bbs.at2k.org:23

Connection Banner:

bbs.at2k.org:23

Encoding

  • Effective encoding: cp437

  • Scanner detected: ascii

Telnet Fingerprint

cfa317a91359cb0b…

This fingerprint is shared by 29 other servers.

Options offered by server: BINARY, ECHO, SGA

Options requested from client: BINARY, SGA

Data source: cfa317a91359cb0b/0bc06706645756e2.json

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

{
  "server-probe": {
    "fingerprint": "cfa317a91359cb0b",
    "fingerprint-data": {
      "offered-options": [
        "BINARY",
        "ECHO",
        "SGA"
      ],
      "probed-protocol": "server",
      "refused-options": [
        "AARDWOLF",
        "ATCP",
        "CHARSET",
        "COM_PORT",
        "EOR",
        "GMCP",
        "MSDP",
        "MSP",
        "MSSP",
        "MXP",
        "STATUS",
        "ZMP"
      ],
      "requested-options": [
        "BINARY",
        "SGA"
      ],
      "scan-type": "quick"
    },
    "session_data": {
      "banner_after_return": "**EMSI_REQA77E\r",
      "banner_before_return": "\u001b[2J\u001b[1;1H\u001b[0;0m\u001b[0;1m\ufffd\ufffd\u001b[0m\ufffd\ufffd\u001b[1;30m\ufffd\u001b[36mVADV32 \u001b[0;36mv6.1.230119 - (c) 2004-2023 Aspect Technologies - www.vadvbbs.com\u001b[0m\r\n\u001b[1;30mResolving Hostname... \u001b[0mUnable to Resolve\r\n\r\u001b[0;32mo\u001b[1m NetFoss \u001b[0;32m- Revision 5 FOSSIL - Com Eng v1.26b1 - (c) 2001-2022 pcmicro.com\u001b[37m\r\n\u0000\r\nConnected @ 11520 to AT2k Design BBS on line 1\r\n\r\nVirtual Advanced 2.10  for DOS\r\nMulti-User Multi-Network Graphical Bulletin Board System\r\nSerial #00000001\r\n\r\n\r\nNetwork Detection Phase\r\nPress [Esc] Twice or wait for BBS.\r\n\ufffd\ufffd",
      "encoding": "ascii",
      "option_states": {
        "server_offered": {
          "0x24": false,
          "BINARY": true,
          "ECHO": true,
          "LINEMODE": false,
          "SGA": true
        },
        "server_requested": {
          "BINARY": true,
          "ECHO": false,
          "SGA": true
        }
      },
      "scan_type": "quick",
      "timing": {
        "probe": 0.20674395561218262,
        "total": 4.827435731887817
      }
    }
  },
  "sessions": [
    {
      "connected": "2026-02-09T19:33:06.650884+00:00",
      "host": "bbs.at2k.org",
      "ip": "104.36.201.233",
      "port": 23
    }
  ]
}

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.at2k.org port=23
INFO client_base.py:174 Connected to <Peer 104.36.201.233 23>
DEBUG stream_writer.py:706 recv IAC DO SGA
DEBUG stream_writer.py:1767 handle_do(SGA)
DEBUG stream_writer.py:3167 pending_option[WILL + SGA] = True
DEBUG stream_writer.py:947 send IAC WILL SGA
DEBUG stream_writer.py:3167 local_option[SGA] = True
DEBUG stream_writer.py:3167 pending_option[WILL + SGA] = 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 DONT ECHO
DEBUG stream_writer.py:1860 handle_dont(ECHO)
DEBUG stream_writer.py:3167 pending_option[WILL + ECHO] = False
DEBUG stream_writer.py:3167 local_option[ECHO] = 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:706 recv IAC WONT LINEMODE
DEBUG stream_writer.py:2022 handle_wont(LINEMODE)
DEBUG stream_writer.py:3167 remote_option[LINEMODE] = False
DEBUG stream_writer.py:3167 pending_option[DO + LINEMODE] = False
DEBUG stream_writer.py:706 recv IAC WONT b'$'
DEBUG stream_writer.py:2022 handle_wont(b'$')
DEBUG stream_writer.py:3167 remote_option[b'$'] = False
DEBUG stream_writer.py:3167 pending_option[DO + b'$'] = 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:706 recv IAC DONT ECHO
DEBUG stream_writer.py:1860 handle_dont(ECHO)
DEBUG stream_writer.py:706 recv IAC WILL BINARY
DEBUG stream_writer.py:722 WILL BINARY unsolicited
DEBUG stream_writer.py:1897 handle_will(BINARY)
DEBUG stream_writer.py:3167 pending_option[DO + BINARY] = True
DEBUG stream_writer.py:947 send IAC DO BINARY
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 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:706 recv IAC DO SGA
DEBUG stream_writer.py:1767 handle_do(SGA)
DEBUG client_base.py:460 negotiation complete after 2.00s.
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
DEBUG stream_writer.py:706 recv IAC WONT STATUS
DEBUG stream_writer.py:2022 handle_wont(STATUS)
DEBUG stream_writer.py:3167 remote_option[STATUS] = False
DEBUG stream_writer.py:3167 pending_option[DO + STATUS] = 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 cfa317a91359cb0b
INFO client_base.py:105 Connection closed to <Peer 104.36.201.233 23>

Generated by telnetlib3-fingerprint

telnetlib3-fingerprint --loglevel=debug bbs.at2k.org 23