[Samba] windows server 2003 shares (smbmount & signing or cifs & kerberos)

Andrew Bartlett abartlet at samba.org
Wed Nov 30 21:18:21 GMT 2005

On Wed, 2005-11-30 at 08:27 +0100, Roman Sommer wrote:
> hello everyone,
> the old problem persists :X I'm currently running Novell Linux Desktop
> 9 (SP2) featuring a 2.6.5series kernel. Smbclient (3.0.14a-0.4-SUSE)
> seems to support signing negotiation.. at least the following command
> works just fine:
> smbclient -k -L //hostname
> turning signing off manually (-S off) ends up in the common error
> message cli_negprot: SMB signing is mandatory and we have disabled it.
> Now the not so satisfying part... smbmount doesn't seem to support or
> at least it doesn't use client signing. And I couldn't find any way to
> tell it to do so.
> mount -t smbfs //service/share /mountpoint -o krb,debug=4 (not working)
> So I decided to stick with cifs as it is the successor of smb.
> mount -t cifs -o username=user at domain mount -t smbfs //service/share
> /mountpoint (working).
> ...but I really do need kerberos authentication. So either I need
> smbmount to do client signing or kerberos authentication for cifs. Any
> idea?

It's just not possible at this stage.  The CIFSVFS maintainer (sfrench)
and I have discussed how to add kerberos to the in-kernel cifs
connection code (by a userspace callback), but I'm not sure where the
implementation is at.

Andrew Bartlett

Andrew Bartlett                                http://samba.org/~abartlet/
Authentication Developer, Samba Team           http://samba.org
Student Network Administrator, Hawker College  http://hawkerc.net
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