ssh to a device failing

^{Originally posted by **ammaratef45** April 28, 2026}
Hello, I'm following [this documentation](https://docs.goauthentik.io/endpoint-devices/) to try and ssh into hosts using `libpam-authentik` and `libnss-authentik`

After few hours of debugging (included confirming my pam setup, using getent to verify the host knows about the users, re-reading the documentation few times) I finally found the issue (or an issue at least haha)

```
libpam-authentik[839317]: failed to init interactive auth: code: 'The service is currently unavailable', message: "Interactive authentication not available"
```

I couldn't wrap my head around this, all I could guess is that `ak-agent` is the service in questions, I noticed something interesting. when checking the service status without sudo (`systemctl status --user ak-agent.service`) I see the service running and doing well (no errors).
Add sudo to that same command and this error shows: `Failed to connect to bus: No medium found`

Help debugging this would be greatly appreciated <3