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