Jakub,

I see. Thank you.


Simo,

Is this gssntlmssp package meant to work on CentOS 7.5 / Samba 4.7? If so, is there any configuration needed? I would like my Samba server to be able to handle NTLMSSP authentication for windows' clients, while using SSSD as the authentication layer, if possible.

Thanks in advance.


Em sexta-feira, 12 de outubro de 2018 05:03:29 BRT, Jakub Hrozek <jhrozek@redhat.com> escreveu:




> On 11 Oct 2018, at 02:08, Reinaldo Souza Gomes <reinaldosouzagomes@yahoo.com.br> wrote:
>
> I know that this is an old topic, but I've seen contradictory answers in different places.
>
> Some topics say that SSSD has no support for NTLM due to its inherently unsecure nature, and will never have.

Currently SSSD cannot handle NTLM. We thought about a long time about handling NTLM, but it’s a lot of work for not so much gain…


>
> But others such as this topic(https://bugzilla.redhat.com/show_bug.cgi?id=963341) seem to state that it could be possible through gssntlmssp package.
>

Since Simo commented on the bug some time ago, maybe he still remembers how gssntlmssp was supposed to help there?


> The reason for my question is that I'm trying to use Samba with SSSD, and its authentication fail when the windows client falls back from kerberos to NTLMv2 for any reason:

> [2018/10/10 20:43:32.382948,  2] ../source3/auth/auth.c:332(auth_check_ntlm_password)
>  check_ntlm_password:  Authentication for user [myusername] -> [myusername] FAILED with error NT_STATUS_NO_LOGON_SERVERS, authoritative=1
> [2018/10/10 20:43:32.382989,  2] ../auth/auth_log.c:760(log_authentication_event_human_readable)
>  Auth: [SMB2,(null)] user [MYDOMAIN]\[myusername] at [Wed, 10 Oct 2018 20:43:32.382980 -03] with [NTLMv2] status [NT_STATUS_NO_LOGON_SERVERS] workstation [NTB005] remote host [ipv4:192.168.1.1:1914] mapped to [MYDOMAIN]\[myusername]. local host [ipv4:10.1.1.1:445]
>
>
> Is there anything I can do to make SSSD able to deal with NTLMv2/NTLMSSP?

>
>
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