While blocking certain websites such as YouTube, Facebook, Instagram, etc., will be limited by the layer 7 protocol method which results in blocked sites. The distribution of internet bandwidth for students is a maximum of 1024kbps and has an average speed of 700-1024kbps. By using layer 7 protocol method and Address List as a means of limiting access to certain websites as well as Ubuntu Linux as a centralized server facility with the addition of hotspot management as a means of wireless internet connection for students with a personal authentication system without using a conventional password results in a local server domain controller which cannot be accessed by parties outside the network itself. While the absence of website limitations that cannot be accessed at certain hours such as productive learning hours can reduce student learning focus because the bandwidth management manages the distribution of internet connection speeds evenly on each client. With a centralized server, the user makes it easy to store files without fear of being swapped by other users.

Primary Domain Controller as centralized storage for each client with a login system for each user provides an alternative centralized personal storage with the resources provided by the server.

There are no shared storage that is centralized in the server requires students to store their files into extended storage such as a flash drive.

Mikrotik address list