Web & Proxy · Security
Configure an Nginx reverse proxy with TLS renewal
Proxy an HTTP application through Nginx, preserve client metadata, obtain a certificate, and test renewal.
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Operational guides
Complete procedures with a way back.
Searchable, versioned procedures with prerequisites, verification, concrete output, and rollback.
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Security · Services & Applications
Protect SSH and web authentication with Fail2ban
Use local jail overrides, verify filters against real logs, test bans safely, and retain an unban path.