samba - Jan 2013 - Samba Authentication With Kerberos

Hi All,

Im thrying to setup a server with Samba4 with Kerberos. When I want to see list
all shares with smbclient with samba authentication, everything works fine. But
when I try to authenticate using Kerberos, I get and error.

The command I execute is:

smbclient -L localhost -k

The error message from Samba is:

using SPNEGO
Selected protocol [8][NT LANMAN 1.0]
GSS server Update(krb5)(1) Update failed: Miscellaneous failure (see text):
Decrypt integrity check failed for checksum type hmac-sha1-96-aes256, key type
aes256-cts-hmac-sha1-96
SPNEGO(gssapi_krb5) NEG_TOKEN_INIT failed: NT_STATUS_LOGON_FAILURE
SPNEGO login failed: NT_STATUS_LOGON_FAILURE


Any help will be appreciated.

Thanks and regards,

On Sun, 2013-01-27 at 11:48 -0500, Fabian von Romberg
wrote:
> Hi All,
> 
> Im thrying to setup a server with Samba4 with Kerberos. When I want to see
list all shares with smbclient with samba authentication, everything works fine.
But when I try to authenticate using Kerberos, I get and error.
To be clear, is this Samba 4.0 as an AD DC, or as a member server in
another AD domain?
> The command I execute is:
> 
> smbclient -L localhost -k
> 
> The error message from Samba is:
> 
> using SPNEGO
> Selected protocol [8][NT LANMAN 1.0]
> GSS server Update(krb5)(1) Update failed: Miscellaneous failure (see text):
Decrypt integrity check failed for checksum type hmac-sha1-96-aes256, key type
aes256-cts-hmac-sha1-96
> SPNEGO(gssapi_krb5) NEG_TOKEN_INIT failed: NT_STATUS_LOGON_FAILURE
> SPNEGO login failed: NT_STATUS_LOGON_FAILURE
smbclient should never do kerberos to "localhost" because we can never
know which "localhost" that is.  If you have somehow registered a
'localhost' as a servicePrincipalName, then this is likely the cause of
the issue.  (This error indicates that the key you got from the KDC is
not the key that the server has in it's secrets database/keytab.)

Andrew Bartlett

-- 
Andrew Bartlett                                http://samba.org/~abartlet/
Authentication Developer, Samba Team           http://samba.org

Disregard, that, sorry.

-----Original Message-----
From: samba-bounces at lists.samba.org [mailto:samba-bounces at lists.samba.org]
On Behalf Of David Salib, Mr
Sent: January-28-13 9:38 AM
To: Andrew Bartlett; Fabian von Romberg
Cc: samba at lists.samba.org
Subject: Re: [Samba] Samba Authentication With Kerberos

Thank you, this is a Samba4 host as an AD DC.

-----Original Message-----
From: samba-bounces at lists.samba.org [mailto:samba-bounces at lists.samba.org]
On Behalf Of Andrew Bartlett
Sent: January-28-13 9:32 AM
To: Fabian von Romberg
Cc: samba at lists.samba.org
Subject: Re: [Samba] Samba Authentication With Kerberos

On Sun, 2013-01-27 at 11:48 -0500, Fabian von Romberg
wrote:
> Hi All,
> 
> Im thrying to setup a server with Samba4 with Kerberos. When I want to see
list all shares with smbclient with samba authentication, everything works fine.
But when I try to authenticate using Kerberos, I get and error.
To be clear, is this Samba 4.0 as an AD DC, or as a member server in another AD
domain?
> The command I execute is:
> 
> smbclient -L localhost -k
> 
> The error message from Samba is:
> 
> using SPNEGO
> Selected protocol [8][NT LANMAN 1.0]
> GSS server Update(krb5)(1) Update failed: Miscellaneous failure (see
> text): Decrypt integrity check failed for checksum type 
> hmac-sha1-96-aes256, key type aes256-cts-hmac-sha1-96
> SPNEGO(gssapi_krb5) NEG_TOKEN_INIT failed: NT_STATUS_LOGON_FAILURE 
> SPNEGO login failed: NT_STATUS_LOGON_FAILURE
smbclient should never do kerberos to "localhost" because we can never
know which "localhost" that is.  If you have somehow registered a
'localhost' as a servicePrincipalName, then this is likely the cause of
the issue.  (This error indicates that the key you got from the KDC is not the
key that the server has in it's secrets database/keytab.)

Andrew Bartlett

-- 
Andrew Bartlett                                http://samba.org/~abartlet/
Authentication Developer, Samba Team           http://samba.org


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