Any computer network needs a conductor ... It is the network administrator , who ensures its proper functioning: portrait of a profession that plays a vital role in business.

Computer Network Design
The first task for a network administrator to create a network architecture is to analyze the needs of users in terms of quality, speed, and security . Then, it must provide simultaneous access to the servers and the amount of data supported by the network, in order to select the hardware to install. The network manager thus has a very precise knowledge of all the elements of the network and the communication protocols used. He is also responsible for setting up and managing user accounts .
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From protection to technical support ...
To secure the computer system, the network administrator uses a whole arsenal; it sets up firewalls and passwords , defines security rules and creates alerts . It also supports the users: it trains them to the risks and assists them. It analyzes the origin of network malfunctions, and involves technicians in case of problems that it can not solve.

... and maintenance at the technology watch
The network administrator is really the guardian angel of a computer network; it continuously monitors its activity, anticipates ramp-ups , checks to see if new equipment is compatible , and plans to replace hardware. The maintenance of a network is therefore part of its missions. He is also responsible for the future of the network, thanks to the technology watch he performs: evolution of IEEE standards, appearance of new technical solutions and new tools, new features in network solutions ... nothing escapes him!

The skills of the network administrator
It goes without saying that a network administrator must know the LAN, WAN and MAN networks at their fingertips, as well as the languages they use. He masters communication protocols , network standards and operating systems, and the OSI model has no secrets for him. He must be rigorous and methodical , be able to work in a team and be able to interact with users to optimize their use of the network.

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