Subj : Re: VPN??
To   : All
From : pokeswithastick
Date : Wed Jun 24 2020 10:24:06

I suspect that these wireless operators might also use carrier grade NAT so you are sharing a public IP with other users.  

My bbs is hosted locally but exposed to the rest of the world through a tunnel to a digital ocean droplet.  Actually I have a few tunnels so I can run my own mail server locally too.  If you have a spare raspberry pi lying around I wrote up a quick tutorial on how to use OpenVPN to build a tunnel between a local network and a cloud VPS and then use that raspberry pi as the gateway for a third machine (e.g. running a bbs, mail/web server) so that it is accessible.  Works pretty much under any scenario including carrier grade NAT since as far as your bbs/web/mail server is concerned its egress/ingress to the wider internet is the VPS not your ISP.

https://bit.ly/2Vh4V3c

--- ENiGMA 1/2 v0.0.12-beta (linux; arm; 12.16.1)
 * Origin: sbb systems ~ https://bbs.sbbsystems.com (21:2/159)

.