I am trying to figure out how I can retain personal SSH keys (probably the most important part, or at least important to have an alternative connection method) while also having modern tools like SSO or at least SAML, some way to federate to different ADs.
I know there are a few things out there like Authentik and Authelia, but not 100% sure Authentik covers those needs above. Does anyone have experience with these or other modern LDAP alternatives that work well with Linux?
This is what I’ve read about where users in AD can be federated to FreeIPA: https://www.freeipa.org/page/V4/One-way_trust. Not sure if this covers your use case
I think my main concern is FreeIPA’s longevity. As a tool, it’s rather outdated even in its latest version. It works, but the upkeep on it is not quite robust. Its implementation of AD standards are also limited. This is why I’m looking for an alternative to FreeIPA.