A couple of things... * According to https://en.wikipedia.org/wiki/FTPS, port 990 has been "reserved" as the official listener port for the FTPS data connection. * This doesn't mean you must use this port. Our FTPS server uses 8443. Apparently some brainiac thought that FTPS and HTTPS were the same thing... * I imagine you could continue to use port 21 if you want to allow both encrypted and unencrypted FTP. Just guessing here.
________________________________ From: IBM Mainframe Discussion List <[email protected]> on behalf of Roberto Halais <[email protected]> Sent: Friday, September 4, 2020 9:50 AM To: [email protected] <[email protected]> Subject: Multiple FTP Servers Listers: We are converting all our file transfer jobs from FTP to FTPS. Our security people insist we do not use port 21 for our FTPS. I see no way of adding another port to our current ftp server it listens on port 21. Question: Do I have to create another FTPD server listening on port 9921 (for example)? Can I have more than one ftp server per tcp/ip stack one listening on port 21 and the other on port 9921? I haven't encountered this before and Google hasn't helped. Any ideas are welcome. Roberto ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
