Tine includes groupware core plus optional business modules. Hardening should focus on role separation, API exposure, and secure module lifecycle management.
¶ 1) Enforce role and tenant boundaries
- Assign minimum rights per business role.
- Restrict global admin privileges and review role drift regularly.
- Disable modules not required for your deployment.
- Use centralized identity and MFA where possible.
¶ 2) Secure API and synchronization endpoints
- Expose only required APIs and synchronization interfaces.
- Enforce HTTPS and secure cookie/session settings.
- Apply rate limits for login and API token endpoints.
- Keep backend database and cache queues private.
- Patch Tine and PHP/runtime dependencies frequently.
- Back up configuration, DB, and attachments with restore tests.
- Audit permission changes and integration token use.
- Maintain separate staging and production environments.
- Tine documentation: https://docs.tine.org/
- Tine source repository: https://github.com/tinegroupware/tine
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