Shan Hongda (lobby brother) said:

"What are you afraid of!, that's my fifth uncle, and he's there!"

Qin Xiudao:

"Uh! when I didn't say it. ”

Shan Hongda (lobby brother) said:

"By the way, Qin Xiu, are you going to play two tricks when you come in?"

Qin Xiudao:

"Oh, I was playing chess outside, but the little steward here said that he was in charge of this side, and they were missing one of the three here, and they were going to let me come over here to have a look, I don't know if I would be able to, so let's see first. ”

Shan Hongzhen (third cousin) said:

"Wow! I heard them say just now that a lot of Internet police came out and arrested the bosses, directors, network administrators, and employees of pirated websites..........................................................................................................................................................................................

The requirements of the network administrator industry for network administrators are basically large and comprehensive, and they do not need to be proficient, but they must understand everything. Therefore, to sum up, a qualified network administrator had better have solid theoretical knowledge and application skills in six aspects, such as network operating system, network database, network equipment, network management, network security, and application development, in order to be handy and comfortable in his work. The national professional qualification defines a network administrator as a person engaged in the operation and maintenance of a computer network.

According to the definition of the International Organization for Standardization (ISO), network management refers to planning, supervising, and controlling the use of network resources and various activities of the network to optimize the performance of the network. In general, network management has five functions: failure management, configuration management, performance management, security management, and billing management. Currently, the network management protocols that affect are SNMP (Simple Network Management Protocol), CMIS/CMIP (the Common Management Information Service/Protocol), and RMON (Remote Monitoring).

A network administrator is an administrator in a for-profit Internet service provision facility that is open to the public. "NMS" is a very vague concept that can be simply divided into:

Network administrator: responsible for the design, installation, configuration, and maintenance of the network architecture, and the main personnel are employees of most system integration companies.

System administrator: responsible for the installation, configuration and operation of the network server, and the main personnel are the system administrator of the IT headquarters of large companies.

Client Administrator (Desktop Support): Responsible for solving the problems of end users, such as client reinstallation, solving problems such as not being able to access the Internet and having viruses on the machine, mainly for small company IT administrators and Internet café network administrators.

The network management capability of this section

1: Understand web design

Have rich knowledge of network design, be familiar with network cabling specifications and construction specifications, understand switches, routers, servers, software and hardware, and other network equipment, master the basic technology and related technologies of LAN, plan and design LAN and WAN including routing, and provide complete solutions for small and medium-sized networks.

2: Master network construction

Master the basic knowledge of the network, have an in-depth understanding of the TCP/IP network protocol, independently complete the installation, connection, configuration and operation of network equipment such as routers and switches, build a multi-layer switching enterprise network, and realize network interconnection and Internet connection. Master the use of network software tools, quickly diagnose, locate and eliminate network faults, and correctly use, maintain and maintain hardware equipment.

3. Familiarity with cybersecurity

Design and implement a complete cybersecurity solution to reduce the risk of loss and attack. In the Internet and local area networks, routers, switches, and applications, as well as poorly managed security devices, can be targeted. Webmasters must go all out to be more vigilant to prevent threats to information security, information integrity, and day-to-day business operations from hackers, outsiders, and even disgruntled employees.

4. Familiar with network operating system

Familiar with Windows and Linux operating systems, with the ability to use advanced Windows and Linux platforms to provide enterprises with successful design, implementation and management of business solutions.

5: Understand web databases

Understand the basic principles of Web database, be able to carry out implementation and management around the Web database system, and realize the comprehensive application of enterprise data.

6: Quality ability

Have a strong desire for knowledge and the ability to learn on their own, the ability to read relevant computer professional vocabulary in English, the ability to do so, the ability to adapt to changes, the keen observation ability and the excellent ability to analyze and judge.

Responsibilities of the position in this paragraph

The network administrator has the following eight main responsibilities:

1. Infrastructure management

(1) Ensure the smooth transmission of network communication;

(2) Master the configuration of the backbone equipment and the change of configuration parameters, and back up the configuration files of each device;

(3) Equip the backbone equipment running the critical service network with corresponding backup equipment and configure it as a hot backup device;

(4) Responsible for the management of network wiring and distribution frames to ensure that the wiring is reasonable and orderly;

(5) Master the situation of the user's device access to the network, so that the problem can be quickly located when it is found;

(6) Take technical measures to manage the situation that users need to change their locations and departments frequently in the network;

(7) Master the connection configuration with the external network, supervise the network communication status, and contact the relevant institutions in a timely manner after discovering problems;

(8) Real-time monitoring of the operation of the entire LAN and network communication traffic;

(9) Formulate and publish management measures for the use of network infrastructure and supervise their implementation.

2. Operating system management

(1) After the configuration of the network operating system is completed and put into normal operation, in order to ensure that the network operating system works normally,

Web server

Web server

First of all, the network administrator should be able to skillfully use the various management tools and software provided by the system to supervise the operation of the system in real time, and find and deal with fault signs in time.

(2) During the operation of the network, the network administrator should keep abreast of the configuration of the network system and the changes of configuration parameters, and back up the configuration parameters. Network administrators should also dynamically adjust system configuration parameters to optimize system performance as the system environment changes, business development needs, and user requirements change.

(3) The network administrator shall establish a hot backup system for the key network operating system servers and prepare for disaster prevention.

3. Application system management

(1) Ensure the uninterrupted operation and good performance of various network application services, and control the losses and impacts caused by failures to a minimum extent in the event of failures.

(2) For the key network application system that requires uninterruptible, in addition to mastering and backing up system parameters and regularly backing up system business data by software means, it is also necessary to establish and configure the hot backup of the system by hardware means when necessary.

(3) For network application services with high user access frequency and heavy system load, the network administrator should also take shared technical measures when necessary.

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