Pure-FTPd

220---------- Welcome to Pure-FTPd [privsep] [TLS] ----------
220-You are user number 1 of 50 allowed.
220-Local time is now 06:47. 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:
            dd:ce:2f:18:3c:d3:ca:e2
        Signature Algorithm: sha256WithRSAEncryption
        Issuer: C=CN, ST=Guangdong, L=Dongguan, O=BT-PANEL, OU=BT, CN=206.119.72.53/emailAddress=admin@bt.cn
        Validity
            Not Before: Feb 18 07:03:49 2025 GMT
            Not After : Nov 18 07:03:49 2034 GMT
        Subject: C=CN, ST=Guangdong, L=Dongguan, O=BT-PANEL, OU=BT, CN=206.119.72.53/emailAddress=admin@bt.cn
        Subject Public Key Info:
            Public Key Algorithm: rsaEncryption
                Public-Key: (1024 bit)
                Modulus:
                    00:da:60:ff:d5:21:ae:28:b8:b2:c0:a4:8f:76:58:
                    d0:06:28:c0:9e:02:52:cd:ee:ab:1e:29:25:51:79:
                    28:fa:cb:23:be:12:5a:75:59:42:1a:a7:90:78:97:
                    2a:e5:d7:ff:7f:21:08:29:34:08:96:98:fd:18:cb:
                    de:5a:f3:c3:d7:90:93:43:c3:80:4e:4c:83:e2:7f:
                    bf:bf:d9:56:e7:68:48:6f:48:c1:cb:19:26:5c:12:
                    58:48:59:02:6d:43:c3:68:eb:a1:d9:14:f4:0c:1d:
                    3e:18:85:3a:37:09:f8:50:ea:b2:38:21:c1:21:f3:
                    56:11:c8:01:46:77:30:aa:f3
                Exponent: 65537 (0x10001)
        X509v3 extensions:
            X509v3 Subject Key Identifier: 
                44:E8:CD:C6:D6:B3:B1:58:1B:09:87:82:A7:EA:1D:1D:C4:3A:8E:66
            X509v3 Authority Key Identifier: 
                44:E8:CD:C6:D6:B3:B1:58:1B:09:87:82:A7:EA:1D:1D:C4:3A:8E:66
            X509v3 Basic Constraints: 
                CA:TRUE
    Signature Algorithm: sha256WithRSAEncryption
    Signature Value:
        53:f1:0e:f0:dd:43:f6:11:cf:cd:56:34:18:b1:87:24:5d:dc:
        c5:23:dd:db:67:56:c2:d2:47:c9:9f:d0:ad:03:36:9b:da:86:
        9b:59:bb:77:56:4d:50:f6:55:2c:ab:6e:90:64:5e:d8:f7:e6:
        c0:cd:9f:96:73:15:af:41:f6:ee:64:6d:96:6a:7e:cb:ea:13:
        63:0f:7f:17:50:c5:23:45:5d:fe:af:97:5b:1a:11:18:b8:bc:
        55:6a:06:99:f4:cd:15:7b:8c:01:94:d1:0b:74:43:b6:e9:20:
        89:ab:15:49:1e:35:b7:e3:da:bc:67:f2:41:36:cb:0a:55:06:
        02:f2

nginx

HTTP/1.1 400 Bad Request
Server: nginx
Date: Mon, 24 Mar 2025 20:09:47 GMT
Content-Type: text/html
Content-Length: 552
Connection: close