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yes. When a file/dir hasACLsthis checks the permissions for the given user and if this one is not allowed for making reading,writing,executing then the action is rejected. Maybe you are confusing by what I answered to you some days ago in this answer: "However this behavior is correct because the Unix permissions and the owner drwxr-xr-x+ 2 guest guest allow to the guest user to cd and create files to /test/only_r"only_rwas owed by the same user so it was able to change/modify/create files under that directory. In this case as you said thetest2is owned by root as user, and test as group. But, I remember reading(but I did not find the thread) something aboutuser permissionsare primordial overgroup permissions.--x rwx --- test test, as you can the test user hasxpermissions but its grouptesthasrwxpermissions. Thus if you try to edit the file or reading it you will get aPermission Deniedeven if you are in the same group. In your case it seems that thetestgroup is ignored and the ACLs are applied. You can swap the owner of yourtest2dir:sudo chown test:root. And since the dir is now owned bytestas a user theACLswill be ignored (if you assign only write perms you will be able to read/write/change to the dir).