For each domain set in the domain.cf file, you set the configuration variable passwd to a comma-delimited list of authentication options. Each option must be the pathname to a NcFTPd password database created by ncftpd_passwd, or regular authentication, denoted by using the option named /etc/passwd.

You may specify more than one option, which means that NcFTPd will try them in sequence until authentication succeeds or the list is exhaused.

Examples:

Allow only users listed in /etc/passwd:

passwd=/etc/passwd
 

Check for users in the /etc/passwd first, and if not in there, try a NcFTPd password database named /usr/local/etc/ncftpd/pwdb/virt.db:

passwd=/etc/passwd,/usr/local/etc/ncftpd/pwdb/virt.db
 

Check /usr/local/etc/ncftpd/pwdb/virt.db only:

passwd=/usr/local/etc/ncftpd/pwdb/virt.db
 

Check /usr/local/etc/ncftpd/pwdb/virt1.db first, then /etc/passwd, then another database named /usr/local/etc/ncftpd/virt2.db:

passwd=/usr/local/etc/ncftpd/pwdb/virt1.db,/etc/passwd,/usr/local/etc/ncftpd/pwdb/virt2.db