Subj : Re: Telnet Connection Problem
To : Mike Dippel
From : Chris Hizny
Date : Fri Feb 11 2022 09:58 pm
MD> Lately, I am unable to connect to my BBS via Telnet from my home
MD> computer. I can,
I don't know what provider you have, but if you have Comcast, their cable modems have software which detect "threats" and will drop connections to any system considered a "threat."
I triggered this by portscanning one of my own Digital Ocean droplets to make sure the Firewall was behaving properly. Then I lost connection with the droplet, although I could get it via tor, or in the method you describe.
Note that, I was scanning the remote server *from* home -- the packets bouncing back to the port scanner were what tripped this "feature."
I had to actually write to Comcast and tell them to knock it off. This is part of some new home security threat detection thing. I was able to reconnect in a few days. Comcast never wrote back; I don't know if the block expired naturally or they did something on their side.
I mention it only because it was quite recently I found myself wrestling with this. It was irksome; I get why they think it's a good idea but probably like most here I don't want or need their help in this regard.
If you're not using Comcast, well, forget everything I just said :)