<IfModule mod_sftp.c>
  SFTPEngine on
  Port 2222
  SFTPLog /var/log/proftpd/sftp.log
  SFTPHostKey /etc/ssh/ssh_host_rsa_key
  SFTPHostKey /etc/ssh/ssh_host_dsa_key
  SFTPAuthMethods publickey
  SFTPAuthorizedUserKeys file:/etc/proftpd/authorized_keys/%u
  SFTPCompression delayed
</IfModule>
