Thanks Niklas. Just found the docs, we are opening a few passive ports now.
Regards On Mon, Oct 5, 2009 at 3:30 PM, Niklas Gustavsson <[email protected]>wrote: > On Mon, Oct 5, 2009 at 8:19 PM, Vinicius Carvalho > <[email protected]> wrote: > > Hello there! We recently moved our FTP Server based on Apache FTP server > > from one node to other. The TCP port for incoming requests is 2121. We > > opened this on the firewall, but the remote user is unable to list files. > > One can connect to the server, send login information, but listing is not > > working. After stopping the firewall the listing worked fine, I wonder if > > there's another port we need to open. > > Listing files (as well as downloading/uploading) happens on a separate > port. For active connections, this port is chosen by the client, thus > people who want to use FTP over firewalls therefore commonly disables > active connections. For passive connections, you can specify in > FtpServer (look in the data connection configuration) which ports > FtpServer should offer. Make sure you also open these in the firewall. > > Note that in the current versions of FtpServer, we only support one > concurrent connection per passive port. Thus, if you want multiple > users to connect concurrently, you need to open multiple ports. > > /niklas >
