Deploy a digest-pinned OCI registry with loopback-only publishing, bcrypt, streamed uploads, protected client credentials and consistent storage maintenance.

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Security

OpenVPN MFA with client certificates and Google Authenticator

Build an isolated OpenVPN pilot with personal TOTP, PAM, exact certificate CN binding, replay controls and private recovery while retaining certificate validation.

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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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Illustrative DEMO studio with a seated operator, laptop and HTTPS, Vaultwarden and backup diagram.

Security2025/10/21

Self-host Vaultwarden with HTTPS, restricted admin access and consistent backups

Deploy community Vaultwarden with a digest-pinned image, loopback backend, private admin PHC, closed signups and a coordinated recovery plan.

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Illustrative registry teaching studio with seated operator, laptop and HTTPS-to-storage DEMO board.

Containers2025/10/21

Private Docker registry with Nginx HTTPS and native authentication

Deploy a digest-pinned OCI registry with loopback-only publishing, bcrypt, streamed uploads, protected client credentials and consistent storage maintenance.

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Illustrative security training studio with seated operator, personal phone and certificate/TOTP VPN diagram.

Security2025/10/18

OpenVPN MFA with client certificates and Google Authenticator

Build an isolated OpenVPN pilot with personal TOTP, PAM, exact certificate CN binding, replay controls and private recovery while retaining certificate validation.

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Illustrative teaching lab with a seated operator, rack servers and a HAProxy HTTPS DEMO board.

Web Infrastructure2025/10/15

HAProxy with Let’s Encrypt and validated certificate renewal

Balance two HTTP backends behind HAProxy TLS, preserve HTTP-01, sanitize proxy headers and deploy renewed certificates with validation and rollback.

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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.

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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.

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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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