#/etc/proftpd/sftp.conf

<IfModule mod_sftp.c>
  <VirtualHost 0.0.0.0>
        SFTPEngine ON
        Port 60022
        SFTPHostKey /etc/proftpd/ssh/ssh_host_rsa_key
        SFTPHostKey /etc/proftpd/ssh/ssh_host_ecdsa_key
        SFTPLog /var/log/proftpd/sftp.log
        SFTPCompression delayed

        # Auth methods
        SFTPPAMEngine off
        #SFTPAuthMethods    publickey password
        #SFTPAuthorizedUserKeys  file:/etc/proftpd/ssh/authorized_keys/%u
        #UseReverseDNS off

#K ->
        ##Virtual user su file
        #Makes it easier to create virtual users
        RequireValidShell off

        #Use alternative password and group file (passwd uses crypt format)
        AuthOrder mod_auth_file.c
        AuthUserFile "/etc/proftpd/ftpd.passwd"
        AuthGroupFile "/etc/proftpd/ftpd.group"

        #uid e gid
        DirFakeUser on ~
        DirFakeGroup on ~

        # you may not like the bandwidth control below
        # TransferRate RETR|STOR|APPE|STOU KBrate:freebytes
        #TransferRate RETR 20:0


        #Chroot everyone
        DefaultRoot ~
#<- K

  </VirtualHost>
</IfModule>



-------------------
iptables -I INPUT -p tcp --match multiport -d port 49152:65535 -j ACCEPT
		  
Feb 12 13:09:35 serverftp proftpd[17589]: 2021-02-12 13:09:35,489 serverftp proftpd[17596] 10.1.1.111: mod_sftp/1.0.0: error reading passphrase for SFTPHostKey '/etc/ssh/ssh_host_rsa_key': (unknown)
Feb 12 13:09:35 serverftp proftpd[17589]: 2021-02-12 13:09:35,489 serverftp proftpd[17596] 10.1.1.111: mod_sftp/1.0.0: unable to use key in SFTPHostKey '/etc/ssh/ssh_host_rsa_key', exiting
Feb 12 13:09:35 serverftp proftpd[17589]: .
Feb 12 13:09:35 serverftp systemd[1]: Started LSB: Starts ProFTPD daemon.


https://forum.virtualmin.com/t/proftpd-issue-on-debian-10-error-reading-passphrase-for-sftphostkey/104835/2


https://www.yoctobe.com/linux/configure-proftpd-to-use-sftp/
https://linuxadmin.io/configure-proftpd-sftp-centos/
https://www.mybluelinux.com/proftpd-server-with-virtual-users-and-in-sftp-mode/


 <IfModule mod_sftp.c>
  SFTPEngine ON
  Port 60022
  SFTPHostKey /etc/proftpd/ssh/ssh_host_rsa_key
  SFTPHostKey /etc/proftpd/ssh/ssh_host_ecdsa_key
  SFTPLog /var/log/proftpd/sftp.log
  SFTPCompression delayed

# Auth methods
SFTPPAMEngine off
#SFTPAuthMethods    publickey password
#SFTPAuthorizedUserKeys  file:/etc/proftpd/authorized_keys/%u


#Opzioni di default gia in proftpd.conf
 # DefaultRoot ~
 # RequireValidShell off
 # AuthUserFile /etc/proftpd/ftpd.passwd
 # AuthGroupFile /etc/proftpd/ftpd.group
 # AuthOrder mod_auth_file.c
 # UseReverseDNS off
 </IfModule>

 
 
 
#K ->
##Virtual user su file
#Makes it easier to create virtual users
RequireValidShell off

#Use alternative password and group file (passwd uses crypt format)
#AuthOrder mod_auth_file.c   #vedi sopra
AuthUserFile "/etc/proftpd/ftpd.passwd"
AuthGroupFile "/etc/proftpd/ftpd.group"

#uid e gid
DirFakeUser on ~
DirFakeGroup on ~

# you may not like the bandwidth control below
# TransferRate RETR|STOR|APPE|STOU KBrate:freebytes
#TransferRate RETR 20:0


#Chroot everyone
DefaultRoot ~
#<- K