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?
It’s my understanding that FreeIPA can federate with Active Directory, but personally I haven’t tried that myself. As for Authentik, it looks interesting but it’s the first I’ve heard of it. I also rely on FreeIPA’s certmonger implementation, so I wonder if Authentik could replace that?
Just to understand your use case, you have users in Active Directory where you want to manage SSH keys and be able to login via SSH to linux machines?
Yeah, users in AD and the FreeIPA replacement essentially handles the SSH key management + middle-man the auth to Linux servers.
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