I have PROFTPD and I have to add and limit one user to only a folder.
This is what I do, but I receive 503 error...
# groupadd nuovogruppo
# useradd -d /path/to/myfolder/ -s /bin/false pippo > /bin/false 2>&1
# passwd pippo
Changing password for pippo.
New password: *****
Re-enter new password: *****
# usermod -G nuovogruppo pippo
I change user ang group for "myfolder"
I add to /etc/shells/ the string /bin/false
Then I go to fireftp and I login with pippo and password and I receive "530 Login incorrect".