What is the first guarantee of data security?

First of all, the first guarantee of data security is the security of the network system.

What is a network system?

Network system, the full name of network operating system, is a term used to represent two quite different concepts: a special operating system running on routers, network switches, and firewalls;

A An operating system for computer networks that allows multiple computers in the network to access shared files and printers, allowing sharing of data, users, groups, security, applications, and other network functions. Usually deployed on a local area network or private network. Since general-purpose operating systems now include many features, this statement is a thing of the past.

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At present, there are mainly the following types of network operating systems in the local area network:

Windows class

Microsoft's Windows system not only has an absolute advantage in personal operating systems, it also has very strong power in network operating systems. This type of operating system configuration is the most common in the entire LAN configuration. However, because it has higher hardware requirements for servers and is not very stable, Microsoft's network operating system is generally only used in mid- to low-end servers and high-end servers. Usually non-Windows operating systems such as UNIX, LINUX or Solairs are used.

NetWare class

Although the NETWARE operating system is far less popular than it was in the early years, and has long lost its dominance in the local area network, the NetWare operating system still has relatively high requirements for network hardware. It is low-cost (the workstation only needs to be a 286 machine) and is favored by some small and medium-sized enterprises with relatively backward equipment, especially schools.

Unix system

The currently commonly used UNIX system versions mainly include: Unix SUR4.0, HP-UX 11.0, SUN's Solaris8.0, etc. It supports network file system services and provides data and other applications. It is powerful and launched by AT&T and SCO.

Linux

This is a new type of network operating system. Its biggest feature is that the source code is open and many applications can be obtained for free. There are also Chinese versions of Linux, such as REDHAT (Red Hat), Red Flag Linux, etc.

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