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SSSD vs Rauthy: catalog facts
SSSD	Rauthy
Free Free and open source.	Free Free and open source.
Linux	Web, Self-hosted
Joins Linux machines to Active Directory, FreeIPA or LDAP Uses remote identities and domain policies for login	OIDC and OAuth 2 single sign-on PAM support for Linux logins
Linux only Requires an existing directory or identity domain to connect to	Smaller community than established IAM servers Requires running and maintaining your own server
Downloadable app	Self-hosted
Open source	Open source
License not stated	License not stated
Not stated if an account is 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 October 1, 2026	Official website Full listing and sources Checked October 1, 2026

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