I ask for help in explaining how to organize a local network with a security class of 1G?

Question

Fstack

Please tell me how to organize a local network with a security class of 1G?

Answer 1

Switches L2 and L3 + router, an operating system with the ability to monitor actions or special software for this, a domain, print servers, printers with access by email.
In general, there is a document https://fstec.ru/component/attachments/download/296
where it is written what should be controlled. You need to control traffic between hosts - you put each one in a separate VLAN, you can also bind the MacAddress to ports and drive it through the router.