OpenSSH7.4\r\n

SSH-2.0-OpenSSH_7.4\r\n

nginx

HTTP/1.1 403 Forbidden
Server: nginx
Date: Tue, 07 Jan 2025 19:58:36 GMT
Content-Type: text/html
Content-Length: 548
Connection: keep-alive

Prometheus Node Exporter1.4.0

HTTP/1.1 400 Bad Request
Content-Type: text/plain; charset=utf-8
Connection: close

400 Bad Request
Prometheus Node Exporter:
  node_exporter_build_info:
    branch: HEAD
    goversion: go1.19.1
    revision: 7da1321761b3b8dfc9e496e1a60e6a476fec6018
    version: 1.4.0
  node_os_info:
    id: centos
    id_like: rhel fedora
    name: CentOS Linux
    pretty_name: CentOS Linux 7 (Core)
    version: 7 (Core)
    version_id: 7
  node_uname_info:
    domainname: (none)
    machine: x86_64
    nodename: 206-238-197-32
    release: 3.10.0-1160.71.1.el7.x86_64
    sysname: Linux
    version: #1 SMP Tue Jun 28 15:37:28 UTC 2022
  node_dmi_info:
    bios_date: 04/01/2014
    bios_vendor: SeaBIOS
    bios_version: 1.13.0-2.el7
    chassis_asset_tag: www.zstack.io
    chassis_version: RHEL 7.6.0 PC (i440FX + PIIX, 1996)
    product_name: KVM
    product_serial: dc0f46ea-da59-4d38-be21-46f7cdbd6c90
    product_uuid: B5F9625A-FBBA-4209-B1F4-C2309FA3021B
    product_version: RHEL 7.6.0 PC (i440FX + PIIX, 1996)
    system_vendor: Red Hat
  node_network_info:
    lo:
      address: 00:00:00:00:00:00
      broadcast: 00:00:00:00:00:00
      device: lo
      operstate: unknown
    eth0:
      address: fa:29:f5:39:66:00
      broadcast: ff:ff:ff:ff:ff:ff
      device: eth0
      operstate: up

FA:29:F5:39:66:00
    Unknown