How to enable bandwidth control, the number of connections and resources limits for domains in Plesk?

Question

How to enable bandwidth control, the number of connections and resources limits for domains?

Answer

1. Log in to Plesk.

2. Go to Tools & Settings > Updates and Upgrades > Add/Update Components and install Resource Controller (Cgroups) component.

3. Customize resources limitation for domains in Service Plans > example_plan > RAM, CPU, Disk I/O tab.