With the rapid development of information technology, network formation has become the only way for every modern enterprise. In most small and medium-sized enterprises in China, the use of the magic tool network is still very limited, the main reason is that these enterprises lack complete management ideas and control the management capability of network administrators.
The author builds on the process of growing from a computer operator who knows nothing about the network to a Microsoft Certified Network Engineer. Based on my years of work and learning experience, I would like to share with you the growth experience of a network administrator and hope to help anyone who wants to become a network administrator.
Scope of Work
In short, the network administrator is dedicated to providing services for users of the entire network. Of course, network administrators also have different divisions of labor, which are clear in large companies and network environments, such as designing and planning networks and managing network security ...... It is very systematic and professional. To reach this level, we need to have an in-depth theoretical basis and rich practical experience as a guarantee.
However, in a relatively small network environment, network administrators are responsible for all network-related matters, such as designing and planning networks, building networks, managing servers, and purchasing network devices, it is often used as a "omnipotent person. Therefore, the challenge of doing this is very great. Whether or not we can grow depends on ourselves. If you can continue to do so, and seize the time to constantly supplement new knowledge, you can eventually reach the peak of network management and become a master of the network.
How to start to deal with so many work content, we must first identify the priorities and priorities. The first step is to understand the operating system, because most of the time we are dealing with a variety of operating systems, such as Windows, Linux, UNIX, and Mac OS. It is not enough to understand the theoretical knowledge and methods of these operating systems. We must also be able to solve the problem. This requires strong operation capability and clear thinking. You can go to the Internet to check Article . When solving a problem, you must not only know the solution, but also learn to discover the cause of the problem.
First test knife
Next, we can start by managing a department network of about five computers to learn the basic knowledge of the network. At this time, you can attend some certification training courses and recommend MCSE certification training, it gives you a deeper understanding of the operating system and network. It should be noted that learning about nouns is only part of the required knowledge. What is important is how to use this knowledge in practice. The actual operation is very important for a network administrator.
Practice makes perfect
Next, we need to continue learning and growing in a larger network environment. A branch network of about 50 computers is suitable. Here, the number of machines increases and the network size increases. The management experience of about five computer networks is far from enough. The knowledge you have learned can be used here to a certain extent. You will begin to engage with new hardware, small network planning and design, network structure optimization, and the construction and management of new network services, and manage every computer user, and how to ensure that confidential company files are not leaked, how to ensure the security and good operation of servers, and how to implement mail communication among employees and other advanced network services are also on the agenda.
Here, you will become very busy, and various weird client problems will often cause you a headache, and the servers you manage will often encounter some strange situations. In the first month, you almost fought a war with them, and there was always something you could not solve. Reinstalling the system and reconfiguration have become a common practice. However, you will gradually find that your problems are getting fewer and fewer, the servers seem to be better, and the client's fault solutions are all available. After your operation training, there are also fewer phone calls. Your next goal is to further improve the server performance and provide more network services.
Guided by high-level software project managers, we will master the theories and methods of object-oriented system analysis and design, and skillfully use mature design models and design theories, ability to complete Software Framework Design Based on the system model.
Next floor
To become a network engineer at the company's headquarters, you will be faced with complex networks distributed across the country, the problems to be solved include planning and designing the network structure of the entire company, the connections between branches, the connections with the Headquarters, how the branches communicate with each other, how to ensure the safe operation of the entire network, and how assign the power and functions of the CEOS and network administrators of each branch, how to control the company's data security and so on.
Of course, network control, such as monitoring network intrusion, how to automatically install necessary software on the computer, how to remotely control the computer of each branch at the headquarters, and how to fully control the computer of employees will also become a daily task. content.
Knowledge points of network administrators
The above are some work and study suggestions. The following lists different knowledge points that need to be mastered in various periods for your reference.
1. Network Environment of about 5 computers
● Basic network knowledge: including understanding, classification, and topology of networks;
● Network Construction: network cable creation and connection of network equipment, precautions for creating network cables and wiring, and intercommunication between devices on the network
● Network Planning: how to design the network, project budget, and planning based on the enterprise's environment and requirements
● Skillful use and selection of commonly used network devices: NICs, network cables, and hubs;
● How to install Windows OS;
● Install and configure the network protocol: Understand the TCP/IP protocol and its installation and configuration methods, understand the IP address classification, subnet mask, and other knowledge, and know how to interconnect with the nwlink protocol and the Apple protocol;
● Achieve network connection sharing service;
● Common methods for diagnosing and troubleshooting computer hardware and software faults.
2. Networks of about 50 computers
● Server installation and configuration, and Client installation and configuration;
● What is a domain, how it is implemented, and how it is managed;
● Basic idea of AD service and its main installation and configuration methods;
● Object creation and management: functions, creation and management methods of user accounts and group accounts;
● DHCP installation and configuration: Understand the working principle, functions, scope creation and management of DHCP, IP address retention, and customer
Terminal settings;
● Understand how to add common clients to the domain;
● DNS server establishment and management, and WINS service installation and management;
● Use of network functions and common management operations;
● Establishment of shared resources and use of DFS: how to establish a shared resource, how to set permissions, encrypt and understand DFS
● Installation and use of network printers;
● Back up and restore data, install and configure the email server, and send and receive emails;
● Group policy and application: how to install, configure, and use remote desktop, such as PC Anywhere;
● Network Monitoring and troubleshooting, skillful use of Event Viewer and some common tools for network troubleshooting, and control and monitor network behavior;
● Skillful configuration of Various connection methods for connecting to the Internet: the ability to configure Virtual Private Network (VPN), and the ability to achieve shared network connections in various ways, understand how to configure Routing and Remote Access, configure Nat to access the Internet through a dial-up connection, ADSL or ISDN, or use various agent software, such as ISA, to enable shared Internet access for enterprises;
● Understand _ blank "> firewall concept, proficient in installing and configuring proxy, ISA, and other _ blank"> firewall systems.
3. Senior Network Engineer
● Have a deeper understanding of the network, including understanding of the network, classification and Topology; have a deeper understanding of the network protocol, and need to have a deeper understanding of the network devices at each layer; master network architecture knowledge, be proficient in dealing with network problems caused by various factors, have foresight of the problems to be encountered, and take preventive measures in advance.
