Date: Thu, 5 Sep 2002 09:33:21 +0200 From: Ruben de Groot <fbsd-q@bzerk.org> To: "Brian T. Schellenberger" <bts@babbleon.org> Cc: Matthew Seaman <m.seaman@infracaninophile.co.uk>, freebsd-questions@FreeBSD.ORG Subject: Re: passwd: Permission denied Message-ID: <20020905073321.GA65524@ei.bzerk.org> In-Reply-To: <200209042156.04364.bts@babbleon.org> References: <200209041755.24531.bts@babbleon.org> <20020904231555.GC28529@happy-idiot-talk.infracaninophi> <200209042156.04364.bts@babbleon.org>
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On Wed, Sep 04, 2002 at 09:56:03PM -0400, Brian T. Schellenberger typed:
>
> I was trying to change the password from an xterm where I had done an
>
> su - baduser
>
> to change to the userid. I thought that with the - option su acted
> "just like" a login, but I was wrong. When I actually logged in from a
> console window, it worked just fine.
>
> Live and learn.
>
> Does anybody know how su - differs from a "real" login, exactly?
It's a matter of real and effective user id. Use
su - baduser
passwd baduser
to change this user's password, or just passwd baduser (as root).
>
> Is there a way to "log in" for real in an X window? If I try "login" it
> says "not a login shell" and if I try telnet, I am reminded that I
> chose not to set up a local telnet server--and it seems like a pretty
> significant security comprimise if I have to set up a telnet server
> just to allow local login in an X window.
>
> Not that it's that big a deal, really--I only rarely need to do "real"
> login things and for that I *can* switch to a console--but I would like
> to know on general principles . . .
>
>
>
>
>
> | When you cloned the account did you perhaps not give it a unique UID
> | number? This snippet will print out how often each UID number is
> | mentioned in the master.passwd file:
> |
> | awk -F: '{ print $3 }' < /etc/master.passwd | sort -n | uniq -c
> |
> | It can also occur if you remove the SUID bit from /usr/bin/passwd or
> | mount /usr nosuid, but then no one other than root would be able to
> | change passwords.
> |
> | Cheers,
> |
> | Matthew
>
> --
> Brian, the man from Babble-On . . . . bts@babbleon.org (personal)
>
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