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					The NAS server is a server for storing data of users of a network. This type of server has several
features that facilitate the management of space allocated to users.

                                 Presentation of NAS
NAS or Network Attached Storage is a standalone server whose primary role is to host user data to a
computer network. These can then access and edit their files on the server from their workstation.
The structure of a NAS resembles that of a PC, that is to say it comprises a processor, memory, a
cooler and an operating system. The data is stored on a hard drive formatted in FAT 32, which allows
the NAS server to run on all operating systems. This feature is ideal for a heterogeneous fleet.
Configuring a NAS server is done through a web interface in which it is possible to specify particular
IP address and the server name, but also to manage access rights and users. In addition, this device
also has a service for http and ftp access from the Internet. As part of the network, the NAS uses TCP
/ IP to match with other machines.

                         The functionality of the NAS
The main function of the NAS is file storage users. To do this, the server has many features for
managing access rights and users. For example, files can be opened by a single user or a group of
users, depending on the IT strategy adopted. Data sharing is also possible on the NAS. In addition,
authentication when accessing data may be associated with the account of the user domain. The NAS
also ensures the integrity and security of the information it stores. To this end, a privacy policy is
applied so that users access only to files that are permitted. This partitioning is particularly
interesting because it optimizes storage resources. Thus, it is for example possible to centralize the
operating systems on the NAS users to reduce maintenance costs. Also at the level of data security,
the NAS has a backup system architecture with Raid 1 or Raid 5 disks. Raid is replicating data across
multiple disks in order to recover all the information in case of a crash of one of the discs.

                                 The benefits of NAS
Centralization provided by the NAS provides a time saving and saving considerable resources. Indeed,
it can more easily manage user data, but also to protect and save. Choosing a NAS is also wiser to
reduce costs. In fact, the server disk space is used correctly, unlike computers where some portion of
the hard disk is often wasted. It is for this reason that NAS servers are equipped with very large disks.
Disk capacity can be expanded without having to manipulate the client machines. Finally, the NAS is
very economical in terms of energy consumption. For users, the NAS offers the opportunity to work
and collaborate more easily on remote files. All customers of a computer access in effect a single
storage entity and this system is also accessible from the Internet.

                         Additional services on a NAS
The NAS is not only for the corporate environment as individuals can also adopt. This technology is
especially popular to work remotely, for example from home. The NAS can be accessed eg from
home if it is on. To do this, you need an Internet connection and set up a virtual private network
(VPN). 24h/24 lit a NAS can also serve web server. Indeed, the most elaborate models interpreters
Html, Php and MySql. Finally, the NAS also includes media server functionality. Users can play video,
audio and images located on the server from their game console or DVD player.

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