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Zentyal vs 389 Directory Server: catalog facts
Zentyal	389 Directory Server
Paid Yearly or lifetime licences covering unlimited users, with a free 15-day trial.	Free Free and open source.
Linux, Self-hosted	Linux, Self-hosted
Active Directory compatible domain controller for Windows clients Mail, groupware and network services in one interface	Multi-supplier replication for scaling and fail-over Proven in very large deployments
Paid licence after the trial Aimed at small and mid-sized office servers rather than home use	Linux only Requires LDAP knowledge to run well
Self-hosted, Operating system	Downloadable app, Self-hosted
Closed source	Open source
License not stated	License not stated
Not stated if an account is needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 24, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.