Macos – Enable FTP on OS X 10.8 Mountain Lion Server

There is a LAN comprising several mac machines (iMac, Mac Pro, macbook etc.), Airport Express router and Mac Mini Server running OS X Server 10.8 (Mountain Lion Server). I need to share a folder on Mac Mini Server by FTP.

What did I try so far:

• Made special partition for FTP Access, call it "Reports" So shared
  folder would be "/Volumes/Reports"

• Gave access every user and group in system, and also enabled guest
  access. I checked posix acl, which is "rwxrwxrwx", I checked sharing
  settings in "Preferences.app" and "Server.app"

• Checked that users have access to FTP service

• Enabled FTP in Server.app

I tried access to shared folder (by FTP):

• via Cyberduck
• via Finder
• via shell: ftp server.local

And what I got:

$ ftp ftpuser@server.local
Trying 10.0.2.2...
Connected to server.local.
220 10.0.2.2 FTP server (tnftpd 20100324+GSSAPI) ready.
331 User ftpuser accepted, provide password.
Password: 
530 User ftpuser may not use FTP.

and

$ ftp admin@server.local
Trying 10.0.2.2...
Connected to server.local.
220 10.0.2.2 FTP server (tnftpd 20100324+GSSAPI) ready.
331 User admin accepted, provide password.
Password: 
530 User admin denied by SACL.
ftp: Login failed
ftp> 

(admin is administrator account , ftpuser is special user account made to access ftp)

What I'm doing wrong? Getting really tired of this…

UPD contents of /etc/ftpusers

$ cat /etc/ftpusers
# list of users disallowed any ftp access.
# read by ftpd(8).
Administrator
administrator
root
uucp
daemon
unknown
www

SOLUTION

User account must have home folder (/Volume/Reports in my case), users without home directory can't access FTP share; ALSO user account must have valid shell (/bin/bash)