Re: strawman proposal: homed directories for users

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On Fr, 04.10.24 11:20, Neal Gompa (ngompa13@xxxxxxxxx) wrote:

> > The primary purpose of systemd-homed is to use per-user encryption
> > using loopback devices. This still has various problem related to
> > resizing and suspend. Work is being done [see 3,4 for recent developments],
> > but it's not at a point where we can recommend it.
> > But systemd-homed has a mode where the user "home" is just a normal
> > directory or btrfs subvolume with some metadata stored in files [5].
> > Some work would be needed [6] to make this work smoothly, but it
> > doesn't seem like too much. (Mostly filing down some rough edges
> > in systemd-homed and adding pam_home_systemd and nss_systemd
> > in various authselect profiles.)
> >
> > Thus the question: would this be something worth looking into?
>
> When this was first explored a few years ago, the main problem that
> came up was that homed is functionally incompatible with centralized
> login systems (SSSD to FreeIPA/AD, OIDC, etc.). If this has changed,
> then it would make sense to revisit.

Well, you are comparing apples and oranges here. sssd/freeipa provides
some users to the system, as does the traditional /etc/passwd system,
and now homed some more.

You should be able to combine the three sources of users freely
without problems – if you like. But these three sources of user
definitions should be on similar footing, and not try to abstract each
other.

Hence: if you have some user in ldap/ipa, and another in homed, that's
entirely fine, they should not affect each other.

Lennart

--
Lennart Poettering, Berlin
-- 
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