Utilizzare utenti virtuali in vsftpd
vsftpd is a secure, fast and stable FTP server. In this tutorial we'll install the server and make it check in a flat text file for virtual users allowed to login.
1. Install required packages
apt-get install vsftpd libpam-pwdfile
2. Configure vsftpd (pico /etc/vsftpd.conf)
Edit these variables in the config file and leave everything else with the default value.
anonymous_enable=NO local_enable=YES write_enable=YES local_umask=022 nopriv_user=vsftpd virtual_use_local_privs=YES guest_enable=YES user_sub_token=$USER local_root=/var/www/$USER chroot_local_user=YES hide_ids=YES guest_username=vsftpd
Set the local_root to the parent directory where the user's home directories are located
3. Configure PAM to check the passwd file for users (pico /etc/pam.d/vsftpd)
auth required pam_pwdfile.so pwdfile /etc/ftpd.passwd account required pam_permit.so
Make sure you remove everything else from the file
4. Create the passwd file containing the users
htpasswd -c /etc/ftpd.passwd user1
You can later add additional users to the file like this:
htpasswd /etc/ftpd.passwd user2
5. Create a local user that’s used by the virtual users to authenticate
useradd --home /home/vsftpd --gid nogroup -m --shell /bin/false vsftpd
6. Restart vsftpd
/etc/init.d/vsftpd restart
7. Create user's home directory since vsftpd doesn't do it automatically
mkdir /var/www/user1 chown vsftpd:nogroup /var/www/user1