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. I had originally had my max concurrent FTP connections set to one, but changed it to 10. What is the usually max settings the rest of you use? I think that was causing some connections a problem. Am I correct. Thanks!
Have a great evening.
Rixter
telnet://ricksbbs.synchro.net:23
http://ricksbbs.synchro.net:8080
Madison,NC

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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.

I had originally had my max
concurrent FTP connections set to one, but changed it to 10. What is the usually max settings the rest of you use? I think that was causing some connections a problem. Am I correct. Thanks!

It's up to you, but QWK packet transfers should not be using more than one concurrent connection.
--
digital man (rob)

Sling Blade quote #26:
Karl: kaiser blade, ax handle with long blade on it shaped kinda like a banana. Norco, CA WX: 53.2°F, 63.0% humidity, 0 mph E wind, 0.00 inches rain/24hrs
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Re: FTP port 20 and QWK? wait...what?
By: Rixter to all on Mon Dec 16 2024 06:58 pm

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.

It's up to you, but QWK packet transfers should not be using more than one concurrent connection.
--
digital man (rob)

Sling Blade quote #26:
Karl: kaiser blade, ax handle with long blade on it shaped kinda like a banana. Norco, CA WX: 53.2­F, 63.0% humidity, 0 mph E wind, 0.00 inches rain/24hrs
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Thank you. I thought so. Should port 20 be set as tcp or udp? Or both in my router?

telnet://ricksbbs.synchro.net:23
http://ricksbbs.synchro.net:8080
Madison,NC

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­ Synchronet ­ Rick's BBS telnet://ricksbbs.synchro.net:23

Re: FTP port 20 and QWK? wait...what?
By: Rixter to Digital Man on Tue Dec 17 2024 05:46 am

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).

Thank you. I thought so. Should port 20 be set as tcp or udp? Or both in my router?

Just TCP is fine.

But I mispoke: for PASV FTP connections (used for most QWK packet transfers), the server data TCP port(s) are configurable and default to the range 1024-65535.

TCP port 20 is the default *source* port for *active* FTP data connections from the FTP server back to the client.

This web page explains how FTP uses ports and there are many like it: https://www.techtarget.com/searchnetworking/tip/Understanding-the-FTP-PORT-command
--
digital man (rob)

Breaking Bad quote #52:
I need to get involved like I need a second hole in my ass - Hank Shrader Norco, CA WX: 73.6°F, 27.0% humidity, 1 mph SE wind, 0.00 inches rain/24hrs
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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.
--
digital man (rob)

Rush quote #53:
He picks up scraps of conversation, radio and radiation .. Digital Man
Norco, CA WX: 74.1°F, 27.0% humidity, 0 mph SSE wind, 0.00 inches rain/24hrs ---
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Re: FTP port 20 and QWK? wait...what?
By: Digital Man to Rixter on Mon Dec 16 2024 10:01 pm

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

Rush quote #53:
He picks up scraps of conversation, radio and radiation .. Digital Man
Norco, CA WX: 74.1­F, 27.0% humidity, 0 mph SSE wind, 0.00 inches
rain/24hrs ---
­ Synchronet ­ Vertrauen ­ Home of Synchronet ­
[vert/cvs/bbs].synchro.net

Thank you. I have passive enabled and I have port 20 forwarded to the BBS, I never see any activity on it but it is enabled. In my port tests all of the ports need for BBS are showing open but 20 is the only showing 'filtered'. Not sure what that means other and the port probe did not get the open result it expected even though it is set to forward and it is 'open'. Everything seems to be running fine regardless.
Have a good day,
Rixter
telnet://ricksbbs.synchro.net:23
http://ricksbbs.synchro.net:8080
Madison,NC

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­ Synchronet ­ Rick's BBS telnet://ricksbbs.synchro.net:23

Re: FTP port 20 and QWK? wait...what?
By: Rixter to Digital Man on Wed Dec 18 2024 10:03 am

Correction: TCP port 20 is not used normally or by default for passive FTP data connections.

Thank you. I have passive enabled and I have port 20 forwarded to the BBS,

Yeah, you don't need to do that. If/when port 20 is used, it'd be the *source* port from the FTP server back to the FTP client, for data sessions. Since it's not used as an incoming port, you don't need to forward it.
--
digital man (rob)

Sling Blade quote #9:
Doyle Hargraves: Morris here is a modern-day poet, kinda like in olden times. Norco, CA WX: 73.0°F, 21.0% humidity, 2 mph S wind, 0.00 inches rain/24hrs
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Re: FTP port 20 and QWK? wait...what?
By: Digital Man to Rixter on Wed Dec 18 2024 09:37 am

Re: FTP port 20 and QWK? wait...what?
By: Rixter to Digital Man on Wed Dec 18 2024 10:03 am

Correction: TCP port 20 is not used normally or by default for passive data connections.

Thank you. I have passive enabled and I have port 20 forwarded to the BBS

Yeah, you don't need to do that. If/when port 20 is used, it'd be the *sourc port from the FTP server back to the FTP client, for data sessions. Since it not used as an incoming port, you don't need to forward it.

Thank you I will make my correction. I don't want any extra ports open that do not need to be.
Have a good day Digital Man.
telnet://ricksbbs.synchro.net:23
http://ricksbbs.synchro.net:8080
Madison,NC

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■ Synchronet ■ Rick's BBS telnet://ricksbbs.synchro.net:23