Re: only root allowed login ...

Herta Van den Eynde <[email protected]> Sun, 12 Jun 2011 15:56:10 +0200
Newsgroups org.kernel.vger.linux-admin
Message-ID <[email protected]>
Also check out the permissions of the directories above the users home
directories.=A0 E.g., "ls -ld /", "ls -ld /home/".

Run "last" and if the logins apear there, also check the content of
the /etc/profile and ~account-that-cannot login/.profile.


On 12 June 2011 02:07, Gerardo Juarez-Mondragon <[email protected]=
m> wrote:
>
> FTP and smtp do not require a full shell. Telnet does. The main
> difference between an ftp-only or mail-only user and a full system
> user is that the latter has a shell defined in its corresponding line
> in /etc/passwd. The others would have something like /sbin/nologin.
>
> If you can log in to ftp and transfer files back and forth, but not
> login with a shell, my guess is the user's =A0directory is not
> accessible. This could be due to a number of things:
>
> - the user's directory has been erased, or was changed in
> /etc/passwd. It could also have changed ownership (root can do that
> and it is not difficult to have it happen accidentally).
>
> - the shell field in /etc/passwd may have been erased or changed for
> that user, =A0so the account is ftp-only.
>
> Other variants that escape me now could be the cause, but the
> fundamental issue seems to be the impossibility to create a shell and
> assign a working directory to the account.
>
> Gerardo Juarez
>
>
> On Sun, Jun 12, 2011 at 12:42 AM, Markus Ko=DFmann <mkossmann_ml1@gmx=
=2Ede> wrote:
> > Am Samstag, 11. Juni 2011 schrieb terry white:
> >> ... ciao:
> >>
> >> =A0 =A0 =A0all of a sudden, i am only able to login as root. =A0th=
is is not
> >> something i was trying to accomplish, and at a loss in figuring ou=
t
> >> how i did. =A0anyway.
> >>
> >> =A0 =A0 =A0as a given, login as a valid user, with correct passwor=
d, terminated
> >> immediately, with a new login prompt. =A0invalid login attempts it=
erate
> >> until a new session initiated.
> >>
> >> =A0 =A0 =A0ftp, and smtp allowed, telnet fails.
> >>
> >> =A0 =A0 =A0i'm not seeing anything mentioned in the logs with rega=
rd to failed
> >> normal user login. =A0 i'm at a loss as to where i might start loo=
king.
> >>
> >> =A0 =A0 =A0any thoughts, suggestion would be much appreciated ...
> > hard disk full ?
> >
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