ftpscan archive: compilenix.org/ftpscan/archive/
220 (vsFTPd 3.0.3)151.217.55.27
220 FRITZ!BoxFonWLAN7270v2 FTP server ready.151.217.47.43
220 sperrmuell 331 Please specify the password.151.217.47.61
220 ProFTPD 1.3.5b Server (Debian) [::ffff:151.217.47.61]151.217.40.54
220 MikroTik FTP server (MikroTik 6.40.4) ready151.217.40.59
220 ProFTPD Server (taiyaki FTP Server) [::ffff:151.217.40.59]151.217.40.48
220 ProFTPD 1.3.4a Server (Debian) [::ffff:151.217.40.48]151.217.40.46
220 ProFTPD 1.3.4a Server (Debian) [::ffff:151.217.40.46]151.217.35.24
220 ProFTPD Server (c2is_34c3.local FTP Server) [::ffff:151.217.35.24]