🚀 go-pugleaf

  Re: Port Binding Crashes
  By: Xofraq to All on Thu Aug 29 2024 07:49 am

 Xo> I have been having some issues with my new setup and I am trying to get
 Xo> some info on what might be causing the crash. In the past 2 days I have
 Xo> been getting port already in use errors for all of my services like this
 Xo> one:

 Xo> !ERROR 98 binding FTP server socket to port 21: address already in use

Does Synchronet actually crash when this happens?  This means another server is already running on the same port (21), so Synchronet can't use that port. This is just an error, and I don't think Synchronet will crash when this happens; it just can't bind to the port.

One way you can check what process is listening on port 21 is with this command:
sudo lsof -i -P -n |grep LISTEN |grep :21

One thing I've noticed is that after shutting down sbbs, it can take a couple minutes for it to fully shut down, so if I try to start sbbs up again too soon, some of the ports might still be in use.

Nightfox

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  Re: Port Binding Crashes
  By: Xofraq to All on Thu Aug 29 2024 07:49:06

 Xo> !ERROR 98 binding FTP server socket to port 21: address already in use

In all likelihood Synchronet has already crashed and is trying to restart when you see this message.

You can probably deal with this error by reviewing this, with attention to the "Rebind" section:

https://wiki.synchro.net/faq:tcpip#bind

Why it's crashing remains an open question. With a debug build you can get a core file which you can explore on your own, or submit along with an issue on gitlab.synchro.net:

https://wiki.synchro.net/howto:gdb

You may just be running out of memory. Maybe you'll notice a pattern in the logs in the minute(s) prior to this recurring crash.

I personally run my terminal, web, mail, and services servers in separate processes, so that if one crashes or needs to restart it doesn't take down the whole BBS. I'm not really advocating for this but it can help isolate the problem.

echicken
electronic chicken bbs - bbs.electronicchicken.com
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  Re: Port Binding Crashes
  By: Xofraq to All on Thu Aug 29 2024 07:49 am

 > Hello All,
 >
 > I have been having some issues with my new setup and I am trying to get some
 > info on what might be causing the crash. In the past 2 days I have been
 > getting port already in use errors for all of my services like this one:
 >
 > !ERROR 98 binding FTP server socket to port 21: address already in use

That's not a crash. For more information, see https://wiki.synchro.net/faq:tcpip#bind

 > This happens to all services/ports then the system freezes. Seems to happen
 > after running for most of the day and sometime after 7:00pm, I am looking
 > for a time pattern. I have to reboot the system and fire the BBS back up.

Are you stopping and restarting sbbs? Normally, the ports aren't re-bound very oftne, only on server recycle or restart.
--
                                            digital man (rob)

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