FileCOPA FTP Server 2.02 - User Guide and FAQs

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Frequently Asked Questions - FileCOPA FTP Server

1. FileCOPA installed OK and I can connect to it from the same machine it is installed on, but I can't connect it from another machine.
   
   Your firewall is blocking access. FileCOPA needs to be able to open at least TCP ports 20 and 21. These are the standard ports for FTP access. You need to allow these ports to pass through your firewall to be able to talk to FileCOPA.
   
   
2. Customers can't connect to my FileCOPA FTP server using Passive FTP
   
   You need to allow some ports through your firewall for passive FTP access. In passive FTP the FTP server will open a TCP port for the client to connect to to send/receive data. Whereas in normal FTP mode it is the client that opens the data port.
   
   If you open the FileCOPA configuration screen you can select which ports will be used for passive FTP. You need to open enough ports for the maximum number of simultaneous connections you are likely to receive. You then need to allow these ports through your firewall.
   
   In some cases FileCOPA will be running on a machine behind a router. The router will have the "real" internet IP address and the machine FileCOPA is installed on will have a private IP address. As FileCOPA knows nothing of your router it will report the private IP address back to the client. This cannot work. If you call up the FileCOPA configuration panel you can give FileCOPA the name, or IP address of your router. FileCOPA will then report this address back to the client. You will need to make sure your router is configured to port forward and requests on the passive FTP ports to the private IP address of the machine FileCOPA is running on.