Proftpd chrooter un utilisateur

Resolving ~
The DefaultRoot directive is commonly used to restrict or "jail" users into specific directories, usually their individual home directories. This is done via:

  DefaultRoot ~

where the tilde (~) is expanded to the home directory of the logging in user. Now, when proftpd is resolving the tilde, it switches to the privileges of the logging-in user and attempts to resolve the home directory. This ensures that the user will, once restricted to that directory, will have the ability to see files and move around. So if using the tilde does not appear to be working in your configuration, double-check that the permissions on the home directory of the user in question at least allow that user to change into the directory (which requires execute permission on the home directory). If proftpd finds that the permissions are too restrictive, an error message like:

  chroot("~"): No such file or directory

will be logged.