shadowbbs.com:23
================

**Connection Banner:**

.. raw:: html

   <pre class="ansi-banner" role="img" aria-label="ANSI art banner for shadowbbs.com:23">
   Welcome to:  _____________
               /  _________ /
             /   /________    /                    /
           /________     /  /                    /
                   /   /  /____   ____    _____/ ____
        _________/   /  /     /  /   /   /   /  /   /  /   /   /
       /___________/  /     /  /___/ \ /___/  /___/  /___/___/
             ____________    ____________    _____________
            /  ____     /   /  ____     /   /  _________ /
          /   /___/   /   /   /___/   /   /   /________     
        /  _____    &lt;   /  _____    &lt;   /________     / 
      /   /____/   /  /   /____/   /   _________/   / 
    /____________/  /____________/    /___________/      
   DOC (Dave's Own version of Citadel) Version 1.3 
      Falke Bruinsma (WildThing)   Revision 5.01
    
   New users log in as 'new'
   
   Name:
   Press CTRL-D to quit.
   Name:</pre>

.. raw:: html

   <p class="mud-connect">
   <a href="telnet://shadowbbs.com" class="telnet-link">shadowbbs.com:23</a>
   <button class="copy-btn" data-host="shadowbbs.com" data-port="23" title="Copy host and port" aria-label="Copy shadowbbs.com port 23 to clipboard">
   <span class="copy-icon" aria-hidden="true">&#x2398;</span>
   </button>
   </p>

BBS Software
------------

**Detected**: Citadel

Encoding
--------

- **Effective encoding**: cp437
- **Scanner detected**: ascii

Telnet Fingerprint
------------------

:ref:`5c75d40fa78176be... <fp_5c75d40fa78176be>`

*This fingerprint is shared by 1 other server.*

**Options offered by server**: ``ECHO``, ``SGA``

**Options requested from client**: ``NAWS``

**Data source**: `5c75d40fa78176be/c204472cc2ab20ef.json <https://github.com/jquast/modem.xyz/tree/master/data-bbs/server/5c75d40fa78176be/c204472cc2ab20ef.json>`_

The complete JSON record collected during the scan,
including Telnet negotiation results and banner data.

.. code-block:: json

   {
     "server-probe": {
       "fingerprint": "5c75d40fa78176be",
       "fingerprint-data": {
         "offered-options": [
           "ECHO",
           "SGA"
         ],
         "probed-protocol": "server",
         "refused-options": [
           "AARDWOLF",
           "ATCP",
           "BINARY",
           "CHARSET",
           "COM_PORT",
           "EOR",
           "GMCP",
           "MSDP",
           "MSP",
           "MSSP",
           "MXP",
           "STATUS",
           "ZMP"
         ],
         "requested-options": [
           "NAWS"
         ],
         "scan-type": "quick"
       },
       "session_data": {
         "banner_after_return": "\r\n\r\nPress CTRL-D to quit.\r\nName: ",
         "banner_before_return": "\ufffd\r\nWelcome to:  _____________\r\n            /  _________ /\r\n          /   /________    /                    /\r\n        /________     /  /                    /\r\n                /   /  /____   ____    _____/ ____\r\n     _________/   /  /     /  /   /   /   /  /   /  /   /   /\r\n    /___________/  /     /  /___/ \\ /___/  /___/  /___/___/\r\n          ____________    ____________    _____________\r\n         /  ____     /   /  ____     /   /  _________ /\r\n       /   /___/   /   /   /___/   /   /   /________     \r\n     /  _____    <   /  _____    <   /________     / \r\n   /   /____/   /  /   /____/   /   _________/   / \r\n /____________/  /____________/    /___________/      \r\nDOC (Dave's Own version of Citadel) Version 1.3 \r\n   Falke Bruinsma (WildThing)   Revision 5.01\r\n \r\nNew users log in as 'new'\r\n\r\nName: ",
         "encoding": "ascii",
         "option_states": {
           "server_offered": {
             "ECHO": true,
             "SGA": true
           },
           "server_requested": {
             "0x24": false,
             "NAWS": true
           }
         },
         "scan_type": "quick",
         "timing": {
           "probe": 0.5037887096405029,
           "total": 5.115231513977051
         }
       }
     },
     "sessions": [
       {
         "connected": "2026-02-09T19:29:36.982106+00:00",
         "host": "shadowbbs.com",
         "ip": "135.233.115.198",
         "port": 23
       }
     ]
   }

Connection Log
--------------

Debug-level log of the Telnet negotiation session,
showing each IAC (Interpret As Command) exchange
between client and server.

.. code-block:: text

   DEBUG client.py:863 Fingerprint client: host=shadowbbs.com port=23
   INFO client_base.py:174 Connected to <Peer 135.233.115.198 23>
   DEBUG stream_writer.py:663 IAC b'\xac': not a legal 2-byte cmd, treating as data
   DEBUG stream_writer.py:706 recv IAC WILL SGA
   DEBUG stream_writer.py:722 WILL SGA unsolicited
   DEBUG stream_writer.py:1897 handle_will(SGA)
   DEBUG stream_writer.py:3167 pending_option[DO + SGA] = True
   DEBUG stream_writer.py:947 send IAC DO SGA
   DEBUG stream_writer.py:3167 remote_option[SGA] = True
   DEBUG stream_writer.py:3167 pending_option[DO + SGA] = False
   DEBUG stream_writer.py:706 recv IAC WILL ECHO
   DEBUG stream_writer.py:722 WILL ECHO unsolicited
   DEBUG stream_writer.py:1897 handle_will(ECHO)
   DEBUG stream_writer.py:3167 pending_option[DO + ECHO] = True
   DEBUG stream_writer.py:947 send IAC DO ECHO
   DEBUG stream_writer.py:3167 remote_option[ECHO] = True
   DEBUG stream_writer.py:3167 pending_option[DO + ECHO] = False
   DEBUG stream_writer.py:706 recv IAC DO NAWS
   DEBUG stream_writer.py:1767 handle_do(NAWS)
   DEBUG stream_writer.py:3167 pending_option[WILL + NAWS] = True
   DEBUG stream_writer.py:947 send IAC WILL NAWS
   DEBUG stream_writer.py:2339 send IAC SB NAWS (rows=25, cols=80) IAC SE
   DEBUG stream_writer.py:3167 local_option[NAWS] = True
   DEBUG stream_writer.py:3167 pending_option[WILL + NAWS] = False
   DEBUG stream_writer.py:706 recv IAC DO b'$'
   DEBUG stream_writer.py:1767 handle_do(b'$')
   DEBUG stream_writer.py:1845 DO b'$' not supported.
   DEBUG stream_writer.py:3167 local_option[b'$'] = False
   DEBUG stream_writer.py:947 send IAC WONT b'$'
   DEBUG client_base.py:460 negotiation complete after 2.00s.
   DEBUG stream_writer.py:706 recv IAC DONT b'$'
   DEBUG stream_writer.py:1860 handle_dont(b'$')
   DEBUG stream_writer.py:3167 pending_option[WILL + b'$'] = False
   DEBUG stream_writer.py:3167 pending_option[DO + BINARY] = True
   DEBUG stream_writer.py:947 send IAC DO BINARY
   DEBUG stream_writer.py:3167 pending_option[DO + STATUS] = True
   DEBUG stream_writer.py:947 send IAC DO STATUS
   DEBUG stream_writer.py:3167 pending_option[DO + CHARSET] = True
   DEBUG stream_writer.py:947 send IAC DO CHARSET
   DEBUG stream_writer.py:3167 pending_option[DO + EOR] = True
   DEBUG stream_writer.py:947 send IAC DO EOR
   DEBUG stream_writer.py:3167 pending_option[DO + COM_PORT_OPTION] = True
   DEBUG stream_writer.py:947 send IAC DO COM_PORT_OPTION
   DEBUG stream_writer.py:3167 pending_option[DO + GMCP] = True
   DEBUG stream_writer.py:947 send IAC DO GMCP
   DEBUG stream_writer.py:3167 pending_option[DO + MSDP] = True
   DEBUG stream_writer.py:947 send IAC DO MSDP
   DEBUG stream_writer.py:3167 pending_option[DO + MSSP] = True
   DEBUG stream_writer.py:947 send IAC DO MSSP
   DEBUG stream_writer.py:3167 pending_option[DO + MSP] = True
   DEBUG stream_writer.py:947 send IAC DO MSP
   DEBUG stream_writer.py:3167 pending_option[DO + MXP] = True
   DEBUG stream_writer.py:947 send IAC DO MXP
   DEBUG stream_writer.py:3167 pending_option[DO + ZMP] = True
   DEBUG stream_writer.py:947 send IAC DO ZMP
   DEBUG stream_writer.py:3167 pending_option[DO + AARDWOLF] = True
   DEBUG stream_writer.py:947 send IAC DO AARDWOLF
   DEBUG stream_writer.py:3167 pending_option[DO + ATCP] = True
   DEBUG stream_writer.py:947 send IAC DO ATCP
   INFO fingerprinting.py:737 new server fingerprint 5c75d40fa78176be
   INFO client_base.py:105 Connection closed to <Peer 135.233.115.198 23>

*Generated by* `telnetlib3-fingerprint <https://github.com/jquast/telnetlib3>`_

.. code-block:: shell

   telnetlib3-fingerprint --loglevel=debug shadowbbs.com 23