Install gkrellmd by entering the following commands in the terminal:
sudo apt update sudo apt install gkrellmd
Description:
GNU Krell Monitors Server
Gkrellmd Listens for connections from gkrellm clients. When a gkrellm client connects to a gkrellmd server all builtin monitors collect their data from the server.
Homepage: http://gkrellm.net/
Version: 2.3.10-1
Section: universe/x11