docker Compose: private monitoring and recovery

Build a private monitoring stack with pinned images, service discovery, provisioned dashboards, persistent data and a safe backup/restore rehearsal.

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Illustrative WIUNIX Academy studio: seated operator, correctly oriented workstation and Traefik HTTP3 concept diagram.

Networking2025/10/13

Set up Traefik with Let’s Encrypt and HTTP/3 on Ubuntu and Debian

Build a dedicated Traefik edge with verified TLS, a loopback origin and private dashboard. Separate staging from production, prove HTTP/3 and protect certificate recovery.

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Illustrative WIUNIX Academy Caddy lab with Yuna seated at the keyboard, a configuration monitor and a private server.

Web Infrastructure2025/10/12

Set up Caddy with automatic HTTPS, step by step

Choose your Linux version, install Caddy, connect a private backend and verify automatic HTTPS—with copyable commands, expected results and fixes for common errors.

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