Question : lftp warning returns different fingerprint then openssl s_client

[sebma]

Hi,

I'm comparing the FTP fingerprint between a OVH FTP server :

$ lftp ftpback-rbx1-234.mybackup.ovh.net <<< ls
ls: Fatal error: Certificate verification: Not trusted: no issuer was found (DD:12:B5:34:56:79:A1:23:45:6F:1C:D1:2E:BE:C7:2A:34:56:A1:DB)
$

and the one returned by openssl s_client :

$ openssl s_client -connect ftpback-rbx1-234.mybackup.ovh.net:21 -starttls ftp < /dev/null 2>/dev/null | openssl x509 -fingerprint -noout
SHA1 Fingerprint=01:23:4C:56:7A:89:C2:2C:3C:4E:B5:C6:78:9D:E0:12:34:56:7A:89
$

How is that possible ?