If you mean this not sure that is what Smtalk was referring too.So NoSessionReuseRequired should be set automatically now
Try adding this line at the end:
Code:TLSOptions NoSessionReuseRequired
That will take care of this errror:
Code:2020-04-19 20:32:10,781 mod_tls/2.7[1927]: starting TLS negotiation on data connection 2020-04-19 20:32:10,793 mod_tls/2.7[1927]: client reused SSL session for data connection 2020-04-19 20:32:10,794 mod_tls/2.7[1927]: Client did not reuse SSL session from control channel, rejecting data connection (see the NoSessionReuseRequired TLSOptions parameter) 2020-04-19 20:32:10,794 mod_tls/2.7[1927]: unable to open data connection: TLS negotiation failed
This is because your FTP client is using another SSL session for the data connection (which seems to be pretty common) I always add that line when I update proftpd in my machines to fix it.