Subj : FTP port 20 and QWK? wait...what?
To   : Rixter
From : Digital Man
Date : Tue Dec 17 2024 12:08 pm

 Re: FTP port 20 and QWK? wait...what?
 By: Digital Man to Rixter on Mon Dec 16 2024 10:01 pm

>   Re: FTP port 20 and QWK? wait...what?
>   By: Rixter to all on Mon Dec 16 2024 06:58 pm
>
>  > Do I need to have port 20 open for anything related to QWK packet
>  > transfers out from my BBS to someone wanting to receive QWK packets from
>  > my BBS? I do not see anything on the WIKI about this.
>
> If your users are going to use "passive" FTP, then 2 connections need to
> made to your system: the control connection (by default on port 21) and the
> data connection (by default on whatever the control port number is, minus
> one, so 20 by default).
>
> This is standard for operating any FTP server on the Internet and nothing
> specialf or Synchronet.

Correction: TCP port 20 is not used normally or by default for passive FTP data connections.
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                                           digital man (rob)

Rush quote #53:
He picks up scraps of conversation, radio and radiation .. Digital Man
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