104.57.170.70

104.57.170.70:6840

Connection Banner:

telnetd.device:  Waiting for unit to answer.
telnetd.device:  Connected to TCP/IP port 6840 unit 0.

104.57.170.70:6840

Encoding

Effective encoding: cp437
Scanner detected: ascii

Telnet Fingerprint

0e8c326f7449f30f…

This fingerprint is shared by 18 other servers.

Options offered by server: BINARY, ECHO, SGA, STATUS

Options requested from client: BINARY, LINEMODE, NAWS, TSPEED

Data source: 0e8c326f7449f30f/11ac1de308b403d2.json

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

{
  "server-probe": {
    "fingerprint": "0e8c326f7449f30f",
    "fingerprint-data": {
      "offered-options": [
        "BINARY",
        "ECHO",
        "SGA",
        "STATUS"
      ],
      "probed-protocol": "server",
      "refused-options": [
        "AARDWOLF",
        "ATCP",
        "CHARSET",
        "COM_PORT",
        "EOR",
        "GMCP",
        "MSDP",
        "MSP",
        "MSSP",
        "MXP",
        "ZMP"
      ],
      "requested-options": [
        "BINARY",
        "LINEMODE",
        "NAWS",
        "TSPEED"
      ],
      "scan-type": "quick"
    },
    "session_data": {
      "banner_after_return": "",
      "banner_before_return": "\r\ntelnetd.device:  Waiting for unit to answer.\r\ntelnetd.device:  Connected to TCP/IP port 6840 unit 0.\r\n\u0007\r\n",
      "encoding": "ascii",
      "option_states": {
        "server_offered": {
          "ECHO": true,
          "SGA": true,
          "STATUS": true
        },
        "server_requested": {
          "BINARY": true,
          "LINEMODE": true,
          "NAWS": true,
          "TSPEED": true
        }
      },
      "scan_type": "quick",
      "timing": {
        "probe": 0.35497617721557617,
        "total": 5.512162685394287
      }
    }
  },
  "sessions": [
    {
      "connected": "2026-02-09T19:35:29.679274+00:00",
      "host": "104.57.170.70",
      "ip": "104.57.170.70",
      "port": 6840
    }
  ]
}

Connection Log

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

DEBUG client.py:863 Fingerprint client: host=104.57.170.70 port=6840
INFO client_base.py:174 Connected to <Peer 104.57.170.70 6840>
DEBUG stream_writer.py:706 recv IAC DO NAWS
DEBUG stream_writer.py:1767 handle_do(NAWS)
DEBUG stream_writer.py:3167 pending_option[WILL + NAWS] = True
DEBUG stream_writer.py:947 send IAC WILL NAWS
DEBUG stream_writer.py:2339 send IAC SB NAWS (rows=25, cols=80) IAC SE
DEBUG stream_writer.py:3167 local_option[NAWS] = True
DEBUG stream_writer.py:3167 pending_option[WILL + NAWS] = False
DEBUG stream_writer.py:706 recv IAC WILL STATUS
DEBUG stream_writer.py:722 WILL STATUS unsolicited
DEBUG stream_writer.py:1897 handle_will(STATUS)
DEBUG stream_writer.py:3167 remote_option[STATUS] = True
DEBUG stream_writer.py:1038 send IAC SB STATUS SEND IAC SE
DEBUG stream_writer.py:3167 pending_option[SB + STATUS] = True
DEBUG stream_writer.py:706 recv IAC DO TSPEED
DEBUG stream_writer.py:1767 handle_do(TSPEED)
DEBUG stream_writer.py:3167 pending_option[WILL + TSPEED] = True
DEBUG stream_writer.py:947 send IAC WILL TSPEED
DEBUG stream_writer.py:3167 pending_option[SB + TSPEED] = True
DEBUG stream_writer.py:3167 local_option[TSPEED] = True
DEBUG stream_writer.py:3167 pending_option[WILL + TSPEED] = False
DEBUG stream_writer.py:706 recv IAC DO LINEMODE
DEBUG stream_writer.py:1767 handle_do(LINEMODE)
DEBUG stream_writer.py:3167 pending_option[WILL + LINEMODE] = True
DEBUG stream_writer.py:947 send IAC WILL LINEMODE
DEBUG stream_writer.py:3167 pending_option[SB + LINEMODE] = True
DEBUG stream_writer.py:3167 local_option[LINEMODE] = True
DEBUG stream_writer.py:3167 pending_option[WILL + LINEMODE] = False
DEBUG stream_writer.py:706 recv IAC DO BINARY
DEBUG stream_writer.py:1767 handle_do(BINARY)
DEBUG stream_writer.py:3167 pending_option[WILL + BINARY] = True
DEBUG stream_writer.py:947 send IAC WILL BINARY
DEBUG stream_writer.py:3167 local_option[BINARY] = True
DEBUG stream_writer.py:3167 pending_option[WILL + BINARY] = False
DEBUG stream_writer.py:706 recv IAC WILL SGA
DEBUG stream_writer.py:722 WILL SGA unsolicited
DEBUG stream_writer.py:1897 handle_will(SGA)
DEBUG stream_writer.py:3167 pending_option[DO + SGA] = True
DEBUG stream_writer.py:947 send IAC DO SGA
DEBUG stream_writer.py:3167 remote_option[SGA] = True
DEBUG stream_writer.py:3167 pending_option[DO + SGA] = False
DEBUG stream_writer.py:706 recv IAC WILL ECHO
DEBUG stream_writer.py:722 WILL ECHO unsolicited
DEBUG stream_writer.py:1897 handle_will(ECHO)
DEBUG stream_writer.py:3167 pending_option[DO + ECHO] = True
DEBUG stream_writer.py:947 send IAC DO ECHO
DEBUG stream_writer.py:3167 remote_option[ECHO] = True
DEBUG stream_writer.py:3167 pending_option[DO + ECHO] = False
DEBUG stream_writer.py:698 begin sub-negotiation SB TSPEED
DEBUG stream_writer.py:685 sub-negotiation cmd TSPEED SE completion byte
DEBUG stream_writer.py:3167 pending_option[SB + TSPEED] = False
DEBUG stream_writer.py:2166 recv TSPEED SEND: b''
DEBUG stream_writer.py:2197 send: IAC SB TSPEED IS b'38400',b'38400' IAC SE
DEBUG client_base.py:463 negotiation failed after 4.00s.
DEBUG client_base.py:470 failed-reply: 'SB STATUS, SB LINEMODE'
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 + 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
DEBUG stream_writer.py:706 recv IAC WILL BINARY
DEBUG stream_writer.py:1897 handle_will(BINARY)
DEBUG stream_writer.py:921 skip DO BINARY; pending_option = True
DEBUG stream_writer.py:3167 remote_option[BINARY] = True
DEBUG stream_writer.py:3167 pending_option[DO + BINARY] = False
DEBUG stream_writer.py:706 recv IAC WONT CHARSET
DEBUG stream_writer.py:2022 handle_wont(CHARSET)
DEBUG stream_writer.py:3167 remote_option[CHARSET] = False
DEBUG stream_writer.py:3167 pending_option[DO + CHARSET] = False
DEBUG stream_writer.py:706 recv IAC WONT EOR
DEBUG stream_writer.py:2022 handle_wont(EOR)
DEBUG stream_writer.py:3167 remote_option[EOR] = False
DEBUG stream_writer.py:3167 pending_option[DO + EOR] = False
DEBUG stream_writer.py:706 recv IAC WONT COM_PORT_OPTION
DEBUG stream_writer.py:2022 handle_wont(COM_PORT_OPTION)
DEBUG stream_writer.py:3167 remote_option[COM_PORT_OPTION] = False
DEBUG stream_writer.py:3167 pending_option[DO + COM_PORT_OPTION] = False
DEBUG stream_writer.py:706 recv IAC WONT GMCP
DEBUG stream_writer.py:2022 handle_wont(GMCP)
DEBUG stream_writer.py:3167 remote_option[GMCP] = False
DEBUG stream_writer.py:3167 pending_option[DO + GMCP] = False
DEBUG stream_writer.py:706 recv IAC WONT MSDP
DEBUG stream_writer.py:2022 handle_wont(MSDP)
DEBUG stream_writer.py:3167 remote_option[MSDP] = False
DEBUG stream_writer.py:3167 pending_option[DO + MSDP] = False
DEBUG stream_writer.py:706 recv IAC WONT MSSP
DEBUG stream_writer.py:2022 handle_wont(MSSP)
DEBUG stream_writer.py:3167 remote_option[MSSP] = False
DEBUG stream_writer.py:3167 pending_option[DO + MSSP] = False
DEBUG stream_writer.py:706 recv IAC WONT MSP
DEBUG stream_writer.py:2022 handle_wont(MSP)
DEBUG stream_writer.py:3167 remote_option[MSP] = False
DEBUG stream_writer.py:3167 pending_option[DO + MSP] = False
DEBUG stream_writer.py:706 recv IAC WONT MXP
DEBUG stream_writer.py:2022 handle_wont(MXP)
DEBUG stream_writer.py:3167 remote_option[MXP] = False
DEBUG stream_writer.py:3167 pending_option[DO + MXP] = False
DEBUG stream_writer.py:706 recv IAC WONT ZMP
DEBUG stream_writer.py:2022 handle_wont(ZMP)
DEBUG stream_writer.py:3167 remote_option[ZMP] = False
DEBUG stream_writer.py:3167 pending_option[DO + ZMP] = False
DEBUG stream_writer.py:706 recv IAC WONT AARDWOLF
DEBUG stream_writer.py:2022 handle_wont(AARDWOLF)
DEBUG stream_writer.py:3167 remote_option[AARDWOLF] = False
DEBUG stream_writer.py:3167 pending_option[DO + AARDWOLF] = False
DEBUG stream_writer.py:706 recv IAC WONT ATCP
DEBUG stream_writer.py:2022 handle_wont(ATCP)
DEBUG stream_writer.py:3167 remote_option[ATCP] = False
DEBUG stream_writer.py:3167 pending_option[DO + ATCP] = False
INFO fingerprinting.py:746 connection for server fingerprint 0e8c326f7449f30f
INFO client_base.py:105 Connection closed to <Peer 104.57.170.70 6840>

Generated by telnetlib3-fingerprint

telnetlib3-fingerprint --loglevel=debug 104.57.170.70 6840

bbs.catracing.org:6400

Connection Banner:

1tcpser: establishing connection...1
1tcpser: connecting to the system..1
1tcpser: please wait...1



       IMAGE BBS 64 V3.0 (C) 2020

CONNECTION CONFIRMED:  38400


HIT YOUR BACKSPACE/DELETE KEY 1 TIME 1:

bbs.catracing.org:6400

Encoding

Effective encoding: cp437
Scanner detected: ascii

Telnet Fingerprint

a8a260cc4662430c…

This fingerprint is shared by 169 other servers.

Data source: a8a260cc4662430c/d087f678cdb11c31.json

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

{
  "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": "\u001b[6n\r\n\r\nHIT YOUR BACKSPACE/DELETE KEY 1 TIME 1\u0007: ",
      "banner_before_return": "1tcpser: establishing connection...1\r\n1tcpser: connecting to the system..1\r\n1tcpser: please wait...1\r\n\r\n\n\r\n       IMAGE BBS 64 V3.0 (C) 2020 \r\n\r\nCONNECTION CONFIRMED:  38400\r\n\u001b[6n\r\n\r\nHIT YOUR BACKSPACE/DELETE KEY 1 TIME 1\u0007: ",
      "encoding": "ascii",
      "option_states": {
        "server_offered": {},
        "server_requested": {}
      },
      "scan_type": "quick",
      "timing": {
        "probe": 0.503821611404419,
        "total": 11.901793003082275
      }
    }
  },
  "sessions": [
    {
      "connected": "2026-02-09T19:33:44.898863+00:00",
      "host": "bbs.catracing.org",
      "ip": "104.57.170.70",
      "port": 6400
    }
  ]
}

Connection Log

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

DEBUG client.py:863 Fingerprint client: host=bbs.catracing.org port=6400
INFO client_base.py:174 Connected to <Peer 104.57.170.70 6400>
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 104.57.170.70 6400>

Generated by telnetlib3-fingerprint

telnetlib3-fingerprint --loglevel=debug bbs.catracing.org 6400