ftpscan archive: compilenix.org/ftpscan/archive/
220 Welcome friend 331 Please specify the password.151.217.97.12
220-FileZilla Server 1.8.2 220 Please visit https://filezilla-project.org/151.217.84.14
220 AXIS 560 FTP Network Print Server V6.00 Jul 7 1999 ready.151.217.80.139
220 ProFTPD Server ready.151.217.75.144
220 ZBR-79071 Version V84.20.23Z ready.151.217.73.14
220 MikroTik FTP server (MikroTik 7.16.2) ready 331 Password required for anonymous151.217.62.63
220 Happy hacking everyone! ;) (powered by unFTP) 331 Password Required 530 Please authenticate 530 Please authenticate 221 Bye!151.217.62.78
220 MikroTik FTP server (MikroTik 7.8) ready 331 Password required for anonymous151.217.62.87
220 (vsFTPd 3.0.3)151.217.62.42
220 Welcome to Rclone v1.68.2 FTP Server151.217.62.41
220 (vsFTPd 3.0.3)151.217.62.54
220 ProFTPD Server (20tb finest stuff with 10gbits) [151.217.62.54]151.217.62.55
220 ProFTPD Server (20tb finest stuff with 10gbits) [151.217.62.55]151.217.62.48
220 ProFTPD Server (20tb finest stuff with 10gbits) [151.217.62.48]151.217.62.36
220 ProFTPD Server (HYDE) [::ffff:151.217.62.36]151.217.62.37
220 ProFTPD Server (Debian) [::ffff:151.217.62.37]151.217.62.49
220 ProFTPD Server (purr) [::ffff:151.217.62.49]151.217.62.28
220 (vsFTPd 3.0.3)151.217.62.16
220 (vsFTPd 3.0.3) 331 Please specify the password.151.217.60.15
220 ProFTPD Server (PurpleTentacle) [::ffff:151.217.60.15]151.217.16.139
220 (vsFTPd 3.0.3) 331 Please specify the password.151.217.15.75
220---------- Welcome to Pure-FTPd [privsep] [TLS] ---------- 220-You are user number 46 of 200 allowed. 220-Local time is now 15:02. Server port: 21. 220-IPv6 connections are also welcome on this server. 220 You will be disconnected after 2 minutes of inactivity.151.217.5.20
220 MikroTik FTP server (MikroTik 7.16.1) ready151.217.4.17
220 (vsFTPd 3.0.5)151.217.2.144
220 MikroTik Pixelflut FTP server (MikroTik 7.16.2) ready151.217.1.16
220-Microsoft FTP Service 220 this server runs windows server 2012 btw