sudo adduser ftpuser
sudo nano /etc/ssh/sshd_config
DenyUsers ftpuser
sudo systemctl restart ssh
sudo mkdir -p /home/ftpuser/ftp
sudo chown nobody:nogroup /home/ftpuser/ftp
sudo chmod a-w /home/ftpuser/ftp
sudo usermod -aG www-data ftpuser
sudo mkdir /home/ftpuser/ftp/upload
sudo mount --bind /yetki_verilecek_klasor /home/ftpuser/ftp/upload
sudo chmod -R 775 /yetki_verilecek_klasor
sudo nano /etc/fstab
/yetki_verilecek_klasor /home/ftpuser/ftp/upload none bind 0 0
sudo nano /etc/vsftpd.conf
chroot_local_user=YES
allow_writeable_chroot=YES
write_enable=YES
local_umask=002
sudo chown ftpuser:ftpuser /home/ftpuser/ftp/upload
sudo systemctl restart vsftpd