Nanvaent
========

*Banner not shown (legacy encoding not supported).*

.. raw:: html

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

Server Info
-----------

- **Players online**: 15 [#scan]_
- **Uptime**: 318 days

Protocol Support
----------------

MUD-specific protocols detected via MSSP flags or
Telnet negotiation.

- **MSSP**: :proto-yes:`Yes` (MSSP)
- **GMCP**: :proto-no:`No`
- **MSDP**: :proto-no:`No`
- **MCCP**: :proto-no:`No`
- **MCCP2**: :proto-no:`No`
- **MXP**: :proto-no:`No`
- **MSP**: :proto-no:`No`
- **MCP**: :proto-no:`No`
- **ZMP**: :proto-no:`No`

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

:ref:`5fdf8da1a047ce11... <fp_5fdf8da1a047ce11>`

*This fingerprint is shared by 9 other servers.*

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

**Data source**: `5fdf8da1a047ce11/3d2e2145cbfc9321.json <https://github.com/jquast/muds.modem.xyz/tree/master/data/server/5fdf8da1a047ce11/3d2e2145cbfc9321.json>`_

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

.. code-block:: json

   {
     "server-probe": {
       "fingerprint": "5fdf8da1a047ce11",
       "fingerprint-data": {
         "offered-options": [],
         "probed-protocol": "server",
         "refused-options": [
           "AUTHENTICATION",
           "BINARY",
           "BM",
           "CHARSET",
           "COM_PORT",
           "DET",
           "ECHO",
           "ENCRYPT",
           "EOR",
           "FORWARD_X",
           "KERMIT",
           "NAMS",
           "NAOCRD",
           "NAOFFD",
           "NAOHTD",
           "NAOHTS",
           "NAOL",
           "NAOLFD",
           "NAOP",
           "NAOVTD",
           "NAOVTS",
           "PRAGMA_HEARTBEAT",
           "PRAGMA_LOGON",
           "RCP",
           "RCTE",
           "RSP",
           "SEND_URL",
           "SGA",
           "SSPI_LOGON",
           "STATUS",
           "SUPDUP",
           "SUPDUPOUTPUT",
           "SUPPRESS_LOCAL_ECHO",
           "TLS",
           "TN3270E",
           "TTYLOC",
           "VT3270REGIME",
           "X3PAD",
           "XAUTH"
         ],
         "requested-options": [
           "NAWS",
           "NEW_ENVIRON",
           "TTYPE"
         ]
       },
       "session_data": {
         "banner_after_return": "\nO\ufffd\ufffd\ufffd\u0001iOUHJL\ufffdV(\u0006\ufffd\ufffd\ufffd\u0006\u0017)\ufffd\u0000]\u0007\ufffd\"O\u0011f\u0000\u0000\u0000\u0000\ufffd",
         "banner_before_return": "\ufffd\ufffd\ufffd\u000b\ufffd\ufffdX(\u0003X\ufffdHH\ufffd\ufffd\ufffd\u0003R\ufffd\ufffd\ufffdUd\ufffdI\ufffd\ufffd6J\ufffdV\ufffd\ufffd\ufffd\u001c\ufffd8$\ufffdt\ufffd\ufffd\b~\ufffd{w\ufffd\ufffd\ufffd\ufffdV\ufffd\ufffd\ufffdv\ufffd^\ufffd;\ufffd\u0000o\u0010\ufffd\u0005\ufffdrX\ufffdd\ufffd\ufffdq\ufffd\u001f\ufffd\ufffd\ufffd*\ufffd\u000b,\ufffd\ufffd\ufffd\ufffd\u0002\ufffd-B\ufffd\ufffd\u0010Fs\b\u0000\ufffd\ufffdq\ufffd\u0007\r\ufffdq\ufffd\ufffd\ufffdx\u0011\ufffd$r\ufffdb\ufffdd\ufffd\ufffd\ufffd\u0018P!\ufffd\u0006z\ufffd\u0014q\ufffd\u001a\ufffd\u001a\f\ufffd\ufffd\u000f\ufffd\u0011\u007fv\ufffd\ufffd\u0017\ufffd\u0006\ufffd\ufffd5<\u0003Hp\ufffd\ufffd\ufffd\ufffd\u000b`z\b\ufffd\u000fd\ufffd\u000bC\ufffd6\u001b\ufffd\ufffd\ufffd\ufffd\rc\ufffdb\ufffd\ufffd0%\u0013\ufffd\ufffd\ufffd\ufffd5\u0005\ufffd\u001b\ufffdT\u001aZ\ufffd\ufffd\ufffd\u0007\ufffd\ufffd s\ufffd\ufffd\u0013\ufffd;\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd15\u001a\u0016\"\ufffd&\ufffd\ufffd74'XOX\ufffdl\ufffdp\ufffd\ufffd\b\ufffd\ufffd\ufffd\ufffd\ufffd/\ufffd\u001e\ufffd\ufffd;S\ufffdRr\ufffd&\u0015/\ufffd\u0014\ufffd\ufffd\ufffd\ufffd\ufffd\u007f\ufffd\ufffd\ufffd@\ufffd\ufffdU\u0005\u001fU\ufffd\ufffd\ufffdI\rZy6\ufffd\ufffd\u0007\ufffd(\ufffd\ufffds\ufffd>\ufffd\u0015\ufffd\ufffd\ufffdE`\ufffd%7\ufffdX\ufffdu7\ufffd\ufffd<\ufffd\\C\ufffd\ufffdtu\ufffdZ\u001fW\ufffd\ufffd$\ufffd\ufffd\ufffd\ufffdWU\u0015PdI\ufffdK\u0010\ufffd\ufffd\u001d\ufffd}V\ufffd\ufffd,\u0013\ufffd\ufffd\ufffd\ufffd93m\ufffd\ufffd\ufffd\ufffd$\ufffd\ufffd\ufffd\ufffd\ufffd\u0000;h^\u0018\ufffd\ufffdL.\ufffd\ufffd\ufffd)z|\ufffd\ufffdBFj\ufffd\ufffd\ufffd\ufffd)\ufffd+!\ufffd\ufffdc\u000b\ufffdm0Xi\ufffds\ufffd\ufffd\ufffd\ufffd\u0019IT\ufffd1\u0019\ufffd\u0004_\ufffd\ufffd?\u0000\u0000\u0000\ufffd",
         "encoding": "ascii",
         "mssp": {
           "NAME": "Nanvaent",
           "PLAYERS": "15",
           "UPTIME": "1743039611"
         },
         "option_states": {
           "server_offered": {
             "0x55": false,
             "0x56": false,
             "0x5d": false,
             "MSSP": true
           },
           "server_requested": {
             "0x5b": false,
             "NAWS": true,
             "NEW_ENVIRON": true,
             "TTYPE": true
           }
         },
         "timing": {
           "probe": 0.5076313018798828,
           "total": 1.0754354000091553
         }
       }
     },
     "sessions": [
       {
         "connected": "2026-02-08T06:32:39.046685+00:00",
         "host": "nanvaent.org",
         "ip": "207.162.200.121",
         "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:770 Fingerprint client: host=nanvaent.org port=23
   INFO client_base.py:174 Connected to <Peer 207.162.200.121 23>
   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:697 recv IAC WILL MCCP2_COMPRESS
   DEBUG stream_writer.py:713 WILL MCCP2_COMPRESS unsolicited
   DEBUG stream_writer.py:1869 handle_will(MCCP2_COMPRESS)
   DEBUG stream_writer.py:3036 remote_option[MCCP2_COMPRESS] = False
   DEBUG stream_writer.py:938 send IAC DONT MCCP2_COMPRESS
   WARNING stream_writer.py:1974 Unhandled: WILL MCCP2_COMPRESS.
   DEBUG stream_writer.py:697 recv IAC DO MXP
   DEBUG stream_writer.py:1739 handle_do(MXP)
   DEBUG stream_writer.py:3036 pending_option[WILL + MXP] = True
   DEBUG stream_writer.py:938 send IAC WILL MXP
   DEBUG stream_writer.py:3036 pending_option[SB + MXP] = True
   DEBUG stream_writer.py:3036 local_option[MXP] = True
   DEBUG stream_writer.py:3036 pending_option[WILL + MXP] = False
   DEBUG stream_writer.py:697 recv IAC WILL MSSP
   DEBUG stream_writer.py:713 WILL MSSP unsolicited
   DEBUG stream_writer.py:1869 handle_will(MSSP)
   DEBUG stream_writer.py:3036 pending_option[DO + MSSP] = True
   DEBUG stream_writer.py:938 send IAC DO MSSP
   DEBUG stream_writer.py:3036 remote_option[MSSP] = True
   DEBUG stream_writer.py:3036 pending_option[DO + MSSP] = False
   DEBUG stream_writer.py:697 recv IAC WILL ZMP
   DEBUG stream_writer.py:713 WILL ZMP unsolicited
   DEBUG stream_writer.py:1869 handle_will(ZMP)
   DEBUG stream_writer.py:3036 pending_option[DO + ZMP] = True
   DEBUG stream_writer.py:938 send IAC DO ZMP
   DEBUG stream_writer.py:3036 remote_option[ZMP] = True
   DEBUG stream_writer.py:3036 pending_option[DO + ZMP] = False
   DEBUG stream_writer.py:697 recv IAC DO NEW_ENVIRON
   DEBUG stream_writer.py:1739 handle_do(NEW_ENVIRON)
   DEBUG stream_writer.py:3036 pending_option[WILL + NEW_ENVIRON] = True
   DEBUG stream_writer.py:938 send IAC WILL NEW_ENVIRON
   DEBUG stream_writer.py:3036 pending_option[SB + NEW_ENVIRON] = True
   DEBUG stream_writer.py:3036 local_option[NEW_ENVIRON] = True
   DEBUG stream_writer.py:3036 pending_option[WILL + NEW_ENVIRON] = 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:697 recv IAC WILL MCCP_COMPRESS
   DEBUG stream_writer.py:713 WILL MCCP_COMPRESS unsolicited
   DEBUG stream_writer.py:1869 handle_will(MCCP_COMPRESS)
   DEBUG stream_writer.py:3036 remote_option[MCCP_COMPRESS] = False
   DEBUG stream_writer.py:938 send IAC DONT MCCP_COMPRESS
   WARNING stream_writer.py:1974 Unhandled: WILL MCCP_COMPRESS.
   DEBUG stream_writer.py:689 begin sub-negotiation SB MSSP
   DEBUG stream_writer.py:676 sub-negotiation cmd MSSP SE completion byte
   DEBUG stream_writer.py:2031 [SB + MSSP] unsolicited
   DEBUG stream_writer.py:1642 MSSP: {'NAME': 'Nanvaent', 'PLAYERS': '15', 'UPTIME': '1743039611'}
   DEBUG stream_writer.py:689 begin sub-negotiation SB MCCP_COMPRESS
   WARNING stream_writer.py:667 sub-negotiation SB MCCP_COMPRESS (6 bytes) interrupted by IAC b'K'
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/client_base.py", line 399, in _process_chunk
   WARNING client_base.py:495     recv_inband = writer.feed_byte(_ONE_BYTE[b])
   WARNING client_base.py:495                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/stream_writer.py", line 657, in feed_byte
   WARNING client_base.py:495     raise ValueError(f"IAC {name_command(cmd)}({cmd!r}): not a legal 2-byte cmd")
   WARNING client_base.py:495 ValueError: IAC RCTE(b'\x07'): not a legal 2-byte cmd
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/client_base.py", line 399, in _process_chunk
   WARNING client_base.py:495     recv_inband = writer.feed_byte(_ONE_BYTE[b])
   WARNING client_base.py:495                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/stream_writer.py", line 657, in feed_byte
   WARNING client_base.py:495     raise ValueError(f"IAC {name_command(cmd)}({cmd!r}): not a legal 2-byte cmd")
   WARNING client_base.py:495 ValueError: IAC BINARY(b'\x00'): not a legal 2-byte cmd
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/client_base.py", line 399, in _process_chunk
   WARNING client_base.py:495     recv_inband = writer.feed_byte(_ONE_BYTE[b])
   WARNING client_base.py:495                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/stream_writer.py", line 657, in feed_byte
   WARNING client_base.py:495     raise ValueError(f"IAC {name_command(cmd)}({cmd!r}): not a legal 2-byte cmd")
   WARNING client_base.py:495 ValueError: IAC BINARY(b'\x00'): not a legal 2-byte cmd
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/client_base.py", line 399, in _process_chunk
   WARNING client_base.py:495     recv_inband = writer.feed_byte(_ONE_BYTE[b])
   WARNING client_base.py:495                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/stream_writer.py", line 657, in feed_byte
   WARNING client_base.py:495     raise ValueError(f"IAC {name_command(cmd)}({cmd!r}): not a legal 2-byte cmd")
   WARNING client_base.py:495 ValueError: IAC BINARY(b'\x00'): not a legal 2-byte cmd
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/client_base.py", line 399, in _process_chunk
   WARNING client_base.py:495     recv_inband = writer.feed_byte(_ONE_BYTE[b])
   WARNING client_base.py:495                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/stream_writer.py", line 657, in feed_byte
   WARNING client_base.py:495     raise ValueError(f"IAC {name_command(cmd)}({cmd!r}): not a legal 2-byte cmd")
   WARNING client_base.py:495 ValueError: IAC BINARY(b'\x00'): not a legal 2-byte cmd
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/client_base.py", line 399, in _process_chunk
   WARNING client_base.py:495     recv_inband = writer.feed_byte(_ONE_BYTE[b])
   WARNING client_base.py:495                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/stream_writer.py", line 657, in feed_byte
   WARNING client_base.py:495     raise ValueError(f"IAC {name_command(cmd)}({cmd!r}): not a legal 2-byte cmd")
   WARNING client_base.py:495 ValueError: IAC b'\xb4'(b'\xb4'): not a legal 2-byte cmd
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/client_base.py", line 399, in _process_chunk
   WARNING client_base.py:495     recv_inband = writer.feed_byte(_ONE_BYTE[b])
   WARNING client_base.py:495                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/stream_writer.py", line 657, in feed_byte
   WARNING client_base.py:495     raise ValueError(f"IAC {name_command(cmd)}({cmd!r}): not a legal 2-byte cmd")
   WARNING client_base.py:495 ValueError: IAC b'S'(b'S'): not a legal 2-byte cmd
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/client_base.py", line 399, in _process_chunk
   WARNING client_base.py:495     recv_inband = writer.feed_byte(_ONE_BYTE[b])
   WARNING client_base.py:495                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/stream_writer.py", line 657, in feed_byte
   WARNING client_base.py:495     raise ValueError(f"IAC {name_command(cmd)}({cmd!r}): not a legal 2-byte cmd")
   WARNING client_base.py:495 ValueError: IAC b'='(b'='): not a legal 2-byte cmd
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/client_base.py", line 399, in _process_chunk
   WARNING client_base.py:495     recv_inband = writer.feed_byte(_ONE_BYTE[b])
   WARNING client_base.py:495                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/stream_writer.py", line 657, in feed_byte
   WARNING client_base.py:495     raise ValueError(f"IAC {name_command(cmd)}({cmd!r}): not a legal 2-byte cmd")
   WARNING client_base.py:495 ValueError: IAC b'O'(b'O'): not a legal 2-byte cmd
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/client_base.py", line 399, in _process_chunk
   WARNING client_base.py:495     recv_inband = writer.feed_byte(_ONE_BYTE[b])
   WARNING client_base.py:495                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/stream_writer.py", line 657, in feed_byte
   WARNING client_base.py:495     raise ValueError(f"IAC {name_command(cmd)}({cmd!r}): not a legal 2-byte cmd")
   WARNING client_base.py:495 ValueError: IAC b'\xc3'(b'\xc3'): not a legal 2-byte cmd
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/client_base.py", line 399, in _process_chunk
   WARNING client_base.py:495     recv_inband = writer.feed_byte(_ONE_BYTE[b])
   WARNING client_base.py:495                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/stream_writer.py", line 657, in feed_byte
   WARNING client_base.py:495     raise ValueError(f"IAC {name_command(cmd)}({cmd!r}): not a legal 2-byte cmd")
   WARNING client_base.py:495 ValueError: IAC SEND_URL(b'0'): not a legal 2-byte cmd
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/client_base.py", line 399, in _process_chunk
   WARNING client_base.py:495     recv_inband = writer.feed_byte(_ONE_BYTE[b])
   WARNING client_base.py:495                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/stream_writer.py", line 657, in feed_byte
   WARNING client_base.py:495     raise ValueError(f"IAC {name_command(cmd)}({cmd!r}): not a legal 2-byte cmd")
   WARNING client_base.py:495 ValueError: IAC NAOLFD(b'\x10'): not a legal 2-byte cmd
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/client_base.py", line 399, in _process_chunk
   WARNING client_base.py:495     recv_inband = writer.feed_byte(_ONE_BYTE[b])
   WARNING client_base.py:495                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/stream_writer.py", line 657, in feed_byte
   WARNING client_base.py:495     raise ValueError(f"IAC {name_command(cmd)}({cmd!r}): not a legal 2-byte cmd")
   WARNING client_base.py:495 ValueError: IAC b'\xdd'(b'\xdd'): not a legal 2-byte cmd
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/client_base.py", line 399, in _process_chunk
   WARNING client_base.py:495     recv_inband = writer.feed_byte(_ONE_BYTE[b])
   WARNING client_base.py:495                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/stream_writer.py", line 657, in feed_byte
   WARNING client_base.py:495     raise ValueError(f"IAC {name_command(cmd)}({cmd!r}): not a legal 2-byte cmd")
   WARNING client_base.py:495 ValueError: IAC XDISPLOC(b'#'): not a legal 2-byte cmd
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/client_base.py", line 399, in _process_chunk
   WARNING client_base.py:495     recv_inband = writer.feed_byte(_ONE_BYTE[b])
   WARNING client_base.py:495                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/stream_writer.py", line 657, in feed_byte
   WARNING client_base.py:495     raise ValueError(f"IAC {name_command(cmd)}({cmd!r}): not a legal 2-byte cmd")
   WARNING client_base.py:495 ValueError: IAC b'\xe5'(b'\xe5'): not a legal 2-byte cmd
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/client_base.py", line 399, in _process_chunk
   WARNING client_base.py:495     recv_inband = writer.feed_byte(_ONE_BYTE[b])
   WARNING client_base.py:495                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/stream_writer.py", line 657, in feed_byte
   WARNING client_base.py:495     raise ValueError(f"IAC {name_command(cmd)}({cmd!r}): not a legal 2-byte cmd")
   WARNING client_base.py:495 ValueError: IAC b'?'(b'?'): not a legal 2-byte cmd
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/client_base.py", line 399, in _process_chunk
   WARNING client_base.py:495     recv_inband = writer.feed_byte(_ONE_BYTE[b])
   WARNING client_base.py:495                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/stream_writer.py", line 657, in feed_byte
   WARNING client_base.py:495     raise ValueError(f"IAC {name_command(cmd)}({cmd!r}): not a legal 2-byte cmd")
   WARNING client_base.py:495 ValueError: IAC b'\x9c'(b'\x9c'): not a legal 2-byte cmd
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/client_base.py", line 399, in _process_chunk
   WARNING client_base.py:495     recv_inband = writer.feed_byte(_ONE_BYTE[b])
   WARNING client_base.py:495                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/stream_writer.py", line 657, in feed_byte
   WARNING client_base.py:495     raise ValueError(f"IAC {name_command(cmd)}({cmd!r}): not a legal 2-byte cmd")
   WARNING client_base.py:495 ValueError: IAC b'\xba'(b'\xba'): not a legal 2-byte cmd
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/client_base.py", line 399, in _process_chunk
   WARNING client_base.py:495     recv_inband = writer.feed_byte(_ONE_BYTE[b])
   WARNING client_base.py:495                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/stream_writer.py", line 657, in feed_byte
   WARNING client_base.py:495     raise ValueError(f"IAC {name_command(cmd)}({cmd!r}): not a legal 2-byte cmd")
   WARNING client_base.py:495 ValueError: IAC DET(b'\x14'): not a legal 2-byte cmd
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/client_base.py", line 399, in _process_chunk
   WARNING client_base.py:495     recv_inband = writer.feed_byte(_ONE_BYTE[b])
   WARNING client_base.py:495                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/stream_writer.py", line 657, in feed_byte
   WARNING client_base.py:495     raise ValueError(f"IAC {name_command(cmd)}({cmd!r}): not a legal 2-byte cmd")
   WARNING client_base.py:495 ValueError: IAC b'\x86'(b'\x86'): not a legal 2-byte cmd
   DEBUG stream_writer.py:1354 IAC AYT: Are You There? (unhandled).
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/client_base.py", line 399, in _process_chunk
   WARNING client_base.py:495     recv_inband = writer.feed_byte(_ONE_BYTE[b])
   WARNING client_base.py:495                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/stream_writer.py", line 657, in feed_byte
   WARNING client_base.py:495     raise ValueError(f"IAC {name_command(cmd)}({cmd!r}): not a legal 2-byte cmd")
   WARNING client_base.py:495 ValueError: IAC NAOFFD(b'\r'): not a legal 2-byte cmd
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/client_base.py", line 399, in _process_chunk
   WARNING client_base.py:495     recv_inband = writer.feed_byte(_ONE_BYTE[b])
   WARNING client_base.py:495                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/stream_writer.py", line 657, in feed_byte
   WARNING client_base.py:495     raise ValueError(f"IAC {name_command(cmd)}({cmd!r}): not a legal 2-byte cmd")
   WARNING client_base.py:495 ValueError: IAC b'\xe3'(b'\xe3'): not a legal 2-byte cmd
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/client_base.py", line 399, in _process_chunk
   WARNING client_base.py:495     recv_inband = writer.feed_byte(_ONE_BYTE[b])
   WARNING client_base.py:495                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/stream_writer.py", line 657, in feed_byte
   WARNING client_base.py:495     raise ValueError(f"IAC {name_command(cmd)}({cmd!r}): not a legal 2-byte cmd")
   WARNING client_base.py:495 ValueError: IAC b'Q'(b'Q'): not a legal 2-byte cmd
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/client_base.py", line 399, in _process_chunk
   WARNING client_base.py:495     recv_inband = writer.feed_byte(_ONE_BYTE[b])
   WARNING client_base.py:495                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/stream_writer.py", line 657, in feed_byte
   WARNING client_base.py:495     raise ValueError(f"IAC {name_command(cmd)}({cmd!r}): not a legal 2-byte cmd")
   WARNING client_base.py:495 ValueError: IAC X3PAD(b'\x1e'): not a legal 2-byte cmd
   DEBUG stream_writer.py:1345 IAC BRK: Break (unhandled).
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/client_base.py", line 399, in _process_chunk
   WARNING client_base.py:495     recv_inband = writer.feed_byte(_ONE_BYTE[b])
   WARNING client_base.py:495                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/stream_writer.py", line 657, in feed_byte
   WARNING client_base.py:495     raise ValueError(f"IAC {name_command(cmd)}({cmd!r}): not a legal 2-byte cmd")
   WARNING client_base.py:495 ValueError: IAC SE(b'\xf0'): not a legal 2-byte cmd
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/client_base.py", line 399, in _process_chunk
   WARNING client_base.py:495     recv_inband = writer.feed_byte(_ONE_BYTE[b])
   WARNING client_base.py:495                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/stream_writer.py", line 657, in feed_byte
   WARNING client_base.py:495     raise ValueError(f"IAC {name_command(cmd)}({cmd!r}): not a legal 2-byte cmd")
   WARNING client_base.py:495 ValueError: IAC b'\xd8'(b'\xd8'): not a legal 2-byte cmd
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/client_base.py", line 399, in _process_chunk
   WARNING client_base.py:495     recv_inband = writer.feed_byte(_ONE_BYTE[b])
   WARNING client_base.py:495                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/stream_writer.py", line 657, in feed_byte
   WARNING client_base.py:495     raise ValueError(f"IAC {name_command(cmd)}({cmd!r}): not a legal 2-byte cmd")
   WARNING client_base.py:495 ValueError: IAC b'\x9f'(b'\x9f'): not a legal 2-byte cmd
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/client_base.py", line 399, in _process_chunk
   WARNING client_base.py:495     recv_inband = writer.feed_byte(_ONE_BYTE[b])
   WARNING client_base.py:495                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/stream_writer.py", line 657, in feed_byte
   WARNING client_base.py:495     raise ValueError(f"IAC {name_command(cmd)}({cmd!r}): not a legal 2-byte cmd")
   WARNING client_base.py:495 ValueError: IAC b'\x95'(b'\x95'): not a legal 2-byte cmd
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/client_base.py", line 399, in _process_chunk
   WARNING client_base.py:495     recv_inband = writer.feed_byte(_ONE_BYTE[b])
   WARNING client_base.py:495                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/stream_writer.py", line 657, in feed_byte
   WARNING client_base.py:495     raise ValueError(f"IAC {name_command(cmd)}({cmd!r}): not a legal 2-byte cmd")
   WARNING client_base.py:495 ValueError: IAC b'i'(b'i'): not a legal 2-byte cmd
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/client_base.py", line 399, in _process_chunk
   WARNING client_base.py:495     recv_inband = writer.feed_byte(_ONE_BYTE[b])
   WARNING client_base.py:495                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/stream_writer.py", line 657, in feed_byte
   WARNING client_base.py:495     raise ValueError(f"IAC {name_command(cmd)}({cmd!r}): not a legal 2-byte cmd")
   WARNING client_base.py:495 ValueError: IAC b'\xa1'(b'\xa1'): not a legal 2-byte cmd
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/client_base.py", line 399, in _process_chunk
   WARNING client_base.py:495     recv_inband = writer.feed_byte(_ONE_BYTE[b])
   WARNING client_base.py:495                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/stream_writer.py", line 657, in feed_byte
   WARNING client_base.py:495     raise ValueError(f"IAC {name_command(cmd)}({cmd!r}): not a legal 2-byte cmd")
   WARNING client_base.py:495 ValueError: IAC b'\xad'(b'\xad'): not a legal 2-byte cmd
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/client_base.py", line 399, in _process_chunk
   WARNING client_base.py:495     recv_inband = writer.feed_byte(_ONE_BYTE[b])
   WARNING client_base.py:495                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/stream_writer.py", line 657, in feed_byte
   WARNING client_base.py:495     raise ValueError(f"IAC {name_command(cmd)}({cmd!r}): not a legal 2-byte cmd")
   WARNING client_base.py:495 ValueError: IAC PRAGMA_LOGON(b'\x8a'): not a legal 2-byte cmd
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/client_base.py", line 399, in _process_chunk
   WARNING client_base.py:495     recv_inband = writer.feed_byte(_ONE_BYTE[b])
   WARNING client_base.py:495                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/stream_writer.py", line 657, in feed_byte
   WARNING client_base.py:495     raise ValueError(f"IAC {name_command(cmd)}({cmd!r}): not a legal 2-byte cmd")
   WARNING client_base.py:495 ValueError: IAC b'R'(b'R'): not a legal 2-byte cmd
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/client_base.py", line 399, in _process_chunk
   WARNING client_base.py:495     recv_inband = writer.feed_byte(_ONE_BYTE[b])
   WARNING client_base.py:495                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/stream_writer.py", line 657, in feed_byte
   WARNING client_base.py:495     raise ValueError(f"IAC {name_command(cmd)}({cmd!r}): not a legal 2-byte cmd")
   WARNING client_base.py:495 ValueError: IAC b'w'(b'w'): not a legal 2-byte cmd
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/client_base.py", line 399, in _process_chunk
   WARNING client_base.py:495     recv_inband = writer.feed_byte(_ONE_BYTE[b])
   WARNING client_base.py:495                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/stream_writer.py", line 657, in feed_byte
   WARNING client_base.py:495     raise ValueError(f"IAC {name_command(cmd)}({cmd!r}): not a legal 2-byte cmd")
   WARNING client_base.py:495 ValueError: IAC b'\xd0'(b'\xd0'): not a legal 2-byte cmd
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/client_base.py", line 399, in _process_chunk
   WARNING client_base.py:495     recv_inband = writer.feed_byte(_ONE_BYTE[b])
   WARNING client_base.py:495                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/stream_writer.py", line 657, in feed_byte
   WARNING client_base.py:495     raise ValueError(f"IAC {name_command(cmd)}({cmd!r}): not a legal 2-byte cmd")
   WARNING client_base.py:495 ValueError: IAC SE(b'\xf0'): not a legal 2-byte cmd
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/client_base.py", line 399, in _process_chunk
   WARNING client_base.py:495     recv_inband = writer.feed_byte(_ONE_BYTE[b])
   WARNING client_base.py:495                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/stream_writer.py", line 657, in feed_byte
   WARNING client_base.py:495     raise ValueError(f"IAC {name_command(cmd)}({cmd!r}): not a legal 2-byte cmd")
   WARNING client_base.py:495 ValueError: IAC X3PAD(b'\x1e'): not a legal 2-byte cmd
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/client_base.py", line 399, in _process_chunk
   WARNING client_base.py:495     recv_inband = writer.feed_byte(_ONE_BYTE[b])
   WARNING client_base.py:495                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/stream_writer.py", line 657, in feed_byte
   WARNING client_base.py:495     raise ValueError(f"IAC {name_command(cmd)}({cmd!r}): not a legal 2-byte cmd")
   WARNING client_base.py:495 ValueError: IAC b'\xb6'(b'\xb6'): not a legal 2-byte cmd
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/client_base.py", line 399, in _process_chunk
   WARNING client_base.py:495     recv_inband = writer.feed_byte(_ONE_BYTE[b])
   WARNING client_base.py:495                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   WARNING client_base.py:495   File "/home/jquast/telnetlib3/telnetlib3/stream_writer.py", line 657, in feed_byte
   WARNING client_base.py:495     raise ValueError(f"IAC {name_command(cmd)}({cmd!r}): not a legal 2-byte cmd")
   WARNING client_base.py:495 ValueError: IAC RCP(b'\x02'): not a legal 2-byte cmd
   DEBUG stream_writer.py:1354 IAC AYT: Are You There? (unhandled).
   DEBUG client_base.py:463 negotiation failed after 4.00s.
   DEBUG client_base.py:470 failed-reply: 'SB MXP, SB NEW_ENVIRON'
   DEBUG client_base.py:88 EOF from server, closing.
   INFO client_base.py:105 Connection closed to <Peer 207.162.200.121 23>
   INFO fingerprinting.py:737 new server fingerprint d829a62e22869ca7

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

.. code-block:: shell

   telnetlib3-fingerprint --loglevel=debug nanvaent.org 23

.. [#scan] measured 2026-02-08 at 06:32 UTC