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Re: [Samba] no attributes after following "Setting up a Share Using Windows ACLs"




On Sun, 29 Apr 2018 11:05:16 +0200
Lapin Blanc via samba <samba@xxxxxxxxxxxxxxx> wrote:

> Hi, i have setup an ad dc with samba 4.8, and then rigorously
> followed wiki tutorial at :
> https://wiki.samba.org/index.php/Setting_up_a_Share_Using_Windows_ACLs
> However, when following the last part (File System ACLs in the Back
> End), I don't get
> the expected results :
> 
> [root@mydc ~]# getfattr -d /srv/samba/Demo/
> doesn't yield anything

There is very good reason why you didn't get anything ;-)
The wiki page is wrong, it should be:

getfattr -n security.NTACL -d /srv/samba/Demo/

Which should produce something like this:

getfattr: Removing leading '/' from absolute path
names # file: srv/samba/Demo/
security.NTACL=0sBAAEAAAAAgAEAAIAAQC4zK0lHchKFvwXwbPR/h8P8sXMj5dNIT5QQuWsYwO3RAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAcG9zaXhfYWNsAEbGxuGu39MBuiZRk2pYxeL5ZWc4au0ikqRAk53MkjVd2b4quyk2WwcAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAEABJy0AAAA0AAAAAAAAADsAAAAAQUAAAAAAAUVAAAASSVmaZneO8cxOHk/9AEAAAEFAAAAAAAFFQAAAEklZmmZ3jvHMTh5P0oIAAACAMQABwAAAAALFACpABIAAQEAAAAAAAEAAAAAAAAUAAAAEAABAQAAAAAAAQAAAAAACxQA/wEfAAEBAAAAAAADAAAAAAALFACpABIAAQEAAAAAAAMBAAAAAAMkAP8BHwABBQAAAAAABRUAAABJJWZpmd47xzE4eT9KCAAAAAAkAP8BHwABBQAAAAAABRUAAABJJWZpmd47xzE4eT/0AQAAAAMkAL8BEwABBQAAAAAABRUAAABJJWZpmd47xzE4eT8BAgAA

Which is as clear as mud, so to get it anywhere near readable, try this:

samba-tool ntacl get /srv/samba/Demo --as-sddl

Which will get you this:

O:LAG:S-1-5-21-1768301897-3342589593-1064908849-2122D:PAI(A;OICIIO;0x001200a9;;;WD)(A;;0x00100000;;;WD)(A;OICIIO;0x001f01ff;;;CO)(A;OICIIO;0x001200a9;;;CG)(A;OICI;0x001f01ff;;;S-1-5-21-1768301897-3342589593-1064908849-2122)(A;;0x001f01ff;;;LA)(A;OICI;0x001301bf;;;DU)

Rowland

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