To all, Need your help. I'm using Plesk 8.0 for linux. All the time, all services were working but last Mar.2,2009 I encountered this error everytime ftp session was requested. # ftp <server name> Connected to *******. - unknown option: a Name (server name:jerry): Everytime I entered my username it shows. Name (server name:jerry): jerry usage: proftpd [options] Login failed. ftp> bye 421 Service not available, remote server has closed connection Already restarted inetd, as well as psa and the entire server. What else do I need to check. Please advise. Thank you very much.