Administration groups: Introduction

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## 1. Introduction

An admin group is a set of machines which are sharing some config files or some parts of some config files. In Linuxconf parlance, they are sharing some sub-systems. The concept of sub-system is the same used for the "system profile versionning" feature.

## 1.1 Definition of a sub-system

A sub-system represents a set of logically tied configuration files. In some cases, a sub-system is made of only parts of a configuration file.

Seen differently, every configuration files known to Linuxconf belong to at least one sub-system. In some case, a configuration is splitted logically into more than one sub-system. This is the case for /etc/fstab which belong to the hardware and the netclient sub-systems.

This ability to distribute logically one configuration file into various sub-systems is the key to sharing. For example, many machines on a net may share the NFS client part of /etc/fstab but can't share the rest as it is hardware dependent (partition layout, swap partitions, etc).

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