Using FTP

I have been trying to FTP to a server using the DNS name and the IP address but I receive an unknown host message. I try to ping the server using both methods but I receive request timed out. Is there something I need to do on my Server in order to be able to FTP to this server. I am able to FTP to other servers with no problem and I never had to do anything on My Server in order to FTP. Please let me know if there is something to configure in order to achieve this. Thank you