Unable to connect to ProFTP on my ubuntu 10.04 server

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http://askubuntu.com – I have recently re-installed proftp on my Ubuntu server after taking off the Parallels Plesk version however now I do not seem to be able to connect to it. When I try to login through FileZilla I get the message: Status: Connecting to Status: Connection established, waiting for welcome message... Error: Connection closed by server Error: Could not connect to server I am logging in using the system login that I used previously. Any ideas ? (HowTos)