[CentOS] etc passwd and groups file

Carlos Santana

neubyr at gmail.com
Wed Jul 29 16:30:38 UTC 2009


Lustre 1.6+ versions do not support LDAP.

Thank you all for sighting different methods. I am exploring them for now.
More comments welcome.

-
CS.


On Wed, Jul 29, 2009 at 11:07 AM, <jacob at aers.ca> wrote:
> Pushing passwd, group and shadow files can just be scripted to scp them
> from one master machine to all the client nodes. an ssh key can be used
> with the private key only existing on the master node so only it can
> push out changes (protect it with your life as this has the potential to
> be a nasty hole) on a regular basis. remove passwd from all slave nodes
> and replace it with a script that either says to go to the master and
> change their password there or have it feed their input to the master
> via an ssh tunnel to have the change made.
>
>
> I see by Lustre's site that is supports MIT kerberos for authentication.
> this would be better then pushing out shadow, you would still need a
> tool to push out user id's though, ldap could handle this part as they
> are typically handled together, and if Lustre recognizes PAM then it
> should be transparent to it.
>
> A quick google search shows that Googlecode.com has a document
> suggesting ldap and kerb.
> http://lustrecluster.googlecode.com/files/LustreHowTo.pdf
>
> -----Original Message-----
> From: centos-bounces at centos.org [mailto:centos-bounces at centos.org] On
> Behalf Of Carlos Santana
> Sent: Wednesday, July 29, 2009 8:46 AM
> To: CentOS mailing list
> Subject: Re: [CentOS] etc passwd and groups file
>
> I intend to install lustre file system on the systems.  It does not
> support LDAP and need to have etc passwd/groups database. All file
> system clients need to have  same passwd and groups so that UID and
> GID are the same when they contact file system server. So I am not
> sure, how will I manage this. Any suggestions?
>
>
> -
> CS.
>
>
>
> On Wed, Jul 29, 2009 at 10:38 AM, John R Pierce<pierce at hogranch.com>
> wrote:
>> Carlos Santana wrote:
>>> Hi,
>>>
>>> I need to maintain a same user/group list on multiples systems. Can
> we
>>> just copy the same passwd and groups file on all machines?
>>> If we create a new user on one system then I will need to copy this
> to
>>> all other systems. This is quite cumbersome. Any suggestions?
>>>
>>
>>
>> the old fashion way of doing this was NIS ... but I'm with everyone
> else
>> in saying go with LDAP directory services, and further, use a NFS
>> automount for their home directories.
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