pure-ftpd seem that has a bug
 

I run a pure-ftpd server.

Every client can connect to that server but when he gives LS or DIR he cannot see anything.


Do you know if this is a know problem or something?

Are you trying to connect go through a NAT firewall? FTP has problems with that (I made a post on this a month or so ago -- if you search, you can probably find it). If so, try using the pasv command (or however you enter passive mode) into your FTP client.

No there is not NAT in the firewall of the server.
Could be a passive or active handling of the connection on the server side or client side respectively?

How can turn to the PASSIVE when i use the DOS ftp client or something?

I think you just type "passive" in the DOS FTP client. If there's no NAT between client and server, it's possible that a firewall on the client and server is causing this difficulty, which seems to occur when FTP tries to open a second connection (the protocol uses two connections, one for commands and the other for data) and is unable to do so.

Server's firewall has 20 and 21 port opened. Is that what you mean?

I flushed all the server's firewall rules and then i could ftp the server properly.

So what should i add to my iptables script and let the passive mode of ftp?

Thanks in advance

Yeah, I'm having the same problem, except I'm using a TLS encryption layer over the communication port. For a client, I'm using SmartFTP, which was recommended on the pure-ftpd site. I have problems when it successfully connects and then the server times out when the client issues a LIST command.
Thank you in advance.

-Chubbz

You must turn on the Active Mode, on your ftp client.