lit.klfree.cz

       .         .      /\      .:  *       .          .              .
                 *    .'  `.      .     .     *      .                  .
  :             .    /      \  _ .________________  .                    .
       |            `.+-~~-+.'/.' `.^^^^^^^^\~~~~~\.                      .
 .    -*-   . .       |u--.|  /     \~~~~~~~|~~~~~|
       |              |   u|.'       `." "  |" " "|           Neo          .
    :            .    |.u-./ _..---.._ \" " | " " |       LOST IN TIME
   -*-            *   |    ~-|U U U U|-~____L_____L_                      .
    :         .   .   |.-u.| |..---..|"//// ////// /\       .            .
          .  *        |u   | |       |// /// // ///==\     / \          .
 .          :         |.--u| |..---..|//////~\////====\   /   \       .
      .               | u  | |       |~~~~/\u |~~|++++| .`+~~~+'  .
                      |.-|~U~U~|---..|u u|u | |u ||||||   |  U|
                   /~~~~/-\---.'     |===|  |u|==|++++|   |   |
          a
aa      |===| _ | ||.---..|u u|u | |u ||HH||U~U~U~U~|        aa@@
     aaa@@@@@@aa   |===|||||_||      |===|_.|u|_.|+HH+|_/_/_/_/aa    a@@@@@@
 aa@@@@@@@@@@@@@@a |~~|~~~~\---/~-.._|--.---------.~~~`.__ _.@@@@@@a    ~~~~
   ~~~~~~    ~~~    \_\\ \  \/~ //\  ~,~|  __   | |`.   :||  ~~~~
                     a\`| `   _//  | / _| || |  | `.'  ,''|     aa@@@@@@@a
 aaa   aaaa       a@@@@\| \  //'   |  // \`| |  `.'  .' | |  aa@@@@@@@@@@@@@
@@@@@a@@@@@@a      ~~~~~ \\`//| | \ \//   \`  .-'  .' | '/      ~~~~~~~  ~~
@S.C.E.S.W.@@@@a          \// |.`  ` ' /~  :-'   .'|  '/~aa
~~~~~~ ~~~~~~         a@@@|   \\ |   // .'    .'| |  |@@@@@@a
                    a@@@@@@@\   | `| ''.'     .' | ' /@@@@@@@@@a       _
                                                                     _| |_
             This MUD was originally based on Nightmare IV
                Copyright (c) 1992-1996 George Reese.

            Admin(s) e-mail: turlogh@email.cz, jezl@centrum.cz
         Note: if you want just to look around,

lit.klfree.cz:7680 ⎘

Telnet Fingerprint

e6a428c13bbcd7f5…

This fingerprint is shared by 17 other servers.

Options requested from client: NAWS, TTYPE

Data source: e6a428c13bbcd7f5/82847c33dfd81f29.json

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

{
  "server-probe": {
    "fingerprint": "e6a428c13bbcd7f5",
    "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",
        "TTYPE"
      ]
    },
    "session_data": {
      "banner_after_return": "aa      |===| _ | ||.---..|u u|u | |u ||HH||U~U~U~U~|        aa@@\r\n     aaa@@@@@@aa   |===|||||_||      |===|_.|u|_.|+HH+|_/_/_/_/aa    a@@@@@@\r\n aa@@@@@@@@@@@@@@a |~~|~~~~\\---/~-.._|--.---------.~~~`.__ _.@@@@@@a    ~~~~\r\n   ~~~~~~    ~~~    \\_\\\\ \\  \\/~ //\\  ~,~|  __   | |`.   :||  ~~~~\r\n                     a\\`| `   _//  | / _| || |  | `.'  ,''|     aa@@@@@@@a\r\n aaa   aaaa       a@@@@\\| \\  //'   |  // \\`| |  `.'  .' | |  aa@@@@@@@@@@@@@\r\n@@@@@a@@@@@@a      ~~~~~ \\\\`//| | \\ \\//   \\`  .-'  .' | '/      ~~~~~~~  ~~\r\n@S.C.E.S.W.@@@@a          \\// |.`  ` ' /~  :-'   .'|  '/~aa\r\n~~~~~~ ~~~~~~         a@@@|   \\\\ |   // .'    .'| |  |@@@@@@a\r\n                    a@@@@@@@\\   | `| ''.'     .' | ' /@@@@@@@@@a       _\r\n                                                                     _| |_\r\n             This MUD was originally based on Nightmare IV\r\n                Copyright (c) 1992-1996 George Reese.\r\n\r\n            Admin(s) e-mail: turlogh@email.cz, jezl@centrum.cz\r\n         Note: if you want just to look around, ",
      "banner_before_return": "       .         .      /\\      .:  *       .          .              .\r\n                 *    .'  `.      .     .     *      .                  .\r\n  :             .    /      \\  _ .________________  .                    .\r\n       |            `.+-~~-+.'/.' `.^^^^^^^^\\~~~~~\\.                      .\r\n .    -*-   . .       |u--.|  /     \\~~~~~~~|~~~~~|       \t\t\r\n       |              |   u|.'       `.\" \"  |\" \" \"|           Neo          .\r\n    :            .    |.u-./ _..---.._ \\\" \" | \" \" |       LOST IN TIME\r\n   -*-            *   |    ~-|U U U U|-~____L_____L_                      .\r\n    :         .   .   |.-u.| |..---..|\"//// ////// /\\       .            .\r\n          .  *        |u   | |       |// /// // ///==\\     / \\          .\r\n .          :         |.--u| |..---..|//////~\\////====\\   /   \\       .\r\n      .               | u  | |       |~~~~/\\u |~~|++++| .`+~~~+'  .\r\n                      |.-|~U~U~|---..|u u|u | |u ||||||   |  U|\r\n                   /~~~~/-\\---.'     |===|  |u|==|++++|   |   |\r\n          a",
      "encoding": "ascii",
      "option_states": {
        "server_offered": {},
        "server_requested": {
          "NAWS": true,
          "TTYPE": true
        }
      },
      "timing": {
        "probe": 0.5089371204376221,
        "total": 1.010345697402954
      }
    }
  },
  "sessions": [
    {
      "connected": "2026-02-08T07:38:07.191647+00:00",
      "host": "lit.klfree.cz",
      "ip": "81.201.49.14",
      "port": 7680
    }
  ]
}

Connection Log

Debug-level log of the Telnet negotiation session, showing each IAC (Interpret As Command) exchange between client and server.

DEBUG client.py:770 Fingerprint client: host=lit.klfree.cz port=7680
INFO client_base.py:174 Connected to <Peer 81.201.49.14 7680>
DEBUG stream_writer.py:692 recv IAC DO TTYPE
DEBUG stream_writer.py:1733 handle_do(TTYPE)
DEBUG stream_writer.py:3030 pending_option[WILL + TTYPE] = True
DEBUG stream_writer.py:933 send IAC WILL TTYPE
DEBUG stream_writer.py:3030 pending_option[SB + TTYPE] = True
DEBUG stream_writer.py:3030 local_option[TTYPE] = True
DEBUG stream_writer.py:3030 pending_option[WILL + TTYPE] = False
DEBUG stream_writer.py:692 recv IAC DO NAWS
DEBUG stream_writer.py:1733 handle_do(NAWS)
DEBUG stream_writer.py:3030 pending_option[WILL + NAWS] = True
DEBUG stream_writer.py:933 send IAC WILL NAWS
DEBUG stream_writer.py:2300 send IAC SB NAWS (rows=25, cols=80) IAC SE
DEBUG stream_writer.py:3030 local_option[NAWS] = True
DEBUG stream_writer.py:3030 pending_option[WILL + NAWS] = False
DEBUG stream_writer.py:684 begin sub-negotiation SB TTYPE
DEBUG stream_writer.py:671 sub-negotiation cmd TTYPE SE completion byte
DEBUG stream_writer.py:3030 pending_option[SB + TTYPE] = False
DEBUG stream_writer.py:2197 recv TTYPE SEND: b''
DEBUG stream_writer.py:2208 send IAC SB TTYPE IS b'VT100' IAC SE
DEBUG client_base.py:460 negotiation complete after 2.00s.
DEBUG stream_writer.py:1287 IAC GA: Go-Ahead (unhandled).
DEBUG stream_writer.py:3030 pending_option[DO + BINARY] = True
DEBUG stream_writer.py:933 send IAC DO BINARY
DEBUG stream_writer.py:3030 pending_option[DO + SGA] = True
DEBUG stream_writer.py:933 send IAC DO SGA
DEBUG stream_writer.py:3030 pending_option[DO + ECHO] = True
DEBUG stream_writer.py:933 send IAC DO ECHO
DEBUG stream_writer.py:3030 pending_option[DO + STATUS] = True
DEBUG stream_writer.py:933 send IAC DO STATUS
DEBUG stream_writer.py:3030 pending_option[DO + CHARSET] = True
DEBUG stream_writer.py:933 send IAC DO CHARSET
DEBUG stream_writer.py:3030 pending_option[DO + EOR] = True
DEBUG stream_writer.py:933 send IAC DO EOR
DEBUG stream_writer.py:3030 pending_option[DO + COM_PORT_OPTION] = True
DEBUG stream_writer.py:933 send IAC DO COM_PORT_OPTION
DEBUG stream_writer.py:3030 pending_option[DO + GMCP] = True
DEBUG stream_writer.py:933 send IAC DO GMCP
DEBUG stream_writer.py:3030 pending_option[DO + MSDP] = True
DEBUG stream_writer.py:933 send IAC DO MSDP
DEBUG stream_writer.py:3030 pending_option[DO + MSSP] = True
DEBUG stream_writer.py:933 send IAC DO MSSP
DEBUG stream_writer.py:3030 pending_option[DO + MSP] = True
DEBUG stream_writer.py:933 send IAC DO MSP
DEBUG stream_writer.py:3030 pending_option[DO + MXP] = True
DEBUG stream_writer.py:933 send IAC DO MXP
DEBUG stream_writer.py:3030 pending_option[DO + ZMP] = True
DEBUG stream_writer.py:933 send IAC DO ZMP
DEBUG stream_writer.py:3030 pending_option[DO + AARDWOLF] = True
DEBUG stream_writer.py:933 send IAC DO AARDWOLF
DEBUG stream_writer.py:3030 pending_option[DO + ATCP] = True
DEBUG stream_writer.py:933 send IAC DO ATCP
DEBUG stream_writer.py:692 recv IAC WONT SGA
DEBUG stream_writer.py:1985 handle_wont(SGA)
DEBUG stream_writer.py:3030 remote_option[SGA] = False
DEBUG stream_writer.py:3030 pending_option[DO + SGA] = False
DEBUG stream_writer.py:692 recv IAC WONT STATUS
DEBUG stream_writer.py:1985 handle_wont(STATUS)
DEBUG stream_writer.py:3030 remote_option[STATUS] = False
DEBUG stream_writer.py:3030 pending_option[DO + STATUS] = False
INFO fingerprinting.py:746 connection for server fingerprint 6e6641437dab4b1b
INFO client_base.py:105 Connection closed to <Peer 81.201.49.14 7680>

Generated by telnetlib3-fingerprint

telnetlib3-fingerprint --loglevel=debug lit.klfree.cz 7680