[rhn-users] passwords: UNIX to Linux

[Charith Perera]

On Wednesday 13 October 2004 2:54 pm, Jonathan Fischer wrote:
> If the super-user can see usernames just fine, but no one else, it might be
> that the permissions on /etc/passwd are incorrect.

I'm using NIS, and I've configured the client in the identical manner as done 
previously. However, this is the first time I'm using a Linux machine as the 
NIS server. Is there anything preventing a non-super user from querying the 
NIS database?

Thanks,

Charith.













>
> -----Original Message-----
> From: rhn-users-bounces at redhat.com [mailto:rhn-users-bounces at redhat.com] On
> Behalf Of Doerbeck, Christoph Sent: Wednesday, October 13, 2004 11:47 AM
> To: cperera at intertechmedia.com; Red Hat Network Users List
> Subject: RE: [rhn-users] passwords: UNIX to Linux
>
> No utility as best I know.  Password encryption is a one-way hash,
> meaning there's no way to recover the original from an encrypted
> (cipher) text.  Without the original, you can create a new one.
>
> I am fairly certain that nothing is blocking you from using both
> in the /etc/shadow.  Again, the glibc crypt function is intelligent
> enough to know which (DES vs. MD5) to use during verification.
>
> Seeing ID's versus names is an indicator that the userid's are
> not correct.  You probably ran useradd to create new users and
> then tar'd/copied the data directories over.  You can either
> adjust the userid's in /etc/shadow, or change ownerships (chown).
>
> You have some work to do ;-)
>
>
>
> Christoph
>
> -----Original Message-----
>
> Is there a utility that can convert the DES passwords so that they're
> encrypted using md5?
>
> Also, the super user seems to be able to figure out the usernames for
> maching IDs. For example, when i do a directory listing, I see all the
> ownerships properly. However, when I su into another user, I get the
> following message
>
> id: cannot find name for the user ID ****
>
> Also a directory listing shows the userid instead of the username for
> file/directory ownerships.
>
> Any ideas?
>
> Charith Perera.
>
> > -----Original Message-----
> > From: Charith Perera [mailto:cperera at intertechmedia.com]
> > Sent: Wednesday, October 13, 2004 11:34 AM
> > To: Red Hat Network Users List
> > Subject: Re: [rhn-users] passwords: UNIX to Linux
> >
> >
> > Dr. Schmidt,
> >
> > Thanks, I didn't notice the -p switch earlier.
> >
> > Providing the cryptic password worked. However, when I look at the
> > /etc/shadow file the encrypted passwords created on the Linux machine are
> > much longer than those copied over from the Solaris box. Any idea why
> > this is and where I can get more info regarding it.
> >
> > Thanks,
> >
> > Charith Perera
> >
> > On Wednesday 13 October 2004 11:11 am, Dr. Guenter Schmidt wrote:
> > > Charith Perera wrote:
> > > >I'm in the process of moving one of our servers from a machine running
> > > > Solaris to one running RHEL AS. How do I go about transferring all
> > > > the users' passwords onto the linux machine.
> > >
> > > If the old passwords are in /etc/passwd or /etc/shadow extract that
> > > field and use the old passwords as input to the useradd command:
> > >
> > > useradd -u $uid -g $gid -p $passwd -d $home -s $shell -c $gcos  $login
> > >
> > >
> > > --
> > > Dr. Günter Schmidt                 | Bruker BioSpin GmbH
> > >
> > >                                    | NMR Software Department
> > >
> > > E-Mail: guenter.schmidt at bruker.de  | Silberstreifen
> > > Phone: +49 721 5161-443 / Fax:-480 | D-76287 Rheinstetten
> > >
> > >
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