• BBS Listing Outbound Telnet

    From Apam@21:1/182 to All on Sun Jan 11 02:51:59 2026

    RE: BBS Listing Outbound Telnet
    BY: All

    Hi

    I've been working on a BBS listing door program, and adding outbound telnet functionality. I've got it working except for BBS ansi detection (ANSI works fine, it's just mystic doesn't detect it).

    My telnet part of the door just copys whatever it receives on the telnet socket to the socket handle of the client and vice versa.. so all the telnet IAC handling should be done in the client's terminal yeah?

    Anyway, I then realized I was opening up a the possibility for anyone to add any lan address in the bbs list and telnet to it... I'm no security expert, but I don't really want anyone tunneling through my BBS onto my LAN.

    I suppose I could add checks for lan IPs in the listings... but seems like more effort than it's worth. Just thought I'd mention it though for anyone using gy-blam on a LAN (I dunno if it checks IPs or not..)

    Andrew


    --- WWIV 5.5.0.development
    * Origin: The Barbed Hook - telnet://barbedhook.ddns.net:2323/ (21:1/182)
  • From Apam@21:1/182 to Rushfan on Sun Jan 11 02:51:59 2026

    RE: Re: BBS Listing Outbound Telnet
    BY: Rushfan(21:2/115)


    Doesn't seem that much code. Here's a simple function to do reasonably
    well.

    Thanks, I incorporated that into the door, and also am blocking loopback addresses.

    Andrew

    --- WWIV 5.5.0.development
    * Origin: The Barbed Hook - telnet://barbedhook.ddns.net:2323/ (21:1/182)