[Bug 236830] Re: cifs does not support kerberos authentication

[Steve Langasek]

Ok; I've tested against the same server that Etienne was testing
against, and found the particular error reproducible; also from my own
client, where I was getting the 'Required key not available' message
instead of the 'Function not implemented' error.  I think the 'not
implemented' is associated with this output in dmesg:

[771815.562213]  CIFS VFS: secType 5 not supported!
[771815.562368]  CIFS VFS: Send error in SessSetup = -38
[771815.701453]  CIFS VFS: cifs_mount failed w/return code = -38

So that's a server configuration problem, not an issue on the client
side; the server in this case is actually not joined to an AD realm at
all, TTBOMK.

If I instead point at a win2k8 server that's part of an AD realm, I get
the following in dmesg if I use sec=krb5:

[ 5818.652927]  CIFS VFS: Server requires packet signing to be enabled in /proc/fs/cifs/SecurityFlags.
[ 5818.782901]  CIFS VFS: cifs_mount failed w/return code = -95

And if I use sec=krb5i, I'm able to mount successfully.

So it looks to me like the packages in PPA work as intended, provided
that the server you're connecting to can accept kerberos connections.

-- 
cifs does not support kerberos authentication
https://bugs.launchpad.net/bugs/236830
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