Network administration

What network administration is and why it matters

When an office printer suddenly stops printing, when Wi-Fi in a school classroom drops every few minutes, or when a new employee cannot log into the shared folder, someone has to find the cause and fix it. That someone is the network administrator. Network administration is the work of designing, configuring and maintaining the computer networks that connect people, devices and services inside an organization.

Almost every organization today depends on a network: a clinic’s patient records, a shop’s cash registers, a library’s computers, an office’s email and shared files. If the network is slow or unreliable, work stops. That is why people who can set up a network properly, keep it running and quickly sort out faults are needed far beyond IT companies.

What you will learn and do in class

The program lasts 4 months and consists of 36 lessons, starting from beginner level. Classes run on real equipment and in a virtual environment. Every participant builds and configures their own network lab. You will work with Windows Server, Linux, Cisco Packet Tracer and VirtualBox.

Network fundamentals. You begin with the OSI model and TCP/IP so that you understand what actually happens when one computer sends data to another. You then practice IP addressing and routing: dividing an address range into subnets, assigning addresses to devices and checking that packets reach their destination. You also compare wired and wireless networks and learn when each fits best. A typical exercise is to draw a small office network on paper and then build it in Cisco Packet Tracer.

Configuring equipment. In this module you configure routers and switches step by step, set up VLANs and segment the network so that, for example, guests and staff are kept apart. You also build a Wi-Fi network: choose settings, protect access with a strong password and check coverage and stability.

Server administration. You install and explore Windows Server basics and Linux server basics in VirtualBox. You create users and groups, assign permissions to shared folders and see how one server can serve a whole team. Exercises here mirror everyday office tasks: adding a new employee, giving access to a department folder and removing access when someone leaves.

Security and troubleshooting. The final module covers firewall configuration and backups: you set rules that allow only the necessary traffic and practice restoring data from a backup copy. A large part of the module is hands-on fault diagnosis: the lab is deliberately broken, and you use a step-by-step method to find and fix the problem.

A typical working day of a network administrator

A network administrator’s day usually mixes planned work with unexpected requests. In the morning they may check that servers, switches and the internet connection are working normally and that last night’s backups finished successfully. Then come requests from colleagues: a laptop will not connect to Wi-Fi, a new staff member needs an account, a department needs access to a shared folder.

Planned tasks fill the rest of the day: installing updates, adding a new switch to an office, documenting the network layout, reviewing firewall rules or replacing an old cable. When a fault occurs, the administrator works methodically: checks the physical connection first, then addresses and settings, then the services themselves. Patience, careful notes and clear explanations to non-technical colleagues are as important as technical knowledge.

Where these skills are used and what comes next

These skills apply wherever there is more than a handful of computers: offices, schools, clinics, shops, government bodies and internet service providers. Typical entry points include IT support specialist, junior network or system administrator, or the person responsible for computers and the network in a small organization. By the end of the program you will have enough skill to administer the network of a small organization on your own.

Natural next steps after the course are to deepen your knowledge of routing and switching, prepare for recognized entry-level international certifications in networking, learn more about Linux administration, or move towards cybersecurity. Further growth depends on continued practice and your own initiative.

How to prepare before the course starts

A few free steps will make the first weeks easier:

• Look at your home router’s settings page and note which devices are connected and what addresses they have.
• On your computer, try the ipconfig (Windows) or ip a (Linux) command and see what it shows.
• Install Cisco Packet Tracer and VirtualBox in advance and get used to their interfaces.
• Learn common English networking terms such as router, switch, gateway and subnet.
• Keep a notebook for commands and settings; this habit is valuable in any administrator’s work.

Short daily practice is more effective than long sessions once a week.

Frequently asked questions

Is the program free? Yes. All programs of the association are free.

Who can apply and what documents are needed? The program is open to everyone aged 16 and over. To apply, you only need your name and phone number. After admission you may be asked for a copy of your passport so that the certificate can be issued. Our specialists will call you back within 1–2 working days.

Are classes held in person or online? Depending on the group schedule, classes run offline in the association’s training centers or online. Online programs are open to participants from across the country.

How much time should I set aside? Plan for at least about 6 hours of classes per week plus independent work. Missing more than 30% of classes may mean you do not receive a certificate.

Will I receive a certificate? Yes, a certificate is given on successful completion of the program.

If you want to learn how to build and run networks, press the “Enroll in a program” button on this page and submit your application.