Cannot get access to the FTP with authentication error

[jominj]

while we connecting to ftp get error like this

Code: [Select]

Status: Resolving address of www.alise.com
Status: Connecting to 10.10.10.10:21...
Status: Connection established, waiting for welcome message...
Response:       220 Microsoft FTP Service
Command:        USER user
Response:       331 Password required
Command:        PASS ********
Response:       530 User cannot log in.
Error:  Critical error
Error:  Could not connect to server

When we check the ftp log file we could find error like below:
2013-12-04 16:05:11 91.204.25.4 - FTPSVC6 SERVER_HOSTNAME - 10.10.10.10 21 USER user 331 0 0 23 20 0
2013-12-04 16:05:11 91.204.25.4 - FTPSVC6 SERVER_HOSTNAME - 10.10.10.10 21 PASS *** 530 1326 41 25 15 0
2013-12-04 16:05:11 91.204.25.4 - FTPSVC6 SERVER_HOSTNAME - 10.10.10.10 21 ControlChannelClosed - - 0 0 75 35 8281

The error is because of Plesk Server is connected to Active Directory domain, we need to use full 'username' with 'servername' prefix.
Use 'servername\login' format as FTP username:
C:\Users\parallels>ftp 10.10.10.10
Connected to 10.10.10.10.
220 Microsoft FTP Service
User (10.10.10.10:(none)): server_hostname\user
331 Password required
Password:
230 User logged in.
ftp> exit