[Samba] How are user and group SID's generated?
dan.stevenson at prsanders.com
Fri Mar 27 13:57:31 UTC 2020
Hoping someone can shed some light on this. I've been searching for over
a week and cannot find information on how Samba generates SID's from
Unix UID's and GID's.
I keep running into situations where after adding a new user to my
CentOS server all other users are suddenly prevented from accessing
shares that have a group ACL assigned.
I finally figured out that it is because Samba will assign an SID to the
new user that is identical to an existing group SID.
For example I have a group named management with an SID of
S-1-5-21-XXXXXXXXX-XXXXXXXXXX-XXXXXXXXXX-1026 (X's are my server's ID)
Then I add a user and Samba generates the exact same SID for the new
user. Now when I check the folder properties from Windows I can see that
instead of the group name showing in the security tab like it used to it
now shows the name of the new user.
I do not have a Windows domain, just a simple workgroup.
I am hoping there is a config file somewhere that I can use to tell
Samba to use different SID ranges for user and groups so there will
never be duplicates?
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