Can one directory be owned by two groups?

Question

Can one directory be owned by two groups (RHEL 6.2)?

I have created one directory: mkdir /opt/shared, then I created two groups: groupadd sales groupadd marketing

I added manually to each of these groups 21 users, then I changed the ownership chown root:sales /opt/shared and chown root:marketing /opt/shared.

Then I changed the unmask chmod 2775 /opt/shared

The problem is, only group marketing have permission to rwx.

Related to many Q&A's on the site. Here's one for starters: How to add a read only group permission to a folder that already has a default group, and have it inherited for all newly created files & folders? — slm, May 04 '14 at 23:21

score 2 · Accepted Answer · answered May 04 '14 at 22:15

2

A directory (like everything else) can only have one group (the "ACL_GROUP_OBJ" in ACL terminology). But via ACL (setfacl) you can define permissions for other groups, too. Even (via default ACLs) for newly created objects in the directory.

answered May 04 '14 at 22:15

Hauke Laging

90,279

Can one directory be owned by two groups?

1 Answers1