VSFTPD: virtual user with client private key authentication

[GabrieleMax]

It means mission impossible!

I'd like to use virtual users on VSFTPD, in my past I did it by PAM and everywhere people use it but I'd like to generate a private key from my client by openssl like what happen when I use ssh to connect with servers:

This is my config file:

Code: Select all

listen=NO
listen_ipv6=YES
local_enable=YES
write_enable=YES
local_umask=022
dirmessage_enable=YES
use_localtime=YES
xferlog_enable=YES
connect_from_port_20=YES
secure_chroot_dir=/var/run/vsftpd/empty
pam_service_name=vsftpd
rsa_cert_file=/etc/ssl/private/certificato.pem
rsa_private_key_file=/etc/ssl/private/vsftpd_pvtkey.pem
ssl_enable=YES
allow_anon_ssl=NO
force_local_data_ssl=YES
force_local_logins_ssl=YES
ssl_tlsv1=YES
require_ssl_reuse=NO
ssl_ciphers=ECDHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-AES128-GCM-SHA256
chroot_local_user=YES
hide_ids=YES
debug_ssl=YES
guest_enable=YES
guest_username=virtual
user_sub_token=$USER
local_root=/home/ftp/$USER
user_config_dir=/etc/vsftpd/vsftpd_user_conf

This is /var/log/vsftpd.log when I try to connect from the client to the server:

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[pid 6732] CONNECT: Client "::ffff:192.168.73.35"
[pid 6732] DEBUG: Client "::ffff:192.168.73.35", "SSL version: TLSv1.3, SSL cipher: TLS_AES_256_GCM_SHA384, not reused, no cert"
[pid 6731] [test01] FAIL LOGIN: Client "::ffff:192.168.73.35"
[pid 6732] DEBUG: Client "::ffff:192.168.73.35", "Control connection terminated without SSL shutdown."

SSL server certificate is ok because when I start the ftp client I can read it and I must confirm it, after this I need to insert a password but in the client SSL key I didn't insert it... maybe I could imported this certificate in the wrong area of the sftpd server... btw I don't know if SFTPD works in this way!

Regards.
GabrieleMax