School of Computing. Dublin City University.
user group other [ ][ ][ ] [ ][ ][ ] [ ][ ][ ] r - read (can do ls) w - write x - search (can access files given their name)
write-protect for safety
shared writable directory
can create/delete files
shared read-only directory
can do ls
If web dir is like this, users may be able to get a raw directory listing of the web files.
shared read-only dir
can't do ls
can access file if know its name
can't explore without filenames
Example: web dir
|[-][-][-]||normal - hidden|
drwx---r-x readabledir drwx-----x executabledir
Web directories (HTTP requests come in as "other"): drwx-----x CGI directories: drwx-----x