220-TwoFTPd server ready.
220 Authenticate first.
530 Authentication failed.
502 No help is available.
502 Command not supported.

Postfix smtpd

220 vm-7e0a33e3.netangels.ru ESMTP Postfix (Debian/GNU)
250-vm-7e0a33e3.netangels.ru
250-PIPELINING
250-SIZE 10240000
250-VRFY
250-ETRN
250-STARTTLS
250-ENHANCEDSTATUSCODES
250-8BITMIME
250 DSN

Certificate:
    Data:
        Version: 3 (0x2)
        Serial Number:
            91:4e:93:5c:ef:0e:80:02
        Signature Algorithm: sha256WithRSAEncryption
        Issuer: CN=noc.netangels.ru
        Validity
            Not Before: Jan 11 13:05:02 2016 GMT
            Not After : Jan  8 13:05:02 2026 GMT
        Subject: CN=noc.netangels.ru
        Subject Public Key Info:
            Public Key Algorithm: rsaEncryption
                Public-Key: (2048 bit)
                Modulus:
                    00:c4:1e:b6:63:cc:74:1b:21:7c:c6:38:0f:dc:1a:
                    f9:a9:84:d2:ab:8e:19:4c:3d:6f:ed:3b:a7:a1:c1:
                    05:2d:cd:18:92:70:78:c5:dd:6d:e1:11:d0:26:7c:
                    2f:85:ea:10:55:8c:3c:08:ac:94:ed:7c:67:54:ec:
                    0d:03:4a:cb:b1:4d:d8:25:92:1e:c7:74:c1:dd:5f:
                    7e:07:cb:f9:ce:1c:f6:47:50:9e:ef:a2:aa:5b:33:
                    58:4d:f1:9b:91:16:79:1f:87:cf:c1:6b:f6:b6:22:
                    60:17:fb:43:34:07:5a:ef:6b:4a:6a:a0:c1:72:f7:
                    3d:6c:ff:ef:9b:21:b1:04:4f:72:18:dd:b4:14:3c:
                    48:b0:2c:d9:85:fb:35:3b:be:be:c2:a0:e7:2c:6b:
                    64:76:82:4b:75:1e:09:5a:87:30:d7:d3:d9:62:23:
                    39:9f:42:cf:bf:ea:57:b5:97:88:42:c1:e1:87:25:
                    23:a4:b8:c9:21:48:37:e1:c9:81:5f:15:74:11:ba:
                    4f:9f:5f:ac:d5:2a:18:48:6b:29:d1:d4:c9:63:ad:
                    7a:10:f6:0b:35:21:14:9d:b2:df:05:93:d4:15:4e:
                    df:77:56:15:f4:81:fe:5b:bb:07:65:3f:4b:e5:23:
                    19:26:1d:d7:6f:d6:19:7e:23:fe:9e:5b:65:56:61:
                    9b:0b
                Exponent: 65537 (0x10001)
        X509v3 extensions:
            X509v3 Basic Constraints: 
                CA:FALSE
    Signature Algorithm: sha256WithRSAEncryption
    Signature Value:
        1a:4f:24:aa:7c:8a:f2:90:50:60:09:f4:5d:ff:a7:2e:a3:e0:
        06:90:6e:e6:f0:47:b5:a4:02:15:32:c2:91:15:01:96:90:e8:
        16:f3:db:d8:90:37:24:95:00:56:d0:81:ec:65:c6:b2:de:b6:
        5c:ec:e0:00:5e:0a:d2:a4:8e:87:3b:bd:1a:ff:a7:a1:22:ff:
        e6:02:1e:cd:6c:27:72:de:b3:02:f1:2a:52:d9:80:ed:d5:f7:
        a0:7d:4c:4d:4a:ea:30:db:79:04:10:c1:2a:0a:39:3d:ef:55:
        b6:3f:94:6c:da:05:20:66:e8:a0:2a:9c:0d:14:54:72:79:1a:
        4e:f3:86:ab:5b:70:af:c9:4f:6f:b0:4d:1a:25:2f:dc:6d:1e:
        d6:bf:b5:33:b5:bf:d6:de:ac:79:21:a1:2c:05:a5:96:66:4a:
        61:ac:8c:1d:41:1b:c2:4d:82:1d:b9:a8:db:6f:75:c7:7c:53:
        90:04:ef:0d:99:3d:c2:f4:00:f2:39:4b:1e:bb:ee:8c:47:e4:
        45:24:ca:04:76:68:01:36:c5:67:5b:06:5a:f8:ec:78:dc:ea:
        b4:5f:4a:1f:52:92:aa:e6:69:59:d8:ef:c1:0c:39:23:94:ad:
        d8:f8:20:c8:28:a1:26:b7:54:e3:6e:95:d4:2a:7c:d0:d6:ca:
        3f:9e:d6:3f

nginx1.12.1

HTTP/1.1 200 OK
Server: nginx/1.12.1
Date: Sun, 29 Sep 2024 03:39:20 GMT
Content-Type: text/html; charset=UTF-8
Content-Length: 748
Connection: keep-alive
Accept-Ranges: bytes

NTP
protocolversion: 3
stratum: 3
leap: 0
precision: -23
rootdelay: 0.0284423828125
rootdisp: 0.0570526123047
refid: 1540447754
reftime: 3936788651.25
poll: 3