Subj : Re: BBS Hosting & Port Opening
To   : Shitty
From : Nelgin
Date : Mon Dec 14 2020 05:15 pm

Shitty wrote:
> Thanks for all the tips on good web hosts for my BBS!
> 
> I went with OVHCloud because I like the way they advertised their prices. (No 
hourly jargon!)
> 
> I set myself up with Ubuntu 18.04 & VestaCP. I got my BBS domain configured 
properly (I'm able to serve web pages) and now I'm almost ready to run the BBS 
on there.
> 
> I got stuck on something though: I ran MIS server, but when I try to connect 
with a telnet client it doesn't connect. There's nothing in the mis log either. 
The mis screen remains unchanged when I try to connect, so something is up. 
Does it seem like I don't have my port open? (23?)
> 
> I tried to open it up like this:
> sudo ufw allow 23/tcp
> (But that didn't work - I still couldn't connect.)
> 
> It seems like the port is open - what else can I check?

BTW, running on port 23 is dangerous for the simple fact that it runs as root.
There are ways around it such as using capabilities, but the easiest would be
to use iptables and redirect port 23 to something like 10023. That allows you
to run your bbs on both 10023 as a non-root user, and port 23 by using a safe
iptables redirection.

This also works for ssh, and other protocols.
--- SBBSecho 3.11-Linux
 * Origin: End Of The Line BBS - endofthelinebbs.com (77:1/119)

.