[OpenAFS] Evaluating OpenAFS: Questions

[Jeffrey Altman]

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Sven Oehme wrote:

> 
>  >
>  > You do not want to use an intermediary server with Samba as a go between.
>  >
> 
> why ?
> if the Samba Server understand's afs, this is something you want, 
> because you don't have to maintain a AFS client on each System  ...
> 
> Sven

First, the Samba server then needs to know the Kerberos key for AFS
in order to be able to generate tokens on behalf of the authenticated
end user.  Since the Samba server is on a machine which is to be 
considered more vulnerable to attack then the KDC, this should not be
allowed.

Second, Samba supports SMB features such as byte range locking and
Unicode which are currently not supported by AFS file servers.
Clients will rely on the fact that the SMB server states that these
features are supported and expect them to work when the reality is
they cannot.

If you are willing to risk the compromise of your data both from
unauthorized access as well as from write collisions, go ahead and
use Samba as a gateway.  Otherwise, stick to using a true AFS client.

Jeffrey Altman



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