ProFTPD

220 183.111.100.237 FTP server ready
530 Login incorrect.
214-The following commands are recognized (* =>'s unimplemented):
 CWD     XCWD    CDUP    XCUP    SMNT*   QUIT    PORT    PASV    
 EPRT    EPSV    ALLO*   RNFR    RNTO    DELE    MDTM    RMD     
 XRMD    MKD     XMKD    PWD     XPWD    SIZE    SYST    HELP    
 NOOP    FEAT    OPTS    HOST    CLNT    AUTH*   CCC*    CONF*   
 ENC*    MIC*    PBSZ*   PROT*   TYPE    STRU    MODE    RETR    
 STOR    STOU    APPE    REST    ABOR    USER    PASS    ACCT*   
 REIN*   LIST    NLST    STAT    SITE    MLSD    MLST    
214 Direct comments to root@localhost
211-Features:
 CLNT
 EPRT
 EPSV
 HOST
 LANG en-US*;ko-KR
 MDTM
 REST STREAM
 SIZE
 UTF8
211 End

220 uws8-wpm-078.cafe24.com ESMTP
250-uws8-wpm-078.cafe24.com
250-PIPELINING
250-8BITMIME
250-SIZE 0
250 AUTH LOGIN PLAIN CRAM-MD5

OpenResty

HTTP/1.1 403 Forbidden
Server: openresty
Date: Sun, 09 Feb 2025 21:53:11 GMT
Content-Type: text/html; charset=iso-8859-1
Content-Length: 199
Connection: keep-alive

OpenResty

HTTP/1.1 400 Bad Request
Server: openresty
Date: Sun, 09 Feb 2025 20:01:13 GMT
Content-Type: text/html
Content-Length: 654
Connection: close

220 uws8-wpm-078.cafe24.com ESMTP
250-uws8-wpm-078.cafe24.com
250-PIPELINING
250-8BITMIME
250-SIZE 0
250 AUTH LOGIN PLAIN CRAM-MD5

MariaDB

MariaDB:
  Error Message: Host '224.149.4.68' is not allowed to connect to this MariaDB server
  Error Code: 1130