If you want something more advanced... check this ;)
Auto login (hash) password
Defines an static and symmetrical password, used to create a hash and to make possible the automatic validation through URL. It is used to incorporate Pandora in other WEB application that gives it as parameter a user name and that using a hash generated by the user name. This password should allow the automatic validation in Pandora FMS, without needing to introduce a password. To see an example of this integration see the file /extras/sample_login.php from Pandora FMS console.