vern.cc:23
==========

**Connection Banner:**

.. raw:: html

   <pre class="ansi-banner" role="img" aria-label="ANSI art banner for vern.cc:23">
   Synchronet BBS for Linux  Version 3.19
   Telnet connection from: 10.7.0.1
   Resolving hostname...</pre>

.. raw:: html

   <p class="mud-connect">
   <a href="telnet://vern.cc" class="telnet-link">vern.cc:23</a>
   <button class="copy-btn" data-host="vern.cc" data-port="23" title="Copy host and port" aria-label="Copy vern.cc 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:`f23c774a5c140c7b... <fp_f23c774a5c140c7b>`

*This fingerprint is shared by 5 other servers.*

**Options offered by server**: ``AARDWOLF``, ``ATCP``, ``BINARY``, ``CHARSET``, ``COM_PORT``, ``ECHO``, ``EOR``, ``GMCP``, ``MSDP``, ``MSP``, ``MSSP``, ``MXP``, ``SGA``, ``STATUS``, ``ZMP``

**Data source**: `f23c774a5c140c7b/d28a031fd01d2c01.json <https://github.com/jquast/modem.xyz/tree/master/data-bbs/server/f23c774a5c140c7b/d28a031fd01d2c01.json>`_

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

.. code-block:: json

   {
     "server-probe": {
       "fingerprint": "f23c774a5c140c7b",
       "fingerprint-data": {
         "offered-options": [
           "AARDWOLF",
           "ATCP",
           "BINARY",
           "CHARSET",
           "COM_PORT",
           "ECHO",
           "EOR",
           "GMCP",
           "MSDP",
           "MSP",
           "MSSP",
           "MXP",
           "SGA",
           "STATUS",
           "ZMP"
         ],
         "probed-protocol": "server",
         "refused-options": [],
         "requested-options": [],
         "scan-type": "quick"
       },
       "session_data": {
         "banner_after_return": "",
         "banner_before_return": "\r\nSynchronet BBS for Linux  Version 3.19\r\nTelnet connection from: 10.7.0.1\r\nResolving hostname...\r\n",
         "encoding": "ascii",
         "option_states": {
           "server_offered": {},
           "server_requested": {}
         },
         "scan_type": "quick",
         "timing": {
           "probe": 0.2045278549194336,
           "total": 5.000729084014893
         }
       }
     },
     "sessions": [
       {
         "connected": "2026-02-09T19:29:29.401524+00:00",
         "host": "vern.cc",
         "ip": "5.161.108.85",
         "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=vern.cc port=23
   INFO client_base.py:174 Connected to <Peer 5.161.108.85 23>
   DEBUG client_base.py:460 negotiation complete after 2.00s.
   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 + SGA] = True
   DEBUG stream_writer.py:947 send IAC DO SGA
   DEBUG stream_writer.py:3167 pending_option[DO + ECHO] = True
   DEBUG stream_writer.py:947 send IAC DO ECHO
   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
   DEBUG stream_writer.py:706 recv IAC WILL BINARY
   DEBUG stream_writer.py:1897 handle_will(BINARY)
   DEBUG stream_writer.py:921 skip DO BINARY; pending_option = True
   DEBUG stream_writer.py:3167 remote_option[BINARY] = True
   DEBUG stream_writer.py:3167 pending_option[DO + BINARY] = False
   DEBUG stream_writer.py:706 recv IAC WILL SGA
   DEBUG stream_writer.py:1897 handle_will(SGA)
   DEBUG stream_writer.py:921 skip DO SGA; pending_option = True
   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:1897 handle_will(ECHO)
   DEBUG stream_writer.py:921 skip DO ECHO; pending_option = True
   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 STATUS
   DEBUG stream_writer.py:1897 handle_will(STATUS)
   DEBUG stream_writer.py:3167 remote_option[STATUS] = True
   DEBUG stream_writer.py:1038 send IAC SB STATUS SEND IAC SE
   DEBUG stream_writer.py:3167 pending_option[SB + STATUS] = True
   DEBUG stream_writer.py:3167 pending_option[DO + STATUS] = False
   DEBUG stream_writer.py:706 recv IAC WILL CHARSET
   DEBUG stream_writer.py:1897 handle_will(CHARSET)
   DEBUG stream_writer.py:921 skip DO CHARSET; pending_option = True
   DEBUG stream_writer.py:3167 remote_option[CHARSET] = True
   DEBUG stream_writer.py:3167 pending_option[DO + CHARSET] = False
   DEBUG stream_writer.py:706 recv IAC WILL EOR
   DEBUG stream_writer.py:1897 handle_will(EOR)
   DEBUG stream_writer.py:921 skip DO EOR; pending_option = True
   DEBUG stream_writer.py:3167 remote_option[EOR] = True
   DEBUG stream_writer.py:3167 pending_option[DO + EOR] = False
   DEBUG stream_writer.py:706 recv IAC WILL COM_PORT_OPTION
   DEBUG stream_writer.py:1897 handle_will(COM_PORT_OPTION)
   DEBUG stream_writer.py:921 skip DO COM_PORT_OPTION; pending_option = True
   DEBUG stream_writer.py:3167 remote_option[COM_PORT_OPTION] = True
   DEBUG stream_writer.py:1061 send IAC SB COM-PORT-OPTION SIGNATURE IAC SE
   DEBUG stream_writer.py:3167 pending_option[DO + COM_PORT_OPTION] = False
   DEBUG stream_writer.py:706 recv IAC WILL GMCP
   DEBUG stream_writer.py:1897 handle_will(GMCP)
   DEBUG stream_writer.py:921 skip DO GMCP; pending_option = True
   DEBUG stream_writer.py:3167 remote_option[GMCP] = True
   DEBUG stream_writer.py:3167 pending_option[DO + GMCP] = False
   DEBUG stream_writer.py:706 recv IAC WILL MSDP
   DEBUG stream_writer.py:1897 handle_will(MSDP)
   DEBUG stream_writer.py:921 skip DO MSDP; pending_option = True
   DEBUG stream_writer.py:3167 remote_option[MSDP] = True
   DEBUG stream_writer.py:3167 pending_option[DO + MSDP] = False
   DEBUG stream_writer.py:706 recv IAC WILL MSSP
   DEBUG stream_writer.py:1897 handle_will(MSSP)
   DEBUG stream_writer.py:921 skip DO MSSP; pending_option = True
   DEBUG stream_writer.py:3167 remote_option[MSSP] = True
   DEBUG stream_writer.py:3167 pending_option[DO + MSSP] = False
   DEBUG stream_writer.py:706 recv IAC WILL MSP
   DEBUG stream_writer.py:1897 handle_will(MSP)
   DEBUG stream_writer.py:921 skip DO MSP; pending_option = True
   DEBUG stream_writer.py:3167 remote_option[MSP] = True
   DEBUG stream_writer.py:3167 pending_option[DO + MSP] = False
   DEBUG stream_writer.py:706 recv IAC WILL MXP
   DEBUG stream_writer.py:1897 handle_will(MXP)
   DEBUG stream_writer.py:921 skip DO MXP; pending_option = True
   DEBUG stream_writer.py:3167 remote_option[MXP] = True
   DEBUG stream_writer.py:3167 pending_option[SB + MXP] = True
   DEBUG stream_writer.py:3167 pending_option[DO + MXP] = False
   DEBUG stream_writer.py:706 recv IAC WILL ZMP
   DEBUG stream_writer.py:1897 handle_will(ZMP)
   DEBUG stream_writer.py:921 skip DO ZMP; pending_option = True
   DEBUG stream_writer.py:3167 remote_option[ZMP] = True
   DEBUG stream_writer.py:3167 pending_option[DO + ZMP] = False
   DEBUG stream_writer.py:706 recv IAC WILL AARDWOLF
   DEBUG stream_writer.py:1897 handle_will(AARDWOLF)
   DEBUG stream_writer.py:921 skip DO AARDWOLF; pending_option = True
   DEBUG stream_writer.py:3167 remote_option[AARDWOLF] = True
   DEBUG stream_writer.py:3167 pending_option[DO + AARDWOLF] = False
   DEBUG stream_writer.py:706 recv IAC WILL ATCP
   DEBUG stream_writer.py:1897 handle_will(ATCP)
   DEBUG stream_writer.py:921 skip DO ATCP; pending_option = True
   DEBUG stream_writer.py:3167 remote_option[ATCP] = True
   DEBUG stream_writer.py:3167 pending_option[DO + ATCP] = False
   INFO fingerprinting.py:746 connection for server fingerprint f23c774a5c140c7b
   INFO client_base.py:105 Connection closed to <Peer 5.161.108.85 23>

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

.. code-block:: shell

   telnetlib3-fingerprint --loglevel=debug vern.cc 23