Pure-FTPd

220---------- Welcome to Pure-FTPd [privsep] [TLS] ----------
220-You are user number 1 of 50 allowed.
220-Local time is now 19:44. 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:
            91:68:54:9f:4b:9c:3a:b6
        Signature Algorithm: sha256WithRSAEncryption
        Issuer: C=CN, ST=Guangdong, L=Dongguan, O=BT-PANEL, OU=BT, CN=107.148.72.91/emailAddress=admin@bt.cn
        Validity
            Not Before: Mar 20 21:19:27 2025 GMT
            Not After : Dec 18 21:19:27 2034 GMT
        Subject: C=CN, ST=Guangdong, L=Dongguan, O=BT-PANEL, OU=BT, CN=107.148.72.91/emailAddress=admin@bt.cn
        Subject Public Key Info:
            Public Key Algorithm: rsaEncryption
                Public-Key: (1024 bit)
                Modulus:
                    00:d1:4b:60:b3:5f:3f:28:8b:c9:73:9a:3b:0a:c5:
                    39:ed:3e:00:6f:c9:7a:aa:54:2f:99:d6:e6:91:37:
                    0f:2c:c3:c2:a0:f5:e5:df:8b:1d:26:a3:74:ca:65:
                    f1:eb:54:bf:9a:48:c5:e1:28:51:3e:38:86:27:07:
                    69:8e:77:5f:c8:38:0b:fb:a7:6a:0b:f0:19:0d:d5:
                    3e:2c:66:b2:c8:17:e0:6f:bd:59:d5:6d:8d:1b:22:
                    a2:d1:19:77:e9:81:d8:e6:ba:ea:6b:62:de:05:99:
                    3d:aa:0a:24:82:35:a5:36:15:93:74:51:30:49:64:
                    b7:d5:4e:59:63:6d:d0:28:2b
                Exponent: 65537 (0x10001)
        X509v3 extensions:
            X509v3 Subject Key Identifier: 
                59:6B:0B:2C:60:C6:A6:94:26:8B:8C:5B:C1:E4:14:6D:43:64:B7:58
            X509v3 Authority Key Identifier: 
                59:6B:0B:2C:60:C6:A6:94:26:8B:8C:5B:C1:E4:14:6D:43:64:B7:58
            X509v3 Basic Constraints: 
                CA:TRUE
    Signature Algorithm: sha256WithRSAEncryption
    Signature Value:
        05:3d:71:ff:9f:4b:ec:50:b4:d7:91:ee:30:39:1b:db:d3:30:
        45:75:fb:e5:d3:f4:46:b5:7e:55:b8:1c:a4:e0:d2:8e:2e:3e:
        c8:f0:90:c6:29:90:0c:a3:1f:7d:a1:ef:83:35:f6:8f:a0:31:
        60:53:b8:1a:02:70:11:ce:a9:db:be:c4:2f:82:47:4c:34:70:
        d6:22:ec:bc:9c:35:7f:da:18:62:3c:c5:34:ed:6f:aa:ae:f7:
        5d:a9:42:98:84:45:ca:c2:33:b3:39:2e:67:9d:d0:66:88:55:
        de:53:e1:a4:d6:87:b2:f1:db:f5:14:d5:fb:0a:b2:93:d9:64:
        16:d6

nginx

HTTP/1.1 400 Bad Request
Server: nginx
Date: Mon, 24 Mar 2025 12:42:28 GMT
Content-Type: text/html
Content-Length: 552
Connection: close