[Samba] Linux Workstation x SMB4 DC

Jefferson B. Limeira jbl at internexxus.com.br
Wed Aug 5 19:57:09 UTC 2015


Em 2015-08-05 16:13, Rowland Penny escreveu:
> On 05/08/15 19:55, Jefferson B. Limeira wrote:
>> 
>> I'm using CentOS 6.5 in all computers, workstations and servers. Samba 
>> 4.2.3, compiled last night.
>> 
>> I wrote a script that connect at some workstations and run 'time id 
>> teste', the result:
>> 
>> # ./exec.sh  |grep ^real
>> real    0m1.944s
>> real    0m0.051s
>> real    0m1.843s
>> real    0m1.798s
>> real    0m18.236s
>> real    0m1.756s
>> real    0m1.769s
>> real    0m2.092s
>> real    0m1.952s
>> real    0m1.954s
>> real    0m17.588s
>> real    0m4.841s
>> real    1m48.618s
>> real    1m38.985s
>> real    2m1.186s
>> real    1m17.514s
>> real    1m43.024s
>> real    1m27.757s
>> real    1m29.072s
>> 
> 
> That is not slow, it is glacial :-)
> 
>> From a certain moment, all workstation have increased response time. 
>> At this moment, you believe in a problem on workstation configuration?
>> 
> 
> There is something definitely wrong, but what ?
> 
>> I set log level = 9 in smb.conf and restart winbind.
>> A great time gap occurred after 'getpwnan teste' between 15:40:27 and 
>> 15:41:02
>> 
>> [2015/08/05 15:40:27.870746,  3] 
>> winbindd/winbindd_getpwnam.c:56(winbindd_getpwnam_send)
>>   getpwnam teste
>> [2015/08/05 15:41:02.906043,  6] 
>> winbindd/winbindd.c:822(new_connection)
>>   accepted socket 22
>> [2015/08/05 15:41:02.906169,  3] 
>> winbindd/winbindd_misc.c:384(winbindd_interface_version)
>>   [ 2321]: request interface version
>> [2015/08/05 15:41:02.906332,  3] 
>> winbindd/winbindd_misc.c:417(winbindd_priv_pipe_dir)
>>   [ 2321]: request location of privileged pipe
>> [2015/08/05 15:41:02.906529,  6] 
>> winbindd/winbindd.c:822(new_connection)
>>   accepted socket 28
>> [2015/08/05 15:41:02.906628,  6] 
>> winbindd/winbindd.c:870(winbind_client_request_read)
>>   closing socket 22, client exited
>> [2015/08/05 15:41:02.906702,  3] 
>> winbindd/winbindd_getpwnam.c:56(winbindd_getpwnam_send)
>>   getpwnam teste
>> [2015/08/05 15:41:19.232330,  5] 
>> winbindd/winbindd_getpwnam.c:137(winbindd_getpwnam_recv)
>>   Could not convert sid S-1-5-21-3802641769-3585385758-3926675344-500: 
>> NT_STATUS_SERVER_DISABLED
>> 
> 
> Hmm, 'S-1-5-21-3802641769-3585385758-3926675344-500' is the SID-RID
> for 'Administrator' and 'NT_STATUS_SERVER_DISABLED' probably means
> what it says.
> 
> OK, how did you compile samba?
> Why did you compile samba 4.2.3, it is available from Sernet.
> 
> How are you starting samba on the various machines ?
> Can you post the smb.conf from the DCs and the servers etc ?
> 
> Can you check that the following daemons are running:
> 
> DC: samba, smbd, winbindd
> workstation or member server: smbd, nmbd, winbindd
>> Sorry for my English.
>> 
> 
> Never apologise for your English, as a native English speaking person,
> I am honoured that you have taken the time to learn my language, I, on
> the other hand, do not speak any other languages.
> 
> Rowland

I will try Sernet packages, its possible use/import my actual ldap 
database?

Servers means DCs, ok?
I actually have two DCs. Here is my smb.conf on a DC:

$ cat /usr/local/samba/etc/smb.conf
# Global parameters
[global]
	workgroup = BP
	realm = BP.NET
	netbios name = SRVSMB4-PDC
	server role = active directory domain controller
	dns forwarder = 192.168.200.1
	idmap_ldb:use rfc2307 = yes
	log level = 3

[netlogon]
	path = /usr/local/samba/var/locks/sysvol/bp.net/scripts
	read only = No

[sysvol]
	path = /usr/local/samba/var/locks/sysvol
	read only = No

But on workstations I only have started winbind.

-- 
[]'s Jefferson B. Limeira
jbl at internexxus.com.br
https://br.linkedin.com/in/jlimeira
(41) 9928-8628



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