186.123.101.23:23
=================

**Connection Banner:**

.. raw:: html

   <pre class="ansi-banner" role="img" aria-label="ANSI art banner for 186.123.101.23:23">
   Synchronet BBS for Linux  Version 3.21
   Telnet connection from: 64.227.40.173
   
   <span style="color: #000000; background-color: #000000">_[!_</span>
   
   
         Synchronet BBS for Linux  Version 3.21  Copyright 2026 Rob Swindell
        _                                          _         _      _
     __| |  ___    ___  _  __      ___  _   _   __| |       | |___ | |___  ___
    / _  | / _ \  / __|| |/ /     / __|| | | | / _  |       | `_  \| `_  \/ __|
   | (_) || (_) || (__ |   &lt;      \__ \| |_| || (_) |       | (_) || (_) |\__ \
    \__,_| \___/  \___||_|\_\     |___/ \___/  \__,_|       |_,___/|_,___/|___/
   +---------------------------------------------------------------------------+
   |CLIENT &gt;&gt;&gt;&gt;CONN: Telnet                                                    |
   |       &gt;&gt;&gt;&gt;HOST: &lt;no name&gt;          [64.227.40.173  ]                      |
   |---------------------------------------------------------------------------|
   |SERVER &gt;&gt;&gt;&gt;NOMBRE: Dock Sud BBS             &gt;&gt;&gt;&gt;FECHA: 09/02/26            |
   |       &gt;&gt;&gt;&gt;HOST: bbs.docksud.com.ar         &gt;&gt;&gt;&gt;HORA:  16:35:17            |
   |       &gt;&gt;&gt;&gt;NODO:  1 (de 10)                                 |
   +---------------------------------------------------------------------------+
   &gt;&gt;&gt;&gt;ADMN:  Ragnarok
   |
   
   Si sos un nuevo usuario del bbs, ingresa "New".
   Si ya tenes una cuenta creada ingresa tu User-ID.
   Puedes usar el usuario Guest para entrar como invitado.
   Ingrese su Nombre de Usuario, 'New' o 'Guest'
   Usuario:</pre>

.. raw:: html

   <p class="mud-connect">
   <a href="telnet://186.123.101.23" class="telnet-link">186.123.101.23:23</a>
   <button class="copy-btn" data-host="186.123.101.23" data-port="23" title="Copy host and port" aria-label="Copy 186.123.101.23 port 23 to clipboard">
   <span class="copy-icon" aria-hidden="true">&#x2398;</span>
   </button>
   </p>

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

**Detected**: Synchronet

Encoding
--------

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

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

:ref:`620aa4142caf19ba... <fp_620aa4142caf19ba>`

*This fingerprint is shared by 3 other servers.*

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

**Options requested from client**: ``NAWS``, ``NEW_ENVIRON``, ``TSPEED``, ``TTYPE``

**Data source**: `620aa4142caf19ba/8f7b8814eaae7147.json <https://github.com/jquast/modem.xyz/tree/master/data-bbs/server/620aa4142caf19ba/8f7b8814eaae7147.json>`_

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

.. code-block:: json

   {
     "server-probe": {
       "fingerprint": "620aa4142caf19ba",
       "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",
           "NEW_ENVIRON",
           "TSPEED",
           "TTYPE"
         ],
         "scan-type": "quick"
       },
       "session_data": {
         "banner_after_return": "",
         "banner_before_return": "\r\nSynchronet BBS for Linux  Version 3.21\r\nTelnet connection from: 64.227.40.173\r\n\r\n\u001b[s\u001b[0c\u001b[255B\u001b[255C\u001b[30;40m\b_\u001b[6n\u001b[u\u001b[!_\r\ufffd\ufffd\ufffd\u001b[6n\u001b[0m\u001b[2J\u001b[H\f\r\r      Synchronet BBS for Linux  Version 3.21  Copyright 2026 Rob Swindell\r\n     _                                          _         _      _\r\n  __| |  ___    ___  _  __      ___  _   _   __| |       | |___ | |___  ___\r\n / _  | / _ \\  / __|| |/ /     / __|| | | | / _  |       | `_  \\| `_  \\/ __|\r\n| (_) || (_) || (__ |   <      \\__ \\| |_| || (_) |       | (_) || (_) |\\__ \\\r\n \\__,_| \\___/  \\___||_|\\_\\     |___/ \\___/  \\__,_|       |_,___/|_,___/|___/\r\n+---------------------------------------------------------------------------+\r\n|CLIENT >>>>CONN: Telnet                                                    |\r\n|       >>>>HOST: <no name>          [64.227.40.173  ]                      |\r\n|---------------------------------------------------------------------------|\r\n|SERVER >>>>NOMBRE: Dock Sud BBS             >>>>FECHA: 09/02/26            |\r\n|       >>>>HOST: bbs.docksud.com.ar         >>>>HORA:  16:35:17            |\r\n|       >>>>NODO:  1 (de 10)                                 |\r\n+---------------------------------------------------------------------------+\r\n>>>>ADMN:  Ragnarok\r\n|\r\n\r\nSi sos un nuevo usuario del bbs, ingresa \"New\".\r\nSi ya tenes una cuenta creada ingresa tu User-ID.\r\nPuedes usar el usuario Guest para entrar como invitado.\r\nIngrese su Nombre de Usuario, 'New' o 'Guest'\r\nUsuario: ",
         "encoding": "ascii",
         "option_states": {
           "server_offered": {
             "ECHO": true,
             "SGA": true
           },
           "server_requested": {
             "NAWS": true,
             "NEW_ENVIRON": true,
             "SNDLOC": false,
             "TSPEED": true,
             "TTYPE": true
           }
         },
         "scan_type": "quick",
         "timing": {
           "probe": 0.5079233646392822,
           "total": 6.368012189865112
         }
       }
     },
     "sessions": [
       {
         "connected": "2026-02-09T19:35:21.751945+00:00",
         "host": "186.123.101.23",
         "ip": "186.123.101.23",
         "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=186.123.101.23 port=23
   INFO client_base.py:174 Connected to <Peer 186.123.101.23 23>
   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 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 DO TTYPE
   DEBUG stream_writer.py:1767 handle_do(TTYPE)
   DEBUG stream_writer.py:3167 pending_option[WILL + TTYPE] = True
   DEBUG stream_writer.py:947 send IAC WILL TTYPE
   DEBUG stream_writer.py:3167 pending_option[SB + TTYPE] = True
   DEBUG stream_writer.py:3167 local_option[TTYPE] = True
   DEBUG stream_writer.py:3167 pending_option[WILL + TTYPE] = False
   DEBUG stream_writer.py:706 recv IAC DO TSPEED
   DEBUG stream_writer.py:1767 handle_do(TSPEED)
   DEBUG stream_writer.py:3167 pending_option[WILL + TSPEED] = True
   DEBUG stream_writer.py:947 send IAC WILL TSPEED
   DEBUG stream_writer.py:3167 pending_option[SB + TSPEED] = True
   DEBUG stream_writer.py:3167 local_option[TSPEED] = True
   DEBUG stream_writer.py:3167 pending_option[WILL + TSPEED] = False
   DEBUG stream_writer.py:706 recv IAC DO SNDLOC
   DEBUG stream_writer.py:1767 handle_do(SNDLOC)
   DEBUG stream_writer.py:1845 DO SNDLOC not supported.
   DEBUG stream_writer.py:3167 local_option[SNDLOC] = False
   DEBUG stream_writer.py:947 send IAC WONT SNDLOC
   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 NEW_ENVIRON
   DEBUG stream_writer.py:1767 handle_do(NEW_ENVIRON)
   DEBUG stream_writer.py:3167 pending_option[WILL + NEW_ENVIRON] = True
   DEBUG stream_writer.py:947 send IAC WILL NEW_ENVIRON
   DEBUG stream_writer.py:3167 pending_option[SB + NEW_ENVIRON] = True
   DEBUG stream_writer.py:3167 local_option[NEW_ENVIRON] = True
   DEBUG stream_writer.py:3167 pending_option[WILL + NEW_ENVIRON] = False
   DEBUG stream_writer.py:706 recv IAC DONT SNDLOC
   DEBUG stream_writer.py:1860 handle_dont(SNDLOC)
   DEBUG stream_writer.py:3167 pending_option[WILL + SNDLOC] = False
   DEBUG stream_writer.py:698 begin sub-negotiation SB TTYPE
   DEBUG stream_writer.py:685 sub-negotiation cmd TTYPE SE completion byte
   DEBUG stream_writer.py:3167 pending_option[SB + TTYPE] = False
   DEBUG stream_writer.py:2234 recv TTYPE SEND: b''
   DEBUG stream_writer.py:2247 send IAC SB TTYPE IS b'xterm-256color' IAC SE
   DEBUG stream_writer.py:698 begin sub-negotiation SB TSPEED
   DEBUG stream_writer.py:685 sub-negotiation cmd TSPEED SE completion byte
   DEBUG stream_writer.py:3167 pending_option[SB + TSPEED] = False
   DEBUG stream_writer.py:2166 recv TSPEED SEND: b''
   DEBUG stream_writer.py:2197 send: IAC SB TSPEED IS b'38400',b'38400' IAC SE
   DEBUG client_base.py:463 negotiation failed after 4.00s.
   DEBUG client_base.py:470 failed-reply: 'SB NEW_ENVIRON'
   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:746 connection for server fingerprint 620aa4142caf19ba
   INFO client_base.py:105 Connection closed to <Peer 186.123.101.23 23>

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

.. code-block:: shell

   telnetlib3-fingerprint --loglevel=debug 186.123.101.23 23