[Bioclusters] pointers on cluster integration with MSactivedirectory environments

Larry Adams ladams at platform.com
Thu Aug 24 15:41:27 EDT 2006


I have installed Centrify our grid customers and it's a very attractive proposal because there is not intermediate LDAP to deal with.  You simply add the Centrify software to your grid hosts and then add them to Active directory.  After which you have single sign on that is compatible with our GRID/Clustering software LSF (Load Sharing Facility).  In addition, the Centrify software still allows Unix administrators the ability to manage who get's to what and when outside without having full AD authority.  It represents a good segregation of duties between identify management and systems management.  It is a beautiful piece of software and worth the investment if you are driving towards a *nix based clustering environment in a predominately Windows world.


Larry Adams
Systems Engineer
Platform Computing
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-----Original Message-----
From: bioclusters-bounces+ladams=platform.com at bioinformatics.org [mailto:bioclusters-bounces+ladams=platform.com at bioinformatics.org]On Behalf Of Daniel.G.Roberts at sanofi-aventis.com
Sent: Thursday, August 24, 2006 2:54 PM
To: bioclusters at bioinformatics.org
Subject: RE: [Bioclusters] pointers on cluster integration with MSactivedirectory environments

Also Vintela VAS should work..
Anyone have first hand experience with using either centrify or vas in their cluster for user authentication?

I gather that you still have to run a lightweight ldap server on the headnode in order to have the compute nodes authenticate the user..

-----Original Message-----
bioclusters-bounces+daniel.g.roberts=aventis.com at bioinformatics.org
[mailto:bioclusters-bounces+daniel.g.roberts=aventis.com at bioinformatics.
org]On Behalf Of Joe Landman
Sent: Wednesday, August 23, 2006 5:15 PM
To: HPC in Bioinformatics
Subject: Re: [Bioclusters] pointers on cluster integration with MS
activedirectory environments


Chris Dagdigian wrote:
> Hi folks,
> Figured I'd ask here before trying the beowulf list ...
> I'm working with an organization that will be deploying a midsized life
> science oriented cluster in the next few months. This group is in the
> business of making new products, selling products and
> discovering/developing new products -- the message from the top down is
> that IT is a tool that they need to be able to use effectively but they
> don't want to be in the position of designing, managing and deploying
> lots of custom/complex or one-off IT solutions.
> This means that their IT systems tend to be well designed, extremely
> well documented and focused on ease-of-maintenance. In many cases the
> solutions are designed with an eye towards handing off the day to day
> operation/management to a 3rd party infrastructure/operations provider
> or contractor.
> The organization already has a robust and well-managed directory
> services infrastructure based on MS Windows and Active Directory. There
> is *strong* interest in extending this directory service into the realm
> of the biocluster so that they don't have to roll out and manage a
> totally separate access scheme for cluster users.
> I've done enough work in the lab with AD, LDAP and Kerberos to know that
> Linux+Kerberos can usually play nicely and authenticate against Active
> Directory servers but I have not personally done this further than
> simple experimentation on test systems. Getting a single Linux box to
> authenticate against the domain is one thing; integrating 80+ linux
> boxes is something different.
> Have people on this list done Active Directory integration with full
> clusters? I'm interested in all pointers, war stories, product/vendor
> recommendations etc.  that people would be willing to share. Of
> particular concern to me is how to bring the directory/authentication
> info into the private cluster network so the compute nodes can make use
> of it -- some methods involve password synchronization and others seem
> to involve bringing an AD server directly onto the cluster network. 
> Only a few of the commercial Linux/Active Directory integration
> offerings seem to promise "minimal or zero" configuration changes on the
> actual domain server (a key point as I doubt we'll be allowed to mess
> with the domain servers much themselves).
> I'll summarize any responses and can tell y'all how the project went
> sometime next year!
> Regards,
> Chris
> _______________________________________________
> Bioclusters maillist  -  Bioclusters at bioinformatics.org
> https://bioinformatics.org/mailman/listinfo/bioclusters


Joseph Landman, Ph.D
Founder and CEO
Scalable Informatics LLC,
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Bioclusters maillist  -  Bioclusters at bioinformatics.org
Bioclusters maillist  -  Bioclusters at bioinformatics.org

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