www.derpymud.com

Connection Banner:

Welcome to DerpyMUD! enter user name:

Server URLs

Server Info

  • Server Location: 🇬🇧 United Kingdom (GeoIP)

Telnet Fingerprint

e9960a19228b2758

This fingerprint is unique to this server.

Options offered by server: SGA

Options requested from client: NAWS

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

Show JSON
{
  "server-probe": {
    "fingerprint": "e9960a19228b2758",
    "fingerprint-data": {
      "offered-options": [
        "SGA"
      ],
      "probed-protocol": "server",
      "refused-options": [
        "AARDWOLF",
        "ATCP",
        "BINARY",
        "CHARSET",
        "COM_PORT",
        "ECHO",
        "EOR",
        "GMCP",
        "MSDP",
        "MSP",
        "MSSP",
        "MXP",
        "STATUS",
        "ZMP"
      ],
      "requested-options": [
        "NAWS"
      ],
      "scan-type": "quick"
    },
    "session_data": {
      "banner_after_return": "",
      "banner_before_return": "Welcome to DerpyMUD!\r\n\r\nenter user name:\r\n",
      "dsr_replies": 0,
      "dsr_requests": 0,
      "encoding": "ascii",
      "option_states": {
        "server_offered": {
          "0x55": false,
          "0x56": false
        },
        "server_requested": {
          "NAWS": true
        }
      },
      "scan_type": "quick",
      "timing": {
        "probe": 0.353595495223999,
        "total": 4.8589112758636475
      }
    }
  },
  "sessions": [
    {
      "connected": "2026-02-15T01:18:27.990378+00:00",
      "host": "www.derpymud.com",
      "ip": "86.26.80.47",
      "port": 23
    }
  ]
}

Connection Log

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

Generated by telnetlib3-fingerprint

telnetlib3-fingerprint --loglevel=debug www.derpymud.com 23
Show Logfile
DEBUG client.py:998 Fingerprint client: host=www.derpymud.com port=23
INFO client_base.py:175 Connected to <Peer 86.26.80.47 23>
DEBUG client_base.py:494 negotiation complete after 0.00s.
DEBUG stream_writer.py:707 recv IAC DO NAWS
DEBUG stream_writer.py:1770 handle_do(NAWS)
DEBUG stream_writer.py:3174 pending_option[WILL + NAWS] = True
DEBUG stream_writer.py:950 send IAC WILL NAWS
DEBUG stream_writer.py:2346 send IAC SB NAWS (rows=25, cols=80) IAC SE
DEBUG stream_writer.py:3174 local_option[NAWS] = True
DEBUG stream_writer.py:3174 pending_option[WILL + NAWS] = False
DEBUG stream_writer.py:707 recv IAC WILL MCCP2_COMPRESS
DEBUG stream_writer.py:723 WILL MCCP2_COMPRESS unsolicited
DEBUG stream_writer.py:1900 handle_will(MCCP2_COMPRESS)
DEBUG stream_writer.py:3174 remote_option[MCCP2_COMPRESS] = False
DEBUG stream_writer.py:950 send IAC DONT MCCP2_COMPRESS
WARNING stream_writer.py:2008 Unhandled: WILL MCCP2_COMPRESS.
DEBUG stream_writer.py:707 recv IAC WILL MCCP_COMPRESS
DEBUG stream_writer.py:723 WILL MCCP_COMPRESS unsolicited
DEBUG stream_writer.py:1900 handle_will(MCCP_COMPRESS)
DEBUG stream_writer.py:3174 remote_option[MCCP_COMPRESS] = False
DEBUG stream_writer.py:950 send IAC DONT MCCP_COMPRESS
WARNING stream_writer.py:2008 Unhandled: WILL MCCP_COMPRESS.
DEBUG stream_writer.py:707 recv IAC DO NAWS
DEBUG stream_writer.py:1770 handle_do(NAWS)
DEBUG stream_writer.py:2346 send IAC SB NAWS (rows=25, cols=80) IAC SE
DEBUG stream_writer.py:3174 pending_option[DO + BINARY] = True
DEBUG stream_writer.py:950 send IAC DO BINARY
DEBUG stream_writer.py:3174 pending_option[DO + SGA] = True
DEBUG stream_writer.py:950 send IAC DO SGA
DEBUG stream_writer.py:3174 pending_option[DO + ECHO] = True
DEBUG stream_writer.py:950 send IAC DO ECHO
DEBUG stream_writer.py:3174 pending_option[DO + STATUS] = True
DEBUG stream_writer.py:950 send IAC DO STATUS
DEBUG stream_writer.py:3174 pending_option[DO + CHARSET] = True
DEBUG stream_writer.py:950 send IAC DO CHARSET
DEBUG stream_writer.py:3174 pending_option[DO + EOR] = True
DEBUG stream_writer.py:950 send IAC DO EOR
DEBUG stream_writer.py:3174 pending_option[DO + COM_PORT_OPTION] = True
DEBUG stream_writer.py:950 send IAC DO COM_PORT_OPTION
DEBUG stream_writer.py:3174 pending_option[DO + GMCP] = True
DEBUG stream_writer.py:950 send IAC DO GMCP
DEBUG stream_writer.py:3174 pending_option[DO + MSDP] = True
DEBUG stream_writer.py:950 send IAC DO MSDP
DEBUG stream_writer.py:3174 pending_option[DO + MSSP] = True
DEBUG stream_writer.py:950 send IAC DO MSSP
DEBUG stream_writer.py:3174 pending_option[DO + MSP] = True
DEBUG stream_writer.py:950 send IAC DO MSP
DEBUG stream_writer.py:3174 pending_option[DO + MXP] = True
DEBUG stream_writer.py:950 send IAC DO MXP
DEBUG stream_writer.py:3174 pending_option[DO + ZMP] = True
DEBUG stream_writer.py:950 send IAC DO ZMP
DEBUG stream_writer.py:3174 pending_option[DO + AARDWOLF] = True
DEBUG stream_writer.py:950 send IAC DO AARDWOLF
DEBUG stream_writer.py:3174 pending_option[DO + ATCP] = True
DEBUG stream_writer.py:950 send IAC DO ATCP
DEBUG stream_writer.py:707 recv IAC WONT BINARY
DEBUG stream_writer.py:2025 handle_wont(BINARY)
DEBUG stream_writer.py:3174 remote_option[BINARY] = False
DEBUG stream_writer.py:3174 pending_option[DO + BINARY] = False
DEBUG stream_writer.py:707 recv IAC WILL SGA
DEBUG stream_writer.py:1900 handle_will(SGA)
DEBUG stream_writer.py:924 skip DO SGA; pending_option = True
DEBUG stream_writer.py:3174 remote_option[SGA] = True
DEBUG stream_writer.py:3174 pending_option[DO + SGA] = False
DEBUG stream_writer.py:707 recv IAC WONT ECHO
DEBUG stream_writer.py:2025 handle_wont(ECHO)
DEBUG stream_writer.py:3174 remote_option[ECHO] = False
DEBUG stream_writer.py:3174 pending_option[DO + ECHO] = False
DEBUG stream_writer.py:707 recv IAC WONT STATUS
DEBUG stream_writer.py:2025 handle_wont(STATUS)
DEBUG stream_writer.py:3174 remote_option[STATUS] = False
DEBUG stream_writer.py:3174 pending_option[DO + STATUS] = False
DEBUG stream_writer.py:707 recv IAC WONT CHARSET
DEBUG stream_writer.py:2025 handle_wont(CHARSET)
DEBUG stream_writer.py:3174 remote_option[CHARSET] = False
DEBUG stream_writer.py:3174 pending_option[DO + CHARSET] = False
DEBUG stream_writer.py:707 recv IAC WONT EOR
DEBUG stream_writer.py:2025 handle_wont(EOR)
DEBUG stream_writer.py:3174 remote_option[EOR] = False
DEBUG stream_writer.py:3174 pending_option[DO + EOR] = False
DEBUG stream_writer.py:707 recv IAC WONT COM_PORT_OPTION
DEBUG stream_writer.py:2025 handle_wont(COM_PORT_OPTION)
DEBUG stream_writer.py:3174 remote_option[COM_PORT_OPTION] = False
DEBUG stream_writer.py:3174 pending_option[DO + COM_PORT_OPTION] = False
DEBUG stream_writer.py:707 recv IAC WONT GMCP
DEBUG stream_writer.py:2025 handle_wont(GMCP)
DEBUG stream_writer.py:3174 remote_option[GMCP] = False
DEBUG stream_writer.py:3174 pending_option[DO + GMCP] = False
DEBUG stream_writer.py:707 recv IAC WONT MSDP
DEBUG stream_writer.py:2025 handle_wont(MSDP)
DEBUG stream_writer.py:3174 remote_option[MSDP] = False
DEBUG stream_writer.py:3174 pending_option[DO + MSDP] = False
DEBUG stream_writer.py:707 recv IAC WONT MSSP
DEBUG stream_writer.py:2025 handle_wont(MSSP)
DEBUG stream_writer.py:3174 remote_option[MSSP] = False
DEBUG stream_writer.py:3174 pending_option[DO + MSSP] = False
DEBUG stream_writer.py:707 recv IAC WONT MSP
DEBUG stream_writer.py:2025 handle_wont(MSP)
DEBUG stream_writer.py:3174 remote_option[MSP] = False
DEBUG stream_writer.py:3174 pending_option[DO + MSP] = False
DEBUG stream_writer.py:707 recv IAC WONT MXP
DEBUG stream_writer.py:2025 handle_wont(MXP)
DEBUG stream_writer.py:3174 remote_option[MXP] = False
DEBUG stream_writer.py:3174 pending_option[DO + MXP] = False
DEBUG stream_writer.py:707 recv IAC WONT ZMP
DEBUG stream_writer.py:2025 handle_wont(ZMP)
DEBUG stream_writer.py:3174 remote_option[ZMP] = False
DEBUG stream_writer.py:3174 pending_option[DO + ZMP] = False
DEBUG stream_writer.py:707 recv IAC WONT AARDWOLF
DEBUG stream_writer.py:2025 handle_wont(AARDWOLF)
DEBUG stream_writer.py:3174 remote_option[AARDWOLF] = False
DEBUG stream_writer.py:3174 pending_option[DO + AARDWOLF] = False
DEBUG stream_writer.py:707 recv IAC WONT ATCP
DEBUG stream_writer.py:2025 handle_wont(ATCP)
DEBUG stream_writer.py:3174 remote_option[ATCP] = False
DEBUG stream_writer.py:3174 pending_option[DO + ATCP] = False
INFO fingerprinting.py:737 new server fingerprint e9960a19228b2758
INFO client_base.py:106 Connection closed to <Peer 86.26.80.47 23>