Pure-FTPd

220---------- Welcome to Pure-FTPd [privsep] [TLS] ----------
220-You are user number 1 of 50 allowed.
220-Local time is now 20:27. 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:
            c9:98:d3:ec:f7:b4:d5:6f
        Signature Algorithm: sha256WithRSAEncryption
        Issuer: C=CN, ST=Guangdong, L=Dongguan, O=BT-PANEL, OU=BT, CN=38.34.172.136/emailAddress=admin@bt.cn
        Validity
            Not Before: Mar  6 08:59:46 2025 GMT
            Not After : Dec  4 08:59:46 2034 GMT
        Subject: C=CN, ST=Guangdong, L=Dongguan, O=BT-PANEL, OU=BT, CN=38.34.172.136/emailAddress=admin@bt.cn
        Subject Public Key Info:
            Public Key Algorithm: rsaEncryption
                Public-Key: (1024 bit)
                Modulus:
                    00:a5:86:b6:8d:74:3c:5b:a8:e4:60:f0:fb:d2:d4:
                    35:61:6e:bc:bf:2d:97:25:d4:cd:65:ea:92:8e:de:
                    b0:c2:e2:56:3c:21:b6:2e:16:e0:3e:a1:42:f1:9f:
                    95:ff:48:7a:06:7d:a1:db:84:68:9a:9d:27:d4:a9:
                    7c:07:00:ca:5b:5f:6d:bc:3f:e0:63:1f:e5:37:38:
                    ab:79:9c:6f:29:29:1b:09:76:03:35:cd:16:db:0a:
                    37:23:af:18:24:04:9c:5e:be:89:b9:9d:87:8d:d7:
                    06:4e:d2:cd:04:67:b5:06:bc:eb:cc:3a:65:2e:ae:
                    a0:57:94:86:47:00:57:3b:a3
                Exponent: 65537 (0x10001)
        X509v3 extensions:
            X509v3 Subject Key Identifier: 
                F3:89:23:4D:7A:EC:4A:64:BA:CE:C8:FF:3E:A3:A5:31:27:7E:27:15
            X509v3 Authority Key Identifier: 
                F3:89:23:4D:7A:EC:4A:64:BA:CE:C8:FF:3E:A3:A5:31:27:7E:27:15
            X509v3 Basic Constraints: 
                CA:TRUE
    Signature Algorithm: sha256WithRSAEncryption
    Signature Value:
        11:4a:33:4e:77:43:6e:74:2b:6d:76:64:91:1a:b1:cc:fb:65:
        c0:84:6c:d7:e9:83:d0:b7:d0:ed:c5:de:95:08:80:6f:6e:bd:
        c2:9b:10:97:72:d8:c7:30:d0:fa:c1:b9:c1:f6:14:3f:5a:5a:
        77:a0:fb:4f:0e:bc:5d:47:e7:02:35:34:b8:33:a8:ff:dd:cf:
        fe:0b:da:ba:96:14:a0:7f:d6:81:8d:ce:30:c6:9a:e9:68:a4:
        0b:af:60:2c:df:2b:c0:94:5b:01:cf:3e:bf:2f:69:a9:0d:b7:
        27:24:38:2b:43:c5:39:e1:92:9a:f0:3d:0c:6a:aa:de:ab:e6:
        30:da

421 Server busy, too many connections

nginx

HTTP/1.1 200 OK
Server: nginx
Date: Fri, 07 Mar 2025 10:53:24 GMT
Content-Type: text/html
Content-Length: 138
Last-Modified: Thu, 06 Mar 2025 09:03:38 GMT
Connection: keep-alive
ETag: "67c964ea-8a"
Accept-Ranges: bytes