One of the first things we should do when we put a Joomla site into production is hide access to the administrator .
Nobody should access the /administrator folder of your website , neither curious, nor robots nor of course hackers. It is necessary to hide that folder for safety and also for a bit of modesty.
The installation is like any other plugin , you install from the extensions installer and then from the plugins section you access to configure and publish it.
It is extremely simple, you just have to configure three parameters, key, value and redirection :
Key will be the name of the variable and value its required value.
Redirect path , it will be to the place where we will redirect the user if he does not enter the required URL, which will be: (your site)/administrator?Key=value