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Groups > linux.debian.user > #157267

Re: "su is really a broken concept"

From Jonathan de Boyne Pollard <J.deBoynePollard-newsgroups@NTLWorld.com>
Newsgroups linux.debian.user
Subject Re: "su is really a broken concept"
Date 2015-09-01 02:50 +0200
Message-ID <q3HVT-7oG-5@gated-at.bofh.it> (permalink)
References <q3AhH-4P7-9@gated-at.bofh.it>
Organization linux.* mail to news gateway

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Lennart Poettering 
(https://github.com/systemd/systemd/issues/825#issuecomment-127917622):

> Long story short:  su is really a broken concept.
>

Christian Seiler:
>
> So it's not like su is suddenly broken - it's just that some specific 
> new use cases don't work properly with it.
>

A fair number of people got their backs up for the very reason that su 
was described as "broken".  One could, of course ask whether in fact it 
is the XDG Base Directory Specification 
(http://standards.freedesktop.org/basedir-spec/basedir-spec-latest.html) 
that is the broken concept, for incorporating the notion of the only way 
that one reaches the point of running as any given user account being 
login.  ("the user being logged in ... the user first logs in ... the 
user fully logs out ... the user logs in more than once ... first login 
... last logout ... a full logout/login cycle")  Design a mechanism that 
at its foundation and throughout takes no account of adding other user 
account privileges into a login session with su, or indeed that 
processes wanting to create "runtime" files might be set-UID, and of 
course it will conflict.

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  Re: Another system management tool to disappear. claude juif <claude.juif@gmail.com> - 2015-08-28 17:30 +0200
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  Re: Another system management tool to disappear. Lisi Reisz <lisi.reisz@gmail.com> - 2015-08-28 23:50 +0200
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                Re: Another system management tool to disappear. "T.J. Duchene" <t.j.duchene@gmail.com> - 2015-09-01 20:20 +0200
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                Re: systemd-logind emitting messages to the terminal upon login Jonathan de Boyne Pollard <J.deBoynePollard-newsgroups@NTLWorld.com> - 2015-09-01 03:00 +0200
                Re: systemd-logind emitting messages to the terminal upon login The Wanderer <wanderer@fastmail.fm> - 2015-09-01 05:30 +0200
                Re: systemd-logind emitting messages to the terminal upon login Martin Read <zen75502@zen.co.uk> - 2015-09-01 11:40 +0200
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                Re: "su is really a broken concept" Jonathan de Boyne Pollard <J.deBoynePollard-newsgroups@NTLWorld.com> - 2015-09-01 02:50 +0200
                Re: "su is really a broken concept" "T.J. Duchene" <t.j.duchene@gmail.com> - 2015-09-01 03:00 +0200
                Re: "su is really a broken concept" Jonathan de Boyne Pollard <J.deBoynePollard-newsgroups@NTLWorld.com> - 2015-09-03 01:20 +0200
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                Re: No-one working on 'su' has stated that they will stop. Jonathan de Boyne Pollard <J.deBoynePollard-newsgroups@NTLWorld.com> - 2015-08-31 18:30 +0200
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