I have used NFSv4 ACLs extensively to manage permissions at a very granular level in file systems. However, I haven’t found a modern replacement for NFSv4 ACLs + NFS that I can use to mount in both Linux (and ideally also Windows) computers.<p>S3+S3FS supports only POSIX permissions, EFS does not support NFSv4 ACLs,
Honestly - the <i>best</i> permissions system out there is Active Directory<p>Yeah - the MS haters are gonna downvote this into oblivion<p>Does not change that MS with AD (and NTFS underneath) really mastered file and file system permissions in the late 20th century