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Security & access

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Security & access

5 tutorials

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.

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.

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.

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.

Illustrative Access, Tunnel and Origin concept in a WIUNIX Academy security studio

Security2025/10/12

Set up Cloudflare Tunnel and Access for a private web app on Ubuntu and Debian

Publish a private web app through an outbound tunnel and identity policy. Keep tokens protected, isolate the origin, verify denied access and retain a recovery path.