Re: addendum, Re: One-user system.

From	Greg Wooledge <greg@wooledge.org>
Newsgroups	linux.debian.user
Subject	Re: addendum, Re: One-user system.
Date	2022-02-11 13:40 +0100
Message-ID	<DPDnr-14Sq-3@gated-at.bofh.it> (permalink)
References	<DPuDv-ZBX-1@gated-at.bofh.it> <DPuNb-ZF1-3@gated-at.bofh.it> <DPw2B-10jT-3@gated-at.bofh.it>
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On Thu, Feb 10, 2022 at 09:48:40PM -0700, Charles Curley wrote:
> Interesting. I routinely log in as my non-root user, charles, and then
> 'su -', which gets me a root shell. I can then run X programs just
> fine. So your comment above got me curious.
> 
> charles@jhegaala:~/Desktop$ su -
> Password: 
> 
> Today is Sweetmorn, the 41st of Chaos, 3188. Lies and slander, sire! 
> root@jhegaala:~# echo $XAUTHORITY 
> /home/charles/.Xauthority
> root@jhegaala:~# 
> 
> So I expect that something has already done the export for me, and it
> is unnecessary.

unicorn:~$ echo "$XAUTHORITY"
/home/greg/.Xauthority
unicorn:~$ su
Password: 
root@unicorn:/home/greg# echo "$XAUTHORITY"
/home/greg/.Xauthority
root@unicorn:/home/greg# 
exit
unicorn:~$ su -
Password: 
root@unicorn:~# echo "$XAUTHORITY"

root@unicorn:~# 
logout

That makes me curious about what has been done to your system, which
is clearly behaving differently from mine.  "su" with no arguments
preserves the environment, but "su -" establishes a new environment
and launches a login shell.  The XAUTHORITY variable should be lost,
but perhaps something in your shell profile(s) is recreating it.

Thread

addendum, Re: One-user system. peter@easthope.ca - 2022-02-11 04:20 +0100
  Re: addendum, Re: One-user system. Greg Wooledge <greg@wooledge.org> - 2022-02-11 04:30 +0100
    Re: addendum, Re: One-user system. Charles Curley <charlescurley@charlescurley.com> - 2022-02-11 05:50 +0100
      Re: addendum, Re: One-user system. Greg Wooledge <greg@wooledge.org> - 2022-02-11 13:40 +0100
        Re: addendum, Re: One-user system. <tomas@tuxteam.de> - 2022-02-11 14:00 +0100
        Re: addendum, Re: One-user system. Charles Curley <charlescurley@charlescurley.com> - 2022-02-11 17:50 +0100
    Re: addendum, Re: One-user system. Klaus Singvogel <deb-user-ml@singvogel.net> - 2022-02-11 15:50 +0100

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