M*U*S*H

mush.pennmush.org:4201 🔒

Server Info

Protocol Support

MUD-specific protocols detected via MSSP flags or Telnet negotiation. See the glossary for definitions.

  • MSSP: Yes (MSSP)

  • GMCP: Negotiated

  • MSDP: No

  • MCCP: No

  • MCCP2: No

  • MXP: No

  • MSP: No

  • MCP: No

  • ZMP: No

Telnet Fingerprint

37802ba8a5328200…

This fingerprint is shared by 15 other servers.

Options offered by server: CHARSET, SGA

Options requested from client: LINEMODE, NAWS, SGA, TTYPE

Data source: 37802ba8a5328200/ab74279ceb10e216.json

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

{
  "server-probe": {
    "fingerprint": "37802ba8a5328200",
    "fingerprint-data": {
      "offered-options": [
        "CHARSET",
        "SGA"
      ],
      "probed-protocol": "server",
      "refused-options": [
        "AUTHENTICATION",
        "BINARY",
        "BM",
        "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",
        "SSPI_LOGON",
        "STATUS",
        "SUPDUP",
        "SUPDUPOUTPUT",
        "SUPPRESS_LOCAL_ECHO",
        "TLS",
        "TN3270E",
        "TTYLOC",
        "VT3270REGIME",
        "X3PAD",
        "XAUTH"
      ],
      "requested-options": [
        "LINEMODE",
        "NAWS",
        "SGA",
        "TTYPE"
      ]
    },
    "session_data": {
      "banner_after_return": "<name> <password> to create a character.\r\nUse connect <name> <password> to connect to your existing character.\r\nUse connect Guest to connect to a guest character.\r\nUse QUIT to logout.\r\nUse the WHO command to find out who is online currently.\r\n-----------------------------------------------------------------------------\r\n\r\n",
      "banner_before_return": "This world is Pueblo 1.10 Enhanced.\r\nWelcome to... M*U*S*H - mush.pennmush.org 4201 and 4202 (ssl)\r\n\r\n                  ___           ___           ___           ___     \r\n                 /\\__\\         /\\__\\         /\\  \\         /\\__\\    \r\n                /::|  |       /:/  /        /::\\  \\       /:/  /    \r\n               /:|:|  |   *  /:/  /     *  /:/\\:\\  \\  *  /:/__/     \r\n              /:/|:|__|__   /:/  /  ___   _\\:\\~\\:\\  \\   /::\\  \\ ___ \r\n             /:/ |::::\\__\\ /:/__/  /\\__\\ /\\ \\:\\ \\:\\__\\ /:/\\:\\  /\\__\\\r\n             \\/__/~~/:/  / \\:\\  \\ /:/  / \\:\\ \\:\\ \\/__/ \\/__\\:\\/:/  /\r\n                   /:/  /   \\:\\  /:/  /   \\:\\ \\:\\__\\        \\::/  / \r\n                  /:/  /     \\:\\/:/  /     \\:\\/:/  /        /:/  /  \r\n                 /:/  /       \\::/  /       \\::/  /        /:/  /   \r\n                 \\/__/         \\/__/         \\/__/         \\/__/    \r\n\r\nRunning PennMUSH 1.8.7\r\nContact: mush@gungnir.pennmush.org\r\n-----------------------------------------------------------------------------\r\nUse create ",
      "encoding": "ascii",
      "mssp": {
        "ANSI": "1",
        "CODEBASE": "PennMUSH 1.8.8p0",
        "FAMILY": "TinyMUD",
        "NAME": "M*U*S*H",
        "PLAYERS": "15",
        "PORT": "4201",
        "PUEBLO": "1",
        "SSL": "4202",
        "UPTIME": "1672885596",
        "WEBSITE": "http://client.pennmush.org/guest/m.u.s.h",
        "XTERM 256 COLORS": "1"
      },
      "option_states": {
        "server_offered": {
          "CHARSET": true,
          "GMCP": true,
          "MSSP": true
        },
        "server_requested": {
          "LINEMODE": true,
          "NAWS": true,
          "TTYPE": true
        }
      },
      "timing": {
        "probe": 0.15306448936462402,
        "total": 0.6535429954528809
      }
    }
  },
  "sessions": [
    {
      "connected": "2026-02-08T06:14:25.174528+00:00",
      "host": "mush.pennmush.org",
      "ip": "45.79.113.99",
      "port": 4201
    }
  ]
}

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=mush.pennmush.org port=4201
INFO client_base.py:174 Connected to <Peer 45.79.113.99 4201>
DEBUG stream_writer.py:692 recv IAC DO LINEMODE
DEBUG stream_writer.py:1733 handle_do(LINEMODE)
DEBUG stream_writer.py:3030 pending_option[WILL + LINEMODE] = True
DEBUG stream_writer.py:933 send IAC WILL LINEMODE
DEBUG stream_writer.py:3030 pending_option[SB + LINEMODE] = True
DEBUG stream_writer.py:3030 local_option[LINEMODE] = True
DEBUG stream_writer.py:3030 pending_option[WILL + LINEMODE] = False
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:692 recv IAC WILL CHARSET
DEBUG stream_writer.py:710 WILL CHARSET (bi-directional capability exchange)
DEBUG stream_writer.py:1863 handle_will(CHARSET)
DEBUG stream_writer.py:3030 pending_option[DO + CHARSET] = True
DEBUG stream_writer.py:933 send IAC DO CHARSET
DEBUG stream_writer.py:3030 remote_option[CHARSET] = True
DEBUG stream_writer.py:3030 pending_option[DO + CHARSET] = False
DEBUG stream_writer.py:692 recv IAC WILL MSSP
DEBUG stream_writer.py:708 WILL MSSP unsolicited
DEBUG stream_writer.py:1863 handle_will(MSSP)
DEBUG stream_writer.py:3030 pending_option[DO + MSSP] = True
DEBUG stream_writer.py:933 send IAC DO MSSP
DEBUG stream_writer.py:3030 remote_option[MSSP] = True
DEBUG stream_writer.py:3030 pending_option[DO + MSSP] = False
DEBUG stream_writer.py:692 recv IAC WILL GMCP
DEBUG stream_writer.py:708 WILL GMCP unsolicited
DEBUG stream_writer.py:1863 handle_will(GMCP)
DEBUG stream_writer.py:3030 pending_option[DO + GMCP] = True
DEBUG stream_writer.py:933 send IAC DO GMCP
DEBUG stream_writer.py:3030 remote_option[GMCP] = True
DEBUG stream_writer.py:3030 pending_option[DO + GMCP] = False
DEBUG stream_writer.py:684 begin sub-negotiation SB LINEMODE
DEBUG stream_writer.py:671 sub-negotiation cmd LINEMODE SE completion byte
DEBUG stream_writer.py:3030 pending_option[SB + LINEMODE] = False
DEBUG stream_writer.py:2498 recv IAC SB LINEMODE LINEMODE-MODE b'\t' IAC SE
DEBUG stream_writer.py:1241 set Linemode <b'\r': lit_echo:False, soft_tab:True, ack:True, trapsig:False, remote:False, local:True>
DEBUG stream_writer.py:1244 send IAC SB LINEMODE LINEMODE-MODE <b'\r': lit_echo:False, soft_tab:True, ack:True, trapsig:False,
    remote:False, local:True> IAC SE
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 stream_writer.py:684 begin sub-negotiation SB CHARSET
DEBUG stream_writer.py:671 sub-negotiation cmd CHARSET SE completion byte
DEBUG stream_writer.py:2025 [SB + CHARSET] unsolicited
INFO client.py:233 LookupError: encoding x-penn-def not available
DEBUG client.py:266 encoding negotiated: UTF-8
DEBUG stream_writer.py:2105 send IAC SB CHARSET ACCEPTED UTF-8 IAC SE
DEBUG stream_writer.py:684 begin sub-negotiation SB MSSP
DEBUG stream_writer.py:671 sub-negotiation cmd MSSP SE completion byte
DEBUG stream_writer.py:2025 [SB + MSSP] unsolicited
DEBUG stream_writer.py:1637 MSSP: {'NAME': 'M*U*S*H', 'PLAYERS': '17', 'UPTIME': '1672885596', 'PORT': '4201', 'SSL': '4202',
    'PUEBLO': '1', 'CODEBASE': 'PennMUSH 1.8.8p0', 'FAMILY': 'TinyMUD', 'WEBSITE': 'http://client.pennmush.org/guest/m.u.s.h',
    'ANSI': '1', 'XTERM 256 COLORS': '1'}
DEBUG client_base.py:460 negotiation complete after 2.00s.
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 + 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 + MSDP] = True
DEBUG stream_writer.py:933 send IAC DO MSDP
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 BINARY
DEBUG stream_writer.py:1985 handle_wont(BINARY)
DEBUG stream_writer.py:3030 remote_option[BINARY] = False
DEBUG stream_writer.py:3030 pending_option[DO + BINARY] = False
DEBUG stream_writer.py:692 recv IAC WILL SGA
DEBUG stream_writer.py:1863 handle_will(SGA)
DEBUG stream_writer.py:907 skip DO SGA; pending_option = True
DEBUG stream_writer.py:3030 remote_option[SGA] = True
DEBUG stream_writer.py:3030 pending_option[DO + SGA] = False
DEBUG stream_writer.py:692 recv IAC DO SGA
DEBUG stream_writer.py:1733 handle_do(SGA)
DEBUG stream_writer.py:3030 pending_option[WILL + SGA] = True
DEBUG stream_writer.py:933 send IAC WILL SGA
DEBUG stream_writer.py:3030 local_option[SGA] = True
DEBUG stream_writer.py:3030 pending_option[WILL + SGA] = False
DEBUG stream_writer.py:692 recv IAC WONT ECHO
DEBUG stream_writer.py:1985 handle_wont(ECHO)
DEBUG stream_writer.py:3030 remote_option[ECHO] = False
DEBUG stream_writer.py:3030 pending_option[DO + ECHO] = 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
DEBUG stream_writer.py:692 recv IAC WONT EOR
DEBUG stream_writer.py:1985 handle_wont(EOR)
DEBUG stream_writer.py:3030 remote_option[EOR] = False
DEBUG stream_writer.py:3030 pending_option[DO + EOR] = False
DEBUG stream_writer.py:692 recv IAC WONT COM_PORT_OPTION
DEBUG stream_writer.py:1985 handle_wont(COM_PORT_OPTION)
DEBUG stream_writer.py:3030 remote_option[COM_PORT_OPTION] = False
DEBUG stream_writer.py:3030 pending_option[DO + COM_PORT_OPTION] = False
DEBUG stream_writer.py:692 recv IAC WONT MSDP
DEBUG stream_writer.py:1985 handle_wont(MSDP)
DEBUG stream_writer.py:3030 remote_option[MSDP] = False
DEBUG stream_writer.py:3030 pending_option[DO + MSDP] = False
DEBUG stream_writer.py:692 recv IAC WONT MSP
DEBUG stream_writer.py:1985 handle_wont(MSP)
DEBUG stream_writer.py:3030 remote_option[MSP] = False
DEBUG stream_writer.py:3030 pending_option[DO + MSP] = False
DEBUG stream_writer.py:692 recv IAC WONT MXP
DEBUG stream_writer.py:1985 handle_wont(MXP)
DEBUG stream_writer.py:3030 remote_option[MXP] = False
DEBUG stream_writer.py:3030 pending_option[DO + MXP] = False
DEBUG stream_writer.py:692 recv IAC WONT ZMP
DEBUG stream_writer.py:1985 handle_wont(ZMP)
DEBUG stream_writer.py:3030 remote_option[ZMP] = False
DEBUG stream_writer.py:3030 pending_option[DO + ZMP] = False
DEBUG stream_writer.py:692 recv IAC WONT AARDWOLF
DEBUG stream_writer.py:1985 handle_wont(AARDWOLF)
DEBUG stream_writer.py:3030 remote_option[AARDWOLF] = False
DEBUG stream_writer.py:3030 pending_option[DO + AARDWOLF] = False
DEBUG stream_writer.py:692 recv IAC WONT ATCP
DEBUG stream_writer.py:1985 handle_wont(ATCP)
DEBUG stream_writer.py:3030 remote_option[ATCP] = False
DEBUG stream_writer.py:3030 pending_option[DO + ATCP] = False
INFO fingerprinting.py:746 connection for server fingerprint 9fcde0bb3ad09561
INFO client_base.py:105 Connection closed to <Peer 45.79.113.99 4201>

Generated by telnetlib3-fingerprint

telnetlib3-fingerprint --loglevel=debug mush.pennmush.org 4201