(1) applying for a domain name; (2) Apply for a line to access the Internet; (3) LAN wiring; (4) Installation and setup of the server.

Here we will explain these four aspects in detail:

First, apply for a domain name:

First, think of several good domain names for your company, and apply for a domain name suffix as usual, for example, companies can apply for a com suffix or a com.cn suffix, government departments can apply for a gov.cn suffix, scientific research institutions can apply for a ac.cn suffix, and education departments can apply for a edu.cn suffix.

You can apply for the. cn domain name in nic.cn (China Internet Information Center), and he also applies for it on behalf of international domain.

The main tasks of CNNIC are:

Registration services: domain name registration, IP address allocation, autonomous system number allocation, etc.

directory database service: establish the highest-level network directory database in China; Provide query services for information about networked users, network addresses, domain names, autonomous system numbers, etc.

information service: conduct a statistical survey on the development of Internet in China; To provide inquiry services on Internet policies, regulations and other Internet-related materials in China.

Website visitor traffic authentication: In order to promote the healthy development of China's Internet information service industry, we advocate the standards of website traffic authentication, and provide statistical authentication of website visitor traffic to all sites.

certification training: in order to promote the popularization and development of the Internet in China, various courses are set up to meet the needs of users at different levels, and various levels of Internet technology and application training are provided to the society.

In addition, CNNIC also undertakes national scientific research projects related to the Internet and provides Internet technical consultation and services to the society.

as a national internet information center, CNNIC conducts business contacts with Internet information center (InterNIC), Asia-Pacific Internet Information Center (APNIC) and other internet information centers on behalf of all internet units in China.

in addition, there is a good place to register international domain or. cn domain names, and that is China Wanwang (). Chuanglian Wanwang International Information Technology (Beijing) Co., Ltd..

Of course, you can also go to some big ICP or ISP to register your domain name. In short, when you fill in the necessary forms (online or normally), you can wait for the reply from the domain name registration agency, and your domain name application will be successful after the domain name registration agency gives you the exact information. Don't forget to pay the annual domain name registration fee in the future (the current domain name management fee is generally:. cn every year in 3 yuan and international domain every year in 2 yuan).

if you find that your famous registered trademark has been registered by others, you can apply to the domain name registration agency and ask him to return the domain name with the same name as your registered trademark. Because in the Interim Measures for the Administration of Internet Domain Name Registration in China, there is a clause: "You shall not use the enterprise name or trademark name that others have registered in China". Therefore, before registering, you'd better read CNNIC's Interim Measures for the Administration of Internet Domain Name Registration in China and the Detailed Rules for the Implementation of Internet Domain Name Registration in China carefully, so as not to cause unnecessary troubles to yourself and others.

2. Lines to apply for Internet access:

At present, there are 9 Internet access units approved by the state: China Telecom, China Unicom, China Jitong, China Education Network, cstnet, China Netcom, China Great Wall Internet, China International Economic and Trade Internet and China Mobile Communications Group Internet. At present, only the top five companies have international export bandwidth, and two of them (China Education Network and cstnet) are unable to conduct commercial operations.

At present, the secondary and tertiary backbone nodes of China Education Network are connected to the Internet through DDN, while the secondary backbone nodes in cstnet are mostly connected to the Internet through satellite antennas, and the Jinqiao network of Jitong Company is also connected to the Internet through satellite antennas. Therefore, when applying for a line to access the Internet, it is best to investigate the local connection of major networks first, compare the price and network bandwidth, and choose a more suitable access method.

for small units, you can apply for ISDN, X.25, DDN and other network access methods in the telecommunications sector, mainly depending on the number of network users and the economic strength of the unit.

For large companies, cstnet's satellite access is a good choice. The total investment of building a satellite antenna receiving station is about 2, yuan. After the satellite antenna receiving station is completed, the monthly fee is 13, yuan (128K, 21, yuan) for the bandwidth of 64K, so that the network resources can be used indefinitely.

If you need to know about the telecommunications sector, you can go to Beijing Information Port () first, or you can go to information ports around the country to make inquiries. For example, if you are in Hunan, you might as well go to Hunan Information Port (info.net) and Changsha Information Port (info.net) first, where there is a complete collection of information service charges, so you might as well study and compare them carefully.

if you need information about cstnet, please go to cstnet Network Operation Center ().

If you need to know about China Education Network, please go to China Education and Research Computer Network ().

if you need information about China jinqiao network, please go to China jinqiao network information center ().

after determining the access line, apply to the relevant departments and purchase the necessary access equipment, this step is completed. After this step is completed, you can get the corresponding network parameters, such as IP address segment, mask, etc.

Third, local area network wiring:

Let's assume that there is only one building here, and there are five floors with 2 rooms on each floor. Now a local area network is to be built here. How can we wire the local area network in this building?

First consider the network topology:

The local area network topology mainly includes star, ring and hybrid. The choice of topology structure is closely related to network usage, transmission medium and access control method. The star topology consists of a central node and each node connected to the central node through a point-to-point link. The central node implements a centralized communication control strategy to reduce the processing burden among each node. Compared with other structures, star network has the following advantages:

Central node and hub are centralized in one place, which is convenient for providing services and network reconfiguration;

The connection points in the network are often prone to failure. In the star topology, a single point of failure only affects one device and will not cause the whole network to collapse.

Because each sub-node directly reaches the central node, it is easy to detect and isolate the fault, and the fault point can be conveniently deleted from the system;

any connection in a star network only involves the central node and sub-nodes, so the method of controlling media access is very simple.

star topology is widely used in situations where network management is concentrated in the central node. Due to the popularity of distributed computing environment, hub/switch-centric star topology is widely adopted.

in view of these advantages of star network, here we use star network topology for LAN wiring. The star network structure of switch-hub-client is adopted, and the connection in the middle is unshielded super-five twisted pair.

considering the mature gigabit network, we can choose a 1/1M adaptive 12-port small switch as the central node and put it in the central computer room. Each floor is equipped with one (or two) 24-port HUB, and 1 wires are laid out from the switchboard in the main room. Two wires in each floor (if only one HUB is placed in each floor, one wire is left for standby) are connected to the HUB. Each room is equipped with one (or two) network interface module, and then the network cables in each room are laid to the corresponding hubs.

Of course, the network company is invited to do the LAN wiring. You only need to put forward the general design scheme. After the network cable is laid, the LAN wiring is completed after passing the test and drawing the drawings.

IV. Installation and setup of the server:

The next step is the most critical step in the construction of the local area network. That is the selection and installation of server operating system, DNS configuration, installation and configuration of mail server, etc.

(1) Selection of server operating system:

There are three main operating systems that can be used as network servers:

One is Solaris operating system based on SUN workstation platform, the other is Linux free operating system based on microcomputer, and the other is Windows NT operating system based on microcomputer.

Solaris operating system needs the support of SUN workstation, which is not suitable for small enterprises without SUN workstation (it is suitable for large enterprises and has good stability); Although the free Linux operating system is free, it is not easy to operate and suitable because of too many versions and too little technical data. Therefore, we choose Microsoft's Windows NT Server 4. Chinese version as our server operating system, which is not stable enough and consumes resources quickly. Therefore, it is only suitable for small enterprises, but not for large enterprises.

(2) Preparation for the installation of Windows NT Server 4. Chinese operating system:

First, you need to create Windows NT Server installation disks (3 3-inch floppy disks). The specific methods are as follows:

1. Insert the Windows NT Server CD into the CD-ROM drive. If the Windows NT CD-ROM window appears, close it.

2. Enter the MS-DOS state, assuming that drive F is the drive letter of the optical drive:

(1)F: Enter (2)cd i386 Enter (3) WINT/OX Enter

3. According to the screen prompts, label the empty disk as "Windows NT Server Setup Disk #3", insert drive A, and click "OK".

4. according to the screen prompts, label the empty disk as "Windows NT Server installation disk #2", insert it into drive a, and click "ok" to prepare disk #2 for the installer.

5. follow the screen prompts: label the empty disk as "Windows NT Server Installation Boot Disk", insert it into drive A, and click "OK" to prepare the quotation mark disk for the installer.

6. when the disk preparation is completed, a command prompt appears, close the "command prompt" window, and take out the CD and floppy disk.

(3) Install Windows NT Server 4. Chinese version:

1. Insert the Windows NT Server boot disk into drive A, start the computer, and the "Windows NT Installer" screen will appear. Here is the setup program loading files (…).

2. prompt to insert Windows NT Server installation disk #2, and press enter when you are ready.

3. The "Welcome to the installer" of Windows NT Server installer appears:

To learn more about the installation process of Windows NT, press F1 to start installing Windows NT, press Enter to repair the 4. Chinese version of Windows NT Server damaged during the last installation, press R to stop installing Windows NT and quit the installer, and press F3. Press enter.

4. Prompt for mass storage device detection: press Enter to continue, try to detect mass storage devices in the computer, skip mass storage device detection, and press S .. Press enter.

5. Prompt to insert Windows NT Server #3 disk, and press Enter when you are ready.

6. the installer has detected the following mass storage devices: ide CD-rom (atapi 1.2)/PCI ide controller. if there is a floppy disk for mass storage devices, press s, and if there is no floppy disk for mass storage devices, press Enter. Press enter.

7. Windows NT license agreement, press Page Down to read the contents of the license agreement for many times, and finally press F8 to indicate agreement.

8. Setup has detected that the computer contains the following hardware and software combinations. If it is not changed, press Enter.

9. display disk partition: install Windows NT on the highlighted disk partition or unpartitioned space, press Enter to create a new disk partition on the unpartitioned space, press c to delete the highlighted disk partition, and press d. When installing for the first time, you can move the cursor to the first unpartitioned space, press C and press Enter to confirm. If you are installing again, you can first select D to delete the original partition (at this time, you are prompted to press D to delete the partition, and press Esc to not delete the partition), then move the cursor to D: New (unformatted) and press Enter.

1. Select NTFS or FAT file system: format this disk partition with FAT file system and format this disk partition with NTFS file system. As a server, from the aspects of security and management, we should choose NTFS file system format disk.

11. the installation directory is \winnt, and press enter to confirm.

12. the installer detects the hard disk: allow the installer to perform this detection on the hard disk, press Enter, skip this detection, and press Esc. Press enter.

13. Copy the file and display the progress percentage.

14. Prompt to take out the floppy disk, press Enter, and restart the computer.

15. Windows NT installer 1) Collect information about the computer; 2) Install Windows NT network; 3) Complete the installation. Press next.

16. enter "name" and "organization" in the name and organization respectively, and click next.

17. Register, enter the registration code at the CD code, and click Next.

18. There are two ways of license agreement: "per server" and "per customer". If the former is selected, how many simultaneous connections must be set. After installation, the "per server" mode can be changed to "per customer" in one direction. Press next.

19. enter the name of the computer at the computer name (