UTL UNDERGROUND

Classic access - text first, no JavaScript, no required images.

BBS | IRC | Clients | Help | Modern site

Call the BBS

Host: bbs.unixtechlab.dev

• SSH: TCP port 2222 (recommended when your client supports it).
• Telnet with TLS: TCP port 992 (requires a compatible TLS client).
• Legacy Telnet: TCP port 23 (unencrypted).
• Legacy RLogin: TCP port 513 (unencrypted; client compatibility varies).

ssh -p 2222 YOUR_BBS_USERNAME@bbs.unixtechlab.dev
 telnet bbs.unixtechlab.dev 23

Use your BBS username, not a Linux root account. Type NEW at the BBS login prompt to register. Choose ASCII/no color if your terminal cannot display ANSI. Typical screens use 80 columns and 24 rows.

Messages, games, files and polls are available from the terminal menus. Follow the menu on screen: X for games, T for files, J for message areas and O to log off.

IRC chat

Host: irc.unixtechlab.dev
TLS: TCP 6697 (recommended)
Legacy plaintext: TCP 6667

Choose a nickname and join #underground. Other channels include #retro, #linux, #homelab, #gaming, #projects, #events and #help.

/join #underground
!help
!connect
!clients
!support

BBS, IRC and Member Lounge accounts are separate. Never share a password in a channel. Plaintext connections expose messages and passwords on the network; use a separate low-value password and prefer a trusted local gateway for vintage computers.

Clients and older computers

• DOS and Windows 3.1: use a compatible Telnet terminal and installed TCP/IP networking. Availability depends on your networking stack and hardware.
• Older Linux and BSD: a working Telnet or IRC client can use legacy ports; modern SSH/TLS depends on supported cryptography.
• Classic Mac and Apple II: use an appropriate terminal, TCP/IP adapter or serial-to-network gateway. A network-capable terminal is required.
• Current systems: SyncTERM for BBS ANSI graphics; Irssi, WeeChat or mIRC for IRC; PuTTY for terminal access.

Official client sources: SyncTERM | Irssi | WeeChat | PuTTY | mIRC

Download directory | Detailed vintage connection guide

Compatibility notes

Browser compatibility: Modern browsers force HTTPS for all .dev addresses using a built-in policy. This retro hostname now has a trusted certificate for those browsers. Plain HTTP remains available to clients that do not enforce that policy. A broadly usable HTTP-only address would need a domain without mandatory HTTPS.

This page uses basic HTML and ASCII text, without scripts, web fonts, animations or layout CSS. It works without JavaScript. The main site's browser terminal, browser IRC and live graphs require a modern browser.

This retro information site is available over unencrypted HTTP for older browsers. Do not enter passwords here. The modern website and browser chat use HTTPS; links to those services may require a newer browser. This site has no login forms, scripts or browser chat.

No physical dial-up modem service is available. Vintage hardware combinations have not all been tested. Online counts are on the modern site; this page does not invent live status.

Download plain-text connection guide

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