I want restrict permissions to the content of a directory
- disable links (symbolic or hard)
- limit the number of write permissions pointing to the same file (e.g. to 1, so only one process can write to the file simultaneously, many can read the file)
Is it possible? and how?
Maybe it is possible to create a special file system and mount it to the this
/abc/def/ directory. But then how can I apply special restrictions for a custom file system?