ptt2.cc:23
==========

**Connection Banner:**

.. raw:: html

   <pre class="ansi-banner" role="img" aria-label="ANSI art banner for ptt2.cc:23">Ptt2 即日起關閉無加密的 telnet 連線方式。
   
   請使用者轉換到安全的加密連線方式，
   目前 Ptt2 支援 Websocket 與 ssh。
   
   若您先前使用無加密的 telnet 連線方式，
   建議您在轉換到加密連線後，
   儘速更換您的密碼。</pre>

.. raw:: html

   <p class="mud-connect">
   <a href="telnet://ptt2.cc" class="telnet-link">ptt2.cc:23</a>
   <button class="copy-btn" data-host="ptt2.cc" data-port="23" title="Copy host and port" aria-label="Copy ptt2.cc port 23 to clipboard">
   <span class="copy-icon" aria-hidden="true">&#x2398;</span>
   </button>
   </p>

Encoding
--------

- **Effective encoding**: big5
- **Override**: big5 (from bbslist.txt)
- **Scanner detected**: big5

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

:ref:`a8a260cc4662430c... <fp_a8a260cc4662430c>`

*This fingerprint is shared by 169 other servers.*

**Data source**: `a8a260cc4662430c/c672a7dacb3eda4b.json <https://github.com/jquast/modem.xyz/tree/master/data-bbs/server/a8a260cc4662430c/c672a7dacb3eda4b.json>`_

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

.. code-block:: json

   {
     "server-probe": {
       "fingerprint": "a8a260cc4662430c",
       "fingerprint-data": {
         "offered-options": [],
         "probed-protocol": "server",
         "refused-options": [
           "AARDWOLF",
           "ATCP",
           "BINARY",
           "CHARSET",
           "COM_PORT",
           "ECHO",
           "EOR",
           "GMCP",
           "MSDP",
           "MSP",
           "MSSP",
           "MXP",
           "SGA",
           "STATUS",
           "ZMP"
         ],
         "requested-options": [],
         "scan-type": "quick"
       },
       "session_data": {
         "banner_after_return": "",
         "banner_before_return": "Ptt2 \u5373\u65e5\u8d77\u95dc\u9589\u7121\u52a0\u5bc6\u7684 telnet \u9023\u7dda\u65b9\u5f0f\u3002\r\n\r\n\u8acb\u4f7f\u7528\u8005\u8f49\u63db\u5230\u5b89\u5168\u7684\u52a0\u5bc6\u9023\u7dda\u65b9\u5f0f\uff0c\r\n\u76ee\u524d Ptt2 \u652f\u63f4 Websocket \u8207 ssh\u3002\r\n\r\n\u82e5\u60a8\u5148\u524d\u4f7f\u7528\u7121\u52a0\u5bc6\u7684 telnet \u9023\u7dda\u65b9\u5f0f\uff0c\r\n\u5efa\u8b70\u60a8\u5728\u8f49\u63db\u5230\u52a0\u5bc6\u9023\u7dda\u5f8c\uff0c\r\n\u5118\u901f\u66f4\u63db\u60a8\u7684\u5bc6\u78bc\u3002\r\n\r\n",
         "encoding": "big5",
         "option_states": {
           "server_offered": {},
           "server_requested": {}
         },
         "scan_type": "quick",
         "timing": {
           "probe": 0.5042784214019775,
           "total": 5.011928081512451
         }
       }
     },
     "sessions": [
       {
         "connected": "2026-02-09T19:36:27.905103+00:00",
         "host": "ptt2.cc",
         "ip": "140.112.172.12",
         "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=ptt2.cc port=23
   INFO client_base.py:174 Connected to <Peer 140.112.172.12 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
   INFO fingerprinting.py:746 connection for server fingerprint a8a260cc4662430c
   INFO client_base.py:105 Connection closed to <Peer 140.112.172.12 23>

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

.. code-block:: shell

   telnetlib3-fingerprint --loglevel=debug ptt2.cc 23