Subj : Port Permissions
To : Mickey
From : Digital Man
Date : Sun Jan 26 2025 09:16 pm
Re: Port Permissions
By: Mickey to All on Sun Jan 26 2025 07:10 pm
> I have just installed 3.20c on a Pi. The build went alone nicely and the
> system is mostly working. My issue:
>
> I execute sbbs with sudo and (according to what I've read) then hand access
> back to sbbs:sbbs after all the ports are loaded. This works great until
> ports 11 and 18 are called during operation and of course, access is denied.
Why would access be denied?
Rather than using sudo, consider using setcap instead:
https://wiki.synchro.net/howto:linux_non-root
> This does'nt seem to affect the bbs too much but I'd like to correct it (if
> I can).
>
> ufw is off and these ports are set-up to forward to the Pi. How do I fix
> this?
Most of the default TCP ports that sbbs tries to bind are privileged (i.e. < 1024), so I'm not clear why ports 11 and 18 would be special. Maybe they're just already bound to other services?
https://wiki.synchro.net/faq:tcpip#bind
--
digital man (rob)
Synchronet/BBS Terminology Definition #93:
XON = Transmit On (ASCII 17, Ctrl-Q)
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