FTP Server on Centos 5.8 - Transfer fails randomly
- by Diego
Hi have ProFTPD runningon a brand new CentOS 5.8 server with Plesk, and its behaviour is inconsistent at best. I tried to transfer a directory from my PC, and every time I get a transfer failed on a random file. It's never the same one that fails, it just fails. Sometimes it's a .gif, sometimes it's a .css, sometimes it's a JPG. Of several hundred files, a dozen is always failing for no apparent reason.
The error that I get is the following:
COMMAND:> [27/11/2012 11:43:52] STOR main_border.gif
[27/11/2012 11:43:53] 500 Invalid command: try being more creative
ERROR:> [27/11/2012 11:43:53] Syntax error: command unrecognized.
The above is just an example, the "command unrecognized" occurs with LIST and other commands as well.
Here's the ProFTPD configuration, just in case:
ServerName "ProFTPD"
#ServerType standalone
ServerType inetd
DefaultServer on
<Global>
DefaultRoot ~ psacln
AllowOverwrite on
</Global>
DefaultTransferMode binary
UseFtpUsers on
TimesGMT off
SetEnv TZ :/etc/localtime
Port 21
Umask 022
MaxInstances 30
ScoreboardFile /var/run/proftpd/scoreboard
TransferLog /usr/local/psa/var/log/xferlog
#Change default group for new files and directories in vhosts dir to psacln
<Directory /var/www/vhosts>
GroupOwner psacln
</Directory>
# Enable PAM authentication
AuthPAM on
AuthPAMConfig proftpd
IdentLookups off
UseReverseDNS off
AuthGroupFile /etc/group
Include /etc/proftpd.include
Note: file /etc/proftpd.include is blank.
The above is the default configuration set by Plesk 11. I don't know much of why is that way, my knowledge of Linux System Administration is very basic and the one of ProFTPD is a complete zero.
Thanks in advance for the help.
Update
Issue experienced with CuteFTP and FileZilla.
Update
Replaced ProFTPd with PureFTPd, issue persists. Sometimes I get "command unrecognized", sometimes "failed to establish data connection". I'm starting to think that it could be a network issue, but I have completely zero knowledge of networking.
