The data from each machine on the network is copied to another machine as a backup. If a server is involved, then the data is copied to the server and stored on its HDDs. This is a good way to backup all the data on a SOHO business network as only the data on the server need be backed up. This article has now covered a primer for making data available and reliable in one s local computer or SOHO network. Notice that we have not addressed the element of security directly at all yet.
Security involves restricting the data on the local computer to authorized use.
Security is really all of the above plus adding restrictions to keep the data intact and ready to use. Restrictions start by including identification and passwords for use of the machine and the data contained therein. A user ID and password are the two basic functions of data security. Security capable network operating systems all contain these basic functions. Network access is then regulated in one of three ways, Read-Only, Full, or Depends on Password.