groundzero2.duckdns.org
=======================

.. raw:: html

   <pre class="ansi-banner" role="img" aria-label="ANSI art banner for groundzero2.duckdns.org">Resolving hostname and negotiating connection options.
   
   Scenario              : GZ2 Default Scenario
   Round started         : Sun Feb  8 16:55:23 2026
   System time           : Sun Feb  8 17:14:24 2026
   Time Left in Round    : 162 minutes
   Most players this boot: 0
   .
   <span style="color: #e5e5e5">           _______ _______ </span>
             |   _   |   _   |  <span style="font-weight: bold; color: #cd0000">Ground Zero Ii </span><span style="font-weight: bold; color: #000000">-</span><span style="font-weight: bold; color: #cd0000"> The Second Coming</span><span style="color: #e5e5e5"></span>
             |.  |___|___|   |  TELNET: <span style="color: #00cdcd">groundzero2.duckdns.org 4000</span><span style="color: #e5e5e5"></span>
             |.  |   |/  ___/   WEB SITE: <span style="color: #00cdcd">None!</span><span style="color: #e5e5e5"></span>
             |:  1   |:  1  \   Administrative Staff:
             |::.. . |::.. . |  https://www.facebook.com/groups/25285999988
             `-------`-------'
   
                  Original DikuMUD by Hans Staerfeldt, Katja Nyboe
                  Tom Madsen, Michael Seifert, and Sebastian Hammer
                  Based on MERC 2.1 code by Hatchet, Furey, and Kahn
                  ROM 2.3 code written by Russ Taylor, copyright 1993-1994
                  Ground ZERO base by Cory Hilke.
   
   Welcome soldier.
   Please state your name, clearly :</pre>

.. raw:: html

   <p class="mud-connect">
   <a href="telnet://groundzero2.duckdns.org:4000" class="telnet-link">groundzero2.duckdns.org:4000</a>
   <button class="copy-btn" data-host="groundzero2.duckdns.org" data-port="4000" title="Copy host and port" aria-label="Copy groundzero2.duckdns.org port 4000 to clipboard">
   <span class="copy-icon" aria-hidden="true">&#x2398;</span>
   </button>
   </p>

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

:ref:`c5f425c36a52e5f9... <fp_c5f425c36a52e5f9>`

*This fingerprint is unique to this server.*

**Options requested from client**: ``LFLOW``, ``NAWS``, ``TTYPE``

**Data source**: `c5f425c36a52e5f9/5c20372b1a26465a.json <https://github.com/jquast/muds.modem.xyz/tree/master/data/server/c5f425c36a52e5f9/5c20372b1a26465a.json>`_

The complete JSON record collected during the scan,
including Telnet negotiation results and any
MSSP metadata.

.. code-block:: json

   {
     "server-probe": {
       "fingerprint": "c5f425c36a52e5f9",
       "fingerprint-data": {
         "offered-options": [],
         "probed-protocol": "server",
         "refused-options": [],
         "requested-options": [
           "LFLOW",
           "NAWS",
           "TTYPE"
         ],
         "scan-type": "quick"
       },
       "session_data": {
         "banner_after_return": "",
         "banner_before_return": "Resolving hostname and negotiating connection options.\r\n\r\nScenario              : GZ2 Default Scenario\r\nRound started         : Sun Feb  8 16:55:23 2026\n\rSystem time           : Sun Feb  8 17:14:24 2026\n\rTime Left in Round    : 162 minutes\r\nMost players this boot: 0\r\n.\r\n\u001b[0;37m           _______ _______ \r\n          |   _   |   _   |  \u001b[1;31mGround Zero Ii \u001b[30m-\u001b[31m The Second Coming\u001b[0;37m\r\n          |.  |___|___|   |  TELNET: \u001b[36mgroundzero2.duckdns.org 4000\u001b[0;37m\r\n          |.  |   |/  ___/   WEB SITE: \u001b[36mNone!\u001b[0;37m\r\n          |:  1   |:  1  \\   Administrative Staff:\r\n          |::.. . |::.. . |  https://www.facebook.com/groups/25285999988\r\n          `-------`-------'\r\n\r\n               Original DikuMUD by Hans Staerfeldt, Katja Nyboe\r\n               Tom Madsen, Michael Seifert, and Sebastian Hammer\r\n               Based on MERC 2.1 code by Hatchet, Furey, and Kahn\r\n               ROM 2.3 code written by Russ Taylor, copyright 1993-1994\r\n               Ground ZERO base by Cory Hilke.\r\n\r\nWelcome soldier.\r\nPlease state your name, clearly : ",
         "encoding": "ascii",
         "option_states": {
           "server_offered": {},
           "server_requested": {
             "LFLOW": true,
             "NAWS": true,
             "TTYPE": true
           }
         },
         "scan_type": "quick",
         "timing": {
           "probe": 0.0,
           "total": 2.6083784103393555
         }
       }
     },
     "sessions": [
       {
         "connected": "2026-02-08T17:14:30.703977+00:00",
         "host": "groundzero2.duckdns.org",
         "ip": "35.212.169.241",
         "port": 4000
       }
     ]
   }

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:770 Fingerprint client: host=groundzero2.duckdns.org port=4000
   INFO client_base.py:174 Connected to <Peer 35.212.169.241 4000>
   DEBUG stream_writer.py:697 recv IAC DO LFLOW
   DEBUG stream_writer.py:1739 handle_do(LFLOW)
   DEBUG stream_writer.py:3036 pending_option[WILL + LFLOW] = True
   DEBUG stream_writer.py:938 send IAC WILL LFLOW
   DEBUG stream_writer.py:3036 pending_option[SB + LFLOW] = True
   DEBUG stream_writer.py:3036 local_option[LFLOW] = True
   DEBUG stream_writer.py:3036 pending_option[WILL + LFLOW] = False
   DEBUG stream_writer.py:697 recv IAC DO TTYPE
   DEBUG stream_writer.py:1739 handle_do(TTYPE)
   DEBUG stream_writer.py:3036 pending_option[WILL + TTYPE] = True
   DEBUG stream_writer.py:938 send IAC WILL TTYPE
   DEBUG stream_writer.py:3036 pending_option[SB + TTYPE] = True
   DEBUG stream_writer.py:3036 local_option[TTYPE] = True
   DEBUG stream_writer.py:3036 pending_option[WILL + TTYPE] = False
   DEBUG stream_writer.py:697 recv IAC DO NAWS
   DEBUG stream_writer.py:1739 handle_do(NAWS)
   DEBUG stream_writer.py:3036 pending_option[WILL + NAWS] = True
   DEBUG stream_writer.py:938 send IAC WILL NAWS
   DEBUG stream_writer.py:2306 send IAC SB NAWS (rows=25, cols=80) IAC SE
   DEBUG stream_writer.py:3036 local_option[NAWS] = True
   DEBUG stream_writer.py:3036 pending_option[WILL + NAWS] = False
   DEBUG stream_writer.py:689 begin sub-negotiation SB TTYPE
   DEBUG stream_writer.py:676 sub-negotiation cmd TTYPE SE completion byte
   DEBUG stream_writer.py:3036 pending_option[SB + TTYPE] = False
   DEBUG stream_writer.py:2203 recv TTYPE SEND: b''
   DEBUG stream_writer.py:2214 send IAC SB TTYPE IS b'xterm-256color' IAC SE
   DEBUG stream_writer.py:689 begin sub-negotiation SB TTYPE
   DEBUG stream_writer.py:676 sub-negotiation cmd TTYPE SE completion byte
   DEBUG stream_writer.py:2031 [SB + TTYPE] unsolicited
   DEBUG stream_writer.py:2203 recv TTYPE SEND: b''
   DEBUG stream_writer.py:2214 send IAC SB TTYPE IS b'xterm-256color' IAC SE
   DEBUG client_base.py:463 negotiation failed after 4.00s.
   DEBUG client_base.py:470 failed-reply: 'SB LFLOW'
   DEBUG client_base.py:88 EOF from server, closing.
   INFO client_base.py:105 Connection closed to <Peer 35.212.169.241 4000>
   INFO fingerprinting.py:737 new server fingerprint c5f425c36a52e5f9

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

.. code-block:: shell

   telnetlib3-fingerprint --loglevel=debug groundzero2.duckdns.org 4000