Q: Rechte gehen verloren

Google translate says:

I have a problem and do not know quite how to solve it.

We use a mac mini as a file server for 3 sites. Each location is equipped with its users created in a separate group (Site A has group A with 3 users, site B in Group B with 4 users, etc.)

Each group has various access rights to the server. On the central order management (Numbers file) but all have full access. The permissions are set on the server OSX. Now to my problem. When a user from Group A opens the file and then saves after amendment can access it after only the users of the group A. The rights of the group B and C are simply deleted.

 

Why might that be or am I doing something wrong?

 

Thanks for any advice.

Here is an article that disuccses File Permissions. It is available in many languages:

Troubleshooting permissions issues in Mac OS X

The article discusses the three sets of permissions: Owner, Group, and Everyone.

To avoid having this file be "owned" by one User or Group to the exclusion of all others, you can make a new Group, and make all who need to edit this file members of this Group, and set the file Permissions for Read/Write access for the Group. You may find it more organized to create a Group Shared Folder with these permissions, and keep the file(s) in the Group Shared Folder.

An individual User can be a member of multiple Groups that may or may not overlap. You do not have to change your current groups to Add a new Group for the purpose of modifying these file(s).

This will be more trouble-free in a Shared Folder that is owned by this Group.

that would mean that I should not create groups, but only users?

No, that is not what I intended to say.

You should create a new Group. You should give it a Group Folder on your Server in /Groups (or whatever you have re-named it). You should move the File(s) to be Shared into that Group Folder. Then make sure the files have the appropriate Group Permissions (Read & Write by members of that Group).

For each User that needs access to the Shared Files, you should ADD that Group to that user. The additional Group does not need to replace their existing Group(s), but can be added as an additional Group.

----

When a User modifies the file, it will could have that User as the Owner, but would continue to have Read & Write access for the Group. So any User with that Group in their list of Groups could Read & Write the file(s).

----

In a school, the teachers have a teachers Group. The teachers Group has its own Group Folder, /Groups/Teachers. Teachers can store files there, and any user who is a member of the Teachers Group can Read and Write those files.

The Students also have a Group Folder that they can use to share files with each other, /Groups/Students. Students can use that Folder, and teachers are also a member of the Students Group, so they can Read & Write files there to maintain order.

Mavericks Server Admin: Set up a group file sharing folder

Mavericks Server Admin: Add or remove group members