Re: [Samba] authentication problem with samba4 as a dcerpc server

2013-06-09 Thread eric gou





From: Andrew Bartlett
Sent: Saturday, June 08, 2013 1:20 AM
To: eric gou
Cc: [email protected]
Subject: Re: [Samba] authentication problem with samba4 as a dcerpc server



On Thu, 2013-06-06 at 09:44 -0700, eric gou wrote:
I made a mistake in the previous letter. I use the command “net ads 
 join”, looks that’s not for the samba4,


now I use the “samba-tool” to join a DC domain as a member, and it 
succeed, I can see some info stored in


secrets.ldb.

./samba-tool domain join SMB3.COM MEMBER -Uadministrator --realm=SMB3.COM


unfortunately, when I start the “samba”, it still fails to find the 
domain info, so as to the latter authenticating for msrpc:


task_server_terminate: [dreplsrv: no DSDB replication required in domain 
member configuration]
single_terminate: reason[dreplsrv: no DSDB replication required in domain 
member configuration]

ldb_wrap open of secrets.ldb
task_server_terminate: [Cannot start Winbind (domain member): Failed to 
find record for SMB3 in /usr/local/samba/private/secrets.ldb: No such 
object: (null): Have you joined the SMB3 >>domain?]



>any one can help?



I think it's the same issue in both cases.  Are you sure you joined the
domain by the correct netbios domain name?



I think your workgroup=  setting might not match the netbios domain name
of the domain, which is why it isn't being found.



Thanks for your reply,  the domain name is SMB3.COM, what I set is: 
workgroup = SMB3


After I joined the domain by samba-tool, the secrets.ldb info is like this:
   # record 1
   dn: flatname=SMB3,cn=Primary Domains
   msDS-KeyVersionNumber: 5
   objectClass: top
   objectClass: primaryDomain
   objectClass: kerberosSecret
   objectSid: S-1-5-21-4046433554-1285089214-3428912259
   privateKeytab: secrets.keytab
   realm: smb3.com
   saltPrincipal: host/[email protected]
   samAccountName: SUSE11-9$
   secret: 
W5JP@4b$yM[dPlQ7)R%5F]!vJ>F#FfSwB$,PPC,)GQDekyU?X(MjZLg-Si=Yeg0oRmTa@&

   iekMLqZ1vNMGCp_xBflL9c@Y#&7g%2FqSsc4nV7E!%RF#bQ.umf7)o)aWvesOVg?5yd6nD~2_h7Q]
   $%nXQW:C:&~d$RkB9rWCr5>EMfTWPi24,%gS5z>EfB]9>Fr!wU?C=?
   secureChannelType: 2
   servicePrincipalName: HOST/suse11-9
   distinguishedName: flatname=SMB3,cn=Primary Domains

when I start the "samba", it starts the winbind task, by using this 
macro:"SECRETS_PRIMARY_DOMAIN_FILTER" to look for the info in the 
secrets.ldb


it's defined like this: #define SECRETS_PRIMARY_DOMAIN_FILTER 
"(&(flatname=%s)(objectclass=primaryDomain))"

the first key is :flatname, it's value is: SMB3,
apparently, there is no key named flatname in the secrets.ldb and it fails.

my solution is to redefine the macro like this:
#define SECRETS_PRIMARY_DOMAIN_FILTER "(&(dn=flatname=%s,cn=Primary 
Domains))"
and use the key= "dn", value="flatname=SMB3,cn=Primary Domains" to query the 
secrets.ldb, and that works.


is this a bug?

another thing im confused is, after I use the "samba-tool" to join the 
domain, it seems that I have to use the "net ads join" too,
because the function "cli_credentials_set_machine_account" in 
credentials_secrets.c will query both the secrets.ldb and secrets.tdb

and compare some items between them.
some items in the secrets.ldb are missing, such as "whenChanged".

and the secrets.keytab seems not be created if I join samba4 as a domain 
member.



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Re: [Samba] authentication problem with samba4 as a dcerpc server

2013-06-08 Thread Andrew Bartlett
On Thu, 2013-06-06 at 09:44 -0700, eric gou wrote:
> I made a mistake in the previous letter. I use the command “net ads join”, 
> looks that’s not for the samba4,
> 
> now I use the “samba-tool” to join a DC domain as a member, and it succeed, I 
> can see some info stored in 
> 
> secrets.ldb.
> 
> ./samba-tool domain join SMB3.COM MEMBER -Uadministrator --realm=SMB3.COM
> 
> 
> unfortunately, when I start the “samba”, it still fails to find the domain 
> info, so as to the latter authenticating for msrpc:
> 
> task_server_terminate: [dreplsrv: no DSDB replication required in domain 
> member configuration]
> single_terminate: reason[dreplsrv: no DSDB replication required in domain 
> member configuration]
> ldb_wrap open of secrets.ldb
> task_server_terminate: [Cannot start Winbind (domain member): Failed to find 
> record for SMB3 in /usr/local/samba/private/secrets.ldb: No such object: 
> (null): Have you joined the SMB3 domain?]
> 
> any one can help?

I think it's the same issue in both cases.  Are you sure you joined the
domain by the correct netbios domain name?

I think your workgroup=  setting might not match the netbios domain name
of the domain, which is why it isn't being found.

Andrew Bartlett

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


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Re: [Samba] authentication problem with samba4 as a dcerpc server

2013-06-06 Thread eric gou
I made a mistake in the previous letter. I use the command “net ads join”, 
looks that’s not for the samba4,

now I use the “samba-tool” to join a DC domain as a member, and it succeed, I 
can see some info stored in 

secrets.ldb.

./samba-tool domain join SMB3.COM MEMBER -Uadministrator --realm=SMB3.COM


unfortunately, when I start the “samba”, it still fails to find the domain 
info, so as to the latter authenticating for msrpc:

task_server_terminate: [dreplsrv: no DSDB replication required in domain member 
configuration]
single_terminate: reason[dreplsrv: no DSDB replication required in domain 
member configuration]
ldb_wrap open of secrets.ldb
task_server_terminate: [Cannot start Winbind (domain member): Failed to find 
record for SMB3 in /usr/local/samba/private/secrets.ldb: No such object: 
(null): Have you joined the SMB3 domain?]

any one can help?

thanks
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