Justice, William (WJJ.) wrote:

Is there any documentation on using Active Directory as the KDC in an OpenAFS installation?  Google gave some news group postings from a couple of years ago, figure there is some more up to date info?

 

Thanks!

 

-- Bill 
Things really have not changed all that much. 
The primary issue with using Windows 20003 Active Directory as the KDC
is that Windows 2003 will not issue tickets using the DES-CBC-CBC enctype.
It will issue tickets using the DES-CBC-MD5 enctype.  This is fine if your are
using a krb524 service to translate your Kerberos 5 tickets to Kerberos 4 tickets
(not supported by Active Directory but you can host the MIT Kerberos version
on the machine use keytabs); or if you are using gssklog (again you would need
to add this but more importantly support for this is not integrated with the
Windows AFS client.)

The long term direction is to internally support Kerberos 5 tickets as AFS tokens
everywhere they are needed including the large tickets produced by Active Directory.
This support is built into both the Windows versions and the Unix/Linux version
as of 1.3.64.   Athough the Windows version is the recommended product to use
because it is the best we have; the Unix/Linux 1.3 branch is still considered a development
branch and you would need to think long and hard before using it.

The way that I have setup my cells for use with Active Directory is that I have an
MIT KDC which stores the service principal for the AFS cell.  Then there is a cross-realm
trust between Active Directory and the MIT realm.   Therefore, I can force the
service tickets to be DES-CBC-CRC and be of small enough size to be used directly
with the 1.2.11 AFS servers while still using pure Kerberos 5.

Jeffrey Altman




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