Subj : Re: Connection Refused
To   : DaiTengu
From : Nightfox
Date : Fri Mar 03 2023 21:46:51

  Re: Re: Connection Refused
  By: DaiTengu to Nightfox on Fri Mar 03 2023 10:57 am

 Da> ISPs have been blocking ports for years.
 Da> SMTP is disallowed because an ISP doesn't want to risk having
 Da> their IP address space associated with spam. 

I'm aware.

 Da> The public line is that it's "for
 Da> security". Lots of old wifi routers left port 23 open with a default
 Da> login/pass.

What would you be telnetting to (what was port 23 open to)?  The router itself? I could see a router providing access to a command-line for administration, but it would probably be best on a non-standard port, and probably not open to the public.
I've seen some 3rd-party router firmware have an option to allow remote configuration via its web interface though..  I had a router with Tomato firmware that had an option for that.  You could disable it though so it would only be available via your internal network.
  
 Da> I get quite a few bots/worms trying to log into my BBS every day on port
 Da> 23, so I guess I can see why they would want to do this. 

I know some ISPs block certain ports, but at least since I started running Synchronet in 2007, I haven't had an ISP that blocked port 23 or the other standard ports (except maybe SMTP).

Nightfox

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