Default ntopng user is "admin" with password "admin". It is possible to provide ntopng a list of users credentials in a text file with the format: user.utente.password=5f4dcc3b5aa765d61d8327deb882cf99 user.utente.full_name=Nuovo Utente user.utente.group=administrator The md5 sum of the password has to be provided. In the same way it is possible to overwrite the default "admin" password. Users can be added/deleted also from the web gui. Changes are written back to the users file, if any. It is also possible to add an user via Redis using the command: redis-cli SET user.<username>.password <password md5> Example of adding a user "utente" with password "password": $ echo -n "password" | md5 5f4dcc3b5aa765d61d8327deb882cf99 $ redis-cli SET user.utente.password 5f4dcc3b5aa765d61d8327deb882cf99 It is possible to list all users via Redis using: $ redis-cli KEYS user* 1) "user.admin.password" 2) "user.utente.password"