Re: [webmin-l] Users and Groups module misfiring

[Bill A. <waa...@re...>]

On Tuesday 24 January 2006 22:23, Jamie Cameron wrote:
> On Wed, 2006-01-25 at 10:06, William Arlofski wrote:
> > Jamie Cameron wrote:
> > > On Wed, 2006-01-25 at 09:21, William Arlofski wrote:
> > >>A client of mine just reported a STRANGE problem when trying to create
> > >>new users in WebMins "Users and Groups" Module. I have spent the last
> > >>hour troubleshooting and verifying this. What follows is a description
> > >>of what is happening to the system files (/etc/passwd and /etc/shadow)
> > >>as well as the Samba user file (smbpasswd) when a new users is added
> > >> and later edited.
> > >>
> > >>They are currently using Webmin 1.250
> > >>
> > >>
> > >>Create a new user with
> > >>
> > >>id: first_last
> > >>
> > >>User ID: choose text field and type 9999
> > >>select "normal password" radio button and type in "password" (no
> > >> quotes) choose primary group
> > >>
> > >>
> > >>Save
> > >>
> > >>/etc/passwd now contains:
> > >>
> > >>first_last:x:9999:6000:Test User:/home//students/first_last:/bin/false
> > >>
> > >>(which is correct except for the TWO slashes between home and student=
s)
> > >>
> > >>the /etc/shadow file looks like:
> > >>
> > >>first_last:$1$38139902$erEXj5Hm2wp4Dp4qUTzvO0:13172::::::
> > >>
> > >>Which looks correct.
> > >>
> > >>
> > >>BUT, Samba's smbpasswd file contains:
> > >>
> > >>first_last:9999:XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX:XXXXXXXXXXXXXXXXXXXX=
XX
> > >>XXXXXXXXXX:[U ]:LCT-43D6A303:
> > >>
> > >>it is not wrapped in the smbpasswd file. Notice there is no password =
so
> > >>he can not log in to the Samba Domain controller.
> > >>
> > >>
> > >>But wait... Maybe I didn't actually select the "Normal Password" radio
> > >>button when I entered him - even though I did. (This is where it gets
> > >>really strange)
> > >>
> > >>Go back and edit the user:
> > >>
> > >>switch the "Pre encrypted passwrod" radio button to "Normal Password"
> > >>and retyp his password.
> > >>
> > >>Click SAVE...
> > >>
> > >>
> > >>NOW...
> > >>
> > >>/etc/password contains:
> > >>
> > >>first_lastfirst_last:x:9999:6000:Test
> > >>User:/home//students/first_lastfirst_last:/bin/false
> > >>
> > >>(not wrapped of course)
> > >>
> > >>/etc/shadow contains:
> > >>
> > >>first_lastfirst_last:$1$38140733$C29l/0szvz337yXUOwMB3/:13172::::::
> > >>
> > >>AND SMBPASSWD CONTAINS:
> > >>first_lastfirst_last:9999:XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX:XXXXXXXXXX=
XX
> > >>XXXXXXXXXXXXXXXXXXXX:[U ]:LCT-43D6A641:
> > >>
> > >>
> > >>HHHM!   So I go re-edit the user and notice that his name appears twi=
ce
> > >>in the list of users and in the id field... so I strip off the 2nd
> > >>iteration of his name, set his password again and save:
> > >>
> > >>NOW, /etc/passwd contains:
> > >>
> > >>first_lastfirst_last first_last:x:9999:6000:Test
> > >>User:/home//students/first_lastfirst_last first_last:/bin/false
> > >>
> > >>
> > >>And so on... As it is, Webmin's "Users and Groups" module is no longer
> > >>funtional at my client's site. If there a fix, or if can I provide mo=
re
> > >>information to help solve thess issues please let me know.
> > >
> > > That is extremely strange,
> >
> > Agreed...
> >
> > > and certainly doesn't happen on my system!
> > > What operating system are you running Webmin on there?
> > >
> > >  - Jamie
> >
> > The system is an older RedHat 6.2 system that has had Webmin as its
> > interface for my clients since about December 2000.   Never saw such a
> > funky set of symptoms.
> >
> > As it stands, I can add a user by manually issuing the three commands:
> >
> > # useradd (with all appropriate parameters)
> > # passwd   to set the UNIX password
> > # smbpasswd   and re-typing their samba password twice.
>
> Of those, Webmin actually only uses smbpasswd .. for the user creation,
> it modifies /etc/passwd directly.

Hmmm, perhaps something has gone awry with the smbpasswd file that webmin i=
s=20
calling... I'll check the users and groups module's config as well as the=20
samba module's config to be 100% sure that it is not calling a=20
stray/old/leftover smbpasswd all of a sudden.

But even so, I'd like to keep in mind another odd thing that I reported whi=
ch=20
is that when I go to EDIT a current user the user's ID on the edit page has=
=20
their id automatically inserted twice into the text field. I'll double-chec=
k=20
this on a few users and report back on this, perhaps in a separate thread.=
=20

> > So I know the base command line tools are fully functional.
> >
> > Is there something I can set within webmin to have that module log some
> > debugging information to help track this down? Obviously something is
> > wrong but it is eluding me.
>
> You might want to check out the Webmin Actions Log module, which records
> exactly what changes are made to what files, and what commands are run
> (assuming full logging is enabled).


Looks like FULL logging was/is enabled.  I just checked and the only thing=
=20
that was not enabled was" Record all modified files before actions, for=20
rollbacks". I just checked that box, but it is probably not necessary.


The "Action Details" for that user creation test show that=20
useradmin/save_user.cgi was run and the it created the=20
directory /home/students/first_last with two forward slashes between home a=
ns=20
students, and the data it put into /usr/local/samba/private/smbpasswd was a=
ll=20
XXXXs. I know the two slashes will not affect/break anything, but they were=
=20
never appearing before.=20

Here is a the complete text of that "Action Details" page:

(please ignore the wrapping by my email client on this paste)

=2D-[snip]--=20
Created directory /home//students/first_last
=20
 Executed command
  cp -R \/etc\/skel\/Psidata \/home\/\/students\/first_last\/Psidata=20

  Executed command
  chown  -R 9999:6000 "/home//students/first_last/Psidata"=20

  Executed command
  cp \/etc\/skel\/\.bash_logout \/home\/\/students\/first_last\/\.bash_logo=
ut=20

  Executed command
  cp \/etc\/skel\/\.bash_profile=20
\/home\/\/students\/first_last\/\.bash_profile=20
=20
  Executed command
  cp \/etc\/skel\/\.bashrc \/home\/\/students\/first_last\/\.bashrc=20
=20
  Executed command
  ln -s Psidata \/home\/\/students\/first_last\/\.psi=20
=20
 Executed command
  chown -h -R 9999:6000 "/home//students/first_last/.psi"=20

  Executed command
  cp \/etc\/skel\/\.screenrc \/home\/\/students\/first_last\/\.screenrc=20

  Executed command
  cp -R \/etc\/skel\/\.profile \/home\/\/students\/first_last\/\.profile=20

  Executed command
  chown  -R 9999:6000 "/home//students/first_last/.profile"=20

  Changed file /etc/passwd
  467a468
> first_last:x:9999:6000:Test User:/home//students/first_last:/bin/false

  Changed file /etc/shadow
  471a472
> first_last:$1$38139902$erEXj5Hm2wp4Dp4qUTzvO0:13172::::::

  Changed file /usr/local/samba/private/smbpasswd
  436a437
>=20
first_last:9999:XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX:XXXXXXXXXXXXXXXXXXXXXXXXXX=
XXXXXX:
[U          ]:LCT-43D6A303:

=2D-[snip]-- =20


> By the way, which theme do you have selected in Webmin?
>
>  - Jamie

MSC.Linux Theme


Thanks again Jamie

=2D -
Bill Arlofski
Reverse Polarity
waa...@re...