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LDAP to UNIX user proxy (lemmy.ml)

submitted 6 months ago by kevincox@lemmy.ml to c/selfhosted@lemmy.world

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Is there any service that will speak LDAP but just respond with the local UNIX users?

Right now I have good management for local UNIX users but every service wants to do its own auth. This means that it is a pain of remembering different passwords, configuring passwords on setting up a new service and whatnot.

I noticed that a lot of services support LDAP auth, but I don't want to make my UNIX user accounts depend on LDAP for simplicity. So I was wondering if there was some sort of shim that will talk the LDAP protocol but just do authentication against the regular user database (PAM).

The closest I have seen is the services.openldap.declarativeContents NixOS option which I can probably use by transforming my regular UNIX settings into an LDAP config at build time, but I was wondering if there was anything simpler.

(Related note: I really wish that services would let you specify the user via HTTP header, then I could just manage auth at the reverse-proxy without worrying about bugs in the service)

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[–] kevincox@lemmy.ml 3 points 6 months ago (1 children)

Yes, LDAP is a general tool. But many applications that I am interested in using it for user information. That is what I want to use it for. I'm not really interested in storing other data.

I think you are sort of missing the goal of the question. I have a bunch of self-hosted services like Jellyfin, qBittorrent, PhotoPrism, Metabase ... I want to avoid having to configure users in each one individually. I am considering LDAP because it is supported by many of these services. I'm not concerned about synchronizing UNIX users, I already have that solved. (If I need to move those to LDAP as well that can be considered, but isn't a goal).