Postfix smtpd

220 aferim.click ESMTP Postfix (Ubuntu)
250-aferim.click
250-PIPELINING
250-SIZE 10240000
250-VRFY
250-ETRN
250-STARTTLS
250-ENHANCEDSTATUSCODES
250-8BITMIME
250-DSN
250-SMTPUTF8
250 CHUNKING

Certificate:
    Data:
        Version: 3 (0x2)
        Serial Number:
            67:da:79:b1:98:8f:31:54:51:f2:de:6d:58:10:cb:07:76:d8:c4:ed
        Signature Algorithm: sha256WithRSAEncryption
        Issuer: CN=box22.encsrvs.com
        Validity
            Not Before: Oct 12 13:35:43 2021 GMT
            Not After : Oct 10 13:35:43 2031 GMT
        Subject: CN=box22.encsrvs.com
        Subject Public Key Info:
            Public Key Algorithm: rsaEncryption
                Public-Key: (2048 bit)
                Modulus:
                    00:ac:14:81:6e:28:07:e4:d5:08:48:81:5b:73:6c:
                    06:47:c9:6e:13:2e:98:f0:40:8c:c0:75:50:af:ee:
                    80:9a:e5:19:0d:d5:78:5b:69:b7:36:76:2b:46:3a:
                    90:07:e8:83:5b:9f:4c:d3:06:9b:d0:81:66:df:1c:
                    0d:66:55:67:90:74:53:f3:28:4e:00:70:82:9e:ed:
                    2d:f6:8f:ae:d9:46:37:ed:da:d8:39:f2:fc:de:63:
                    8c:7b:89:ba:ad:6d:54:26:c6:95:b3:a5:0a:2a:9e:
                    bf:77:0f:ec:2c:c1:9e:8b:1e:ef:49:99:40:44:5a:
                    f4:9a:81:8b:c2:5c:9a:8e:c4:21:ca:8d:50:47:93:
                    f4:95:3a:2f:33:6e:74:64:a6:9c:e7:37:50:57:1f:
                    ea:79:5e:f2:ba:2d:ff:a8:f2:9c:b6:a5:2f:15:7c:
                    e3:3a:37:40:c4:a7:cc:24:6d:84:6a:ae:43:9f:f4:
                    52:1b:d5:dd:66:cc:01:c3:99:7b:16:38:4f:a7:0f:
                    a1:f7:b5:8b:f4:06:20:04:37:15:fd:45:fb:76:0d:
                    87:ce:7e:00:c7:e4:46:d0:21:ed:ff:d5:e2:40:ef:
                    1b:6e:14:2b:2e:88:f9:df:8e:7d:0c:22:f6:49:24:
                    b4:b4:49:5f:d9:2e:3c:46:95:10:81:2c:4c:45:4d:
                    f1:8d
                Exponent: 65537 (0x10001)
        X509v3 extensions:
            X509v3 Basic Constraints: 
                CA:FALSE
            X509v3 Subject Alternative Name: 
                DNS:box22.encsrvs.com
    Signature Algorithm: sha256WithRSAEncryption
    Signature Value:
        7a:cc:a3:54:a5:4a:7e:ec:da:ca:2d:17:ee:c6:08:9c:29:0b:
        e7:4d:f6:b1:2e:af:b6:b1:7b:8c:e4:0c:87:1d:00:5e:4a:fb:
        01:59:3f:7f:e9:2a:90:bb:6a:a5:69:c7:61:35:8d:b7:36:a4:
        3e:2f:08:f5:a4:98:29:80:68:75:b2:ab:fe:db:f7:6d:6c:2e:
        ac:d7:dd:e6:4d:48:89:d2:88:84:51:79:2c:64:d2:44:6b:7c:
        ec:d8:28:7f:87:40:11:b1:ab:4c:6c:0a:ec:24:7d:80:63:10:
        31:4e:21:9d:8a:96:5b:75:f4:c6:97:7f:4c:b6:a1:49:bd:ba:
        db:74:49:aa:a8:30:65:88:18:e7:ed:a4:a4:63:a7:05:eb:50:
        ea:ad:1d:26:40:58:82:a9:84:8d:57:fc:21:2a:59:cd:4e:90:
        66:cd:6e:63:87:d5:35:4f:e7:a0:8e:ba:03:85:71:fd:f5:59:
        20:1f:ba:2d:64:00:f8:b5:95:58:90:e5:ed:86:2e:d8:f6:8f:
        c0:26:bc:47:74:96:14:76:66:0f:35:08:51:c6:62:32:33:f4:
        88:3e:c2:d6:14:88:2c:a2:91:41:35:3e:96:f1:ff:73:34:65:
        e7:ad:2e:f4:fb:84:29:1e:0a:62:b5:a9:ae:70:88:5f:00:bd:
        47:2e:d2:67

nginx1.18.0

HTTP/1.1 200 OK
Server: nginx/1.18.0 (Ubuntu)
Date: Mon, 11 Nov 2024 22:43:07 GMT
Content-Type: text/html; charset=utf-8
Content-Length: 0
Connection: keep-alive

Tinyproxy1.11.0

HTTP/1.0 403 Access denied
Server: tinyproxy/1.11.0
Content-Type: text/html
Connection: close

Prometheus Node Exporter1.2.2

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: go1.16.7
    revision: 26645363b486e12be40af7ce4fc91e731a33104e
    version: 1.2.2
  node_uname_info:
    domainname: (none)
    machine: x86_64
    nodename: box22
    release: 5.15.0-107-generic
    sysname: Linux
    version: #117-Ubuntu SMP Fri Apr 26 12:26:49 UTC 2024
  node_network_info:
    gre0:
      address: 00:00:00:00
      broadcast: 00:00:00:00
      device: gre0
      operstate: down
    lo:
      address: 00:00:00:00:00:00
      broadcast: 00:00:00:00:00:00
      device: lo
      operstate: unknown
    gretap0:
      address: 00:00:00:00:00:00
      broadcast: ff:ff:ff:ff:ff:ff
      device: gretap0
      operstate: down
    gre200:
      address: 31:0c:e0:89
      broadcast: b9:7e:a7:53
      device: gre200
      operstate: unknown
    erspan0:
      address: 00:00:00:00:00:00
      broadcast: ff:ff:ff:ff:ff:ff
      device: erspan0
      operstate: down
    dummy0:
      address: c2:7a:3b:b8:de:6c
      broadcast: ff:ff:ff:ff:ff:ff
      device: dummy0
      duplex: unknown
      operstate: down
    dummy1:
      address: 12:ff:d8:17:b7:bf
      broadcast: ff:ff:ff:ff:ff:ff
      device: dummy1
      duplex: unknown
      operstate: down
    eth0:
      address: 96:00:00:e5:9d:8f
      broadcast: ff:ff:ff:ff:ff:ff
      device: eth0
      duplex: unknown
      operstate: up

96:00:00:E5:9D:8F
    Unknown