Pure-FTPd

220---------- Welcome to Pure-FTPd [privsep] [TLS] ----------
220-You are user number 1 of 50 allowed.
220-Local time is now 23:26. Server port: 21.
220-This is a private system - No anonymous login
220-IPv6 connections are also welcome on this server.
220 You will be disconnected after 15 minutes of inactivity.
421 Unable to read the indexed puredb file (or old format detected) - Try pure-pw mkdb
211-Extensions supported:
 UTF8
 EPRT
 IDLE
 MDTM
 SIZE
 MFMT
 REST STREAM
 MLST type*;size*;sizd*;modify*;UNIX.mode*;UNIX.uid*;UNIX.gid*;unique*;
 MLSD
 PRET
 AUTH TLS
 PBSZ
 PROT
 TVFS
 ESTA
 PASV
 EPSV
 SPSV
 ESTP
211 End.

Certificate:
    Data:
        Version: 3 (0x2)
        Serial Number:
            ab:fc:0e:62:8f:e4:fa:70
        Signature Algorithm: sha256WithRSAEncryption
        Issuer: C=CN, ST=Guangdong, L=Dongguan, O=BT-PANEL, OU=BT, CN=154.84.40.2/emailAddress=admin@bt.cn
        Validity
            Not Before: Feb 28 07:20:27 2025 GMT
            Not After : Nov 28 07:20:27 2034 GMT
        Subject: C=CN, ST=Guangdong, L=Dongguan, O=BT-PANEL, OU=BT, CN=154.84.40.2/emailAddress=admin@bt.cn
        Subject Public Key Info:
            Public Key Algorithm: rsaEncryption
                Public-Key: (1024 bit)
                Modulus:
                    00:bb:87:98:f9:9b:e7:25:b9:1f:69:5f:fc:c5:85:
                    07:c2:eb:2a:46:7f:62:de:a4:f3:5c:24:0f:16:b8:
                    6c:53:2b:e3:00:d8:3e:aa:de:b2:cf:3c:1c:ac:af:
                    46:e6:7a:10:3f:ca:9f:a4:d7:cd:d3:42:5f:7a:b0:
                    7c:39:a3:ed:48:b6:03:be:8f:cf:d9:e7:e3:b8:1b:
                    13:95:8e:54:e3:f5:6e:d4:b0:f8:1e:fc:74:e0:f8:
                    f7:9b:0f:da:12:e9:04:82:9f:8f:3f:b2:ee:24:c6:
                    6c:58:c3:fb:e0:60:d3:30:30:23:4e:b5:a2:b9:39:
                    50:14:af:a1:6b:3a:c7:b5:73
                Exponent: 65537 (0x10001)
        X509v3 extensions:
            X509v3 Subject Key Identifier: 
                95:B3:29:62:D6:53:66:33:35:6B:B5:1C:CE:70:59:5F:36:95:F0:22
            X509v3 Authority Key Identifier: 
                95:B3:29:62:D6:53:66:33:35:6B:B5:1C:CE:70:59:5F:36:95:F0:22
            X509v3 Basic Constraints: 
                CA:TRUE
    Signature Algorithm: sha256WithRSAEncryption
    Signature Value:
        a4:55:72:87:cd:f0:a1:ac:b2:bc:03:39:1d:93:08:1a:0d:a2:
        dc:f3:a9:df:07:a5:78:0b:29:b0:df:ab:81:b4:20:b2:25:a2:
        2b:ef:e8:8a:73:7c:57:80:eb:fb:35:0a:57:02:2f:d0:e0:55:
        13:a0:cb:aa:9e:86:17:22:88:e4:ca:0a:82:10:01:6b:db:66:
        8c:97:6d:97:a1:bb:3d:3d:d8:33:7b:df:c6:ae:36:c9:de:c9:
        63:0e:28:d4:6e:8a:e0:58:31:d1:a9:4e:8b:57:84:a2:1a:bc:
        86:24:4b:6d:c1:82:ca:5a:0b:0f:a4:fe:4d:59:c0:b4:8a:24:
        39:cd

nginx

HTTP/1.1 400 Bad Request
Server: nginx
Date: Sun, 16 Mar 2025 13:38:26 GMT
Content-Type: text/html
Content-Length: 552
Connection: close