wiki: Debian Edu (bullseye)
DebianEdu/Documentation/Bullseye - Debian Wiki
Debian Edu aka Skolelinux is a #Linux distribution based on #Debian providing an out-of-the box environment of a completely configured school network. It implements a client-server approach. Servers and clients are pieces of software that interact with one another.
Servers provide information required by clients to function. When a server is installed on one machine and its client on a different machine, the machines themselves are referred to as the server and the client, by extension of the concept.