SSO Manager

A self-hosted OpenID Connect provider with a bundled OpenLDAP directory and a web management UI — for home labs and small businesses that want their own identity provider instead of a hosted one.

One place to manage your users and groups, one login (OIDC) your modern apps can use, and one LDAP directory your older or odder apps can bind to directly. Everything runs on your own hardware; no phone-home, no hosted control plane, no per-user pricing.

Part of the theta42 self-hosted identity stack, alongside Proxy (an OIDC + LDAP-aware reverse proxy) and theta-env (the two composed with one command).

Screenshots

Overview dashboard User list Groups Directory & inventory OAuth client (edit view)

(click any screenshot to view full size)

Why this over the alternatives

Tools like Keycloak, Authentik, Authelia, or Zitadel are OIDC providers, but LDAP is either a paid feature, a federation target you have to run separately, or absent. If your stack already has apps that speak LDAP directly — or you just want one real directory as the source of truth — you end up running two identity systems and keeping them in sync.

SSO Manager bundles the OpenLDAP directory with the OIDC provider, so OIDC apps and LDAP apps read from the same users and groups. The trade-off is scope: it’s intentionally small and self-hosted, not an enterprise IAM suite. If you want a lightweight, self-contained identity provider with a real LDAP backend, that’s the niche.

Features

  • OpenID Connect / OAuth 2.0 provider — your own access/refresh/ID tokens; standard discovery document at /.well-known/openid-configuration.
  • Bundled OpenLDAP directory — users, groups, POSIX accounts, SSH public keys, and sudo roles, with memberOf + referential-integrity overlays.
  • Web management UI — users, groups, and OAuth clients from a browser; invite and password-reset flows over email; self-service profile + API tokens.
  • Direct LDAP binds — anything that binds LDAP directly (Linux hosts via PAM/SSSD, Gitea, Emby, …) uses LDAPS/StartTLS against the same directory.
  • All-in-one Docker image — app + OpenLDAP + Redis in one container, or run the pieces separately via app_* env config.
  • Geo-Location Scaling — built-in support for N-Way Multi-Master OpenLDAP replication across physical sites.
  • Directory & Inventory — map sites, hosts, and services as a graph with rich metadata (IP/MAC, OS/kernel, ports, git repos), auto-provisioned access groups, and automatic registration from theta-env and ldap-client. Drives directory-aware tools like the SSH jump host.

Get it

git clone https://github.com/theta42/sso-manager-node.git
cd sso-manager-node
cp secrets.js.example nodejs/conf/secrets.js   # edit it, or use app_* env
docker compose up -d --build

For the full set of install options (Docker, bare-metal, or as part of the combined SSO + proxy stack), the app_* env reference, and the OAuth/LDAP internals, see the GitHub repository.

  • Proxy — an OIDC + LDAP-aware reverse proxy, designed to sit in front of this SSO.
  • Jump Host — an SSH jump host that uses this SSO’s directory to decide who may reach which machine.
  • theta-env — runs this SSO Manager and the proxy together with one command.