1. Facilities and expenses required by Internet cafes

It is not easy to be the owner of Internet cafes. From making the project budget, setting up the Internet cafes to managing the Internet cafes, everything must be considered.

According to the red-tape regulations of Communication Administration (the immediate supervisor of Internet cafes), the unit applying for opening Internet cafes should have a business room with an actual usable area of more than 51 square meters (the room should not be too bad, and the area should not be shrunk too much, and someone will take a ruler to measure it). There are no other Internet cafes, more than 21 computers, more than one manager and more than two technicians within 211 meters of Fiona Fang, and these people will ask for on-the-job training and examination.

Location of Internet Cafe:

Are there any other Internet Cafes within 1.5 minutes' ride from your favorite place? Legal or illegal? How many? What business are they doing? Are there more people surfing the Internet or playing games? What are the price levels? Where are you located, near the business district, office district, industrial district, residential district, university, middle school and primary school? What is the flow of people? What is the age level? What is the consumption level? There are many solutions to this problem, and different people have different opinions. It is very important that there are more than two Internet cafes around. If you open them, it will inevitably lead to a price war. If someone has opened them for a while, the cost has been recovered in part or in whole, and you will be at a disadvantage immediately. After three to five months, he will hurt you and you may be dead.

Cost accounting:

This item is the most difficult to determine. How much money you will spend depends on the size of your Internet cafe and computer configuration. Here are two sets of budget plans for your reference.

Ordinary Internet cafes (except surfing the Internet, there is no future for games, and the biggest advantage is its cheapness):

Computer configuration:

Working machine: 811 motherboard integrated with sound card and video card, 11 network card, 128 memory, 31GB hard disk, 15' NC X21 sets

Server: P3 861, BX motherboard 128M 1.44M 41GB hard disk CDROM tnt graphics card 11M network card 15 color display X1 sets

network configuration: hub: D-Link 24Port 11M X1 ISDN adapter twisted pair: actual calculation

other equipment: 77cm computer desk X21 121cm computer desk X1 chair X21 computer-specific socket printer (optional)

The total * * * is about 81,111 yuan (please calculate the price according to the current market price)

Advanced Internet cafes: (All-round development, Second, No one will be afraid in three years)

Computer configuration:

Working machine: CPU VOODOO3-16M above P3 861, graphics card 128M above memory 41GB above hard disk 111M network card 17' X21 sets

Server: Intel P3 861 BX motherboard 256M 1.44M 21GB(SCSI interface) CDROM 111M network card 15' number. Control X1

network configuration: switch: D-Link 24Port 111M switch X1 ISDN adapter

Other equipment: 77cm computer desk X21 121cm computer desk X1 chair X21 computer socket printer (optional)

The price is about 1.6 million yuan (please calculate the price according to the current market price)

Advanced configuration is recommended if funds allow, because the software is suitable for computers.

licenses required by internet cafes

1. The Communications Administration applies for a Business Permit.

2. apply for the license at the designated ISP.

3. Apply for the Internet Cafe Security License. The Internet Cafe Security License is issued by the Security Section of the Public Security Bureau (Computer Information) in the area where the Internet Cafe is located, and it needs to be handled there. The staff of the Computer Security Section will ask your Internet Cafe to have a fixed person in charge of network security and conduct an assessment on the personnel. If the inspection is qualified, the Public Security Bureau of the district will issue the Internet Cafe Safety Permit to the Internet Cafe.

4. Apply for the Business License of Internet Cafe at the Industrial and Commercial Bureau

2. Network infrastructure equipment

Before computers and other equipment enter the site, the first thing to consider is the selection and construction scheme of network infrastructure equipment. The choice of network infrastructure equipment is very important. I have been engaged in networking for many years, and I often see some Internet cafe owners blindly improve the configuration of single machines in equipment selection for the sake of being cheap, while lowering the grade of network infrastructure equipment. As a result, network problems continue and the speed of surfing the Internet is extremely slow. As the foundation of building Internet cafes, network infrastructure equipment is difficult to be transformed after installation. Therefore, we should carefully plan before networking.

the basic network equipment includes network hubs, network cards, network cables, RJ45 connectors and network miscellaneous items (such as PVC pipes). When choosing these devices, we should first consider whether to build a 11M network or a 111M network. Considering the actual situation of Internet cafes, the author recommends using the 11M network to save money. If we calculate by 21 computers in an Internet cafe, we need 8 ports of 211m network hub and 1 port of 16, 21 311m network cards (PCI bus is recommended), a box of network cables (calculated by 31 square meters), 41 RJ45 connectors (more needed) and several PVC pipes. Among them, the choice of network cable is very important. It is best to use brand-name super-5 network cable for wiring, and don't save money in this respect. If you buy a Category 5 line, you need to pay attention to whether it is a "fake Category 5", that is, a Category 3 line counterfeit. Network hubs and network cards use TPLINK. The crystal head should also be selected. Generally, the money in 2 yuan is not bad. PVC pipe is a plastic pipe used to place the network cable, which has the functions of insulation and waterproof.

III. Network Implementation

1 The network topology

adopts a star network, that is, each computer is connected through a network hub.

2 preparatory work

before you start the network wiring, you should first draw a construction sketch. Confirm the placement method and location of each computer, and then indicate the node location (that is, the placement location of each computer) on the map. According to the distribution of nodes, the placement location of network hubs is determined. Attention should be paid to the placement of the gateway server (that is, the computer connected to the Internet) in line with the home direction of the Internet telephone line, because the shorter the telephone line, the better. Fig. 2 is a schematic diagram of network wiring construction.

3? Start wiring

first, pay off, determine the distance between the network hub and each computer, intercept the network cable with corresponding length, and then thread the network cable through the pipe (PVC pipe). You can also walk directly along the wall without threading the pipe. It should be noted that the length of twisted pair (network cable) should not exceed 111 meters, otherwise a repeater will be installed to amplify the signal.

then "making network connectors", that is, making RJ45 twisted pair connectors. Before talking about how to connect wires correctly, we should first explain the numbering rules of 8 twisted pairs. The numbering sequence is defined as follows: with the side of RJ45 with clips facing down, one end of the gold-plated feet of the eight wires is facing up, and from the left, it is 12345678. Let's talk about the connection of the so-called "1, 2, 3, 6". "1, 2, 3, 6" is used for uplink and downlink data transmission, and 1, 2 and 3, 6 are each a pair. We only need to use a pair of twisted wires for 1, 2 and a pair of twisted wires for 3, 6. As for the color, it only needs to be the same. If you don't use the above connection method, you can also connect 8 wires separately. The specific method is to hold RJ45 crystal head in your left hand and wire in your right hand, and connect them in the order of brown, brown white, blue, blue white, green, green white, orange and orange white, and then clamp them with wire clamps. Under normal circumstances, the wiring should use special wire clamping pliers (some experts can use needle-nosed pliers instead, but for the vast number of novices, RJ45 crystal head is one of 2 yuan, so it is better to use special wire clamping pliers for insurance). After connecting the wires according to the above method, clamp the RJ45 crystal head with the wire clamp and press it hard. It should be noted that the pressing line must be pressed to the end, usually two or three times.

then, connect the completed connector with the network card. Pay attention to inserting the connector into the slot of the network card, and gently insert it in parallel until the sound of "click" is heard, so as to ensure that the connector is in good contact with the network card.

plug the connectors made at both ends of the network cable into the network card and the network hub respectively, so that the wiring work is basically completed.

iv. networking, detection and fault diagnosis

the next work is specific networking, including physical connectivity and peer-to-peer interconnection of computer operating systems. Judging whether the computer is physically connected or not is simple: check whether the indicator light on the network card or the corresponding indicator light on the network hub is normal. Generally, the green light on the network card indicates network connectivity.

The physical connection of the network alone can't make the whole network work. You must configure the network for each computer. First, install the network card. Network cards can be divided into PCI and ISA according to bus standards. If you buy a PCI network card, there will generally be no problems in installation and setup; If you buy an ISA network card, you may encounter conflicts between hardware devices during installation. At this time, you can reset IRQ and I/O with the diagnostic program in the network card driver. Insert the network card into the motherboard, and after restarting the computer, set it in Windows. Select Add → Adapter in the Network option of Control Panel, and then select the manufacturer and network card model. After pressing OK, the added network card device will be displayed in the network window, and the corresponding network protocol and network client will be installed. Note that you only need to install TCP/IP protocol, Microsoft network clients, files and printers. Double-click "TCP/IP Protocol" and fill in the local IP address, subnet mask, gateway address and IP address of DNS server in the IP dialog box that pops up. For example, the author's settings: the local IP is 192.168.1.1 ~ 192.168.1.21; The subnet mask is 255.255.255.1; The gateway address is 192.168.1.1; The address of DNS server is 61.128.128.68.

open the "logo" tab in the network dialog box, which is the place to give the machine a network name and divide the workgroup. Fill in the computer's network name in "Computer Name", and others can use this name to access your machine in "Network Neighborhood"; Then fill in a workgroup name in "Workgroup", and the workgroup names must be the same in the same LAN.

now check whether the network is connected. Double-click "My Network Places" on the Windows desktop. If you see yourself and other computer names in the open window, it means that the network is connected.

If you can't see the computer name in My Network Neighborhood, you can diagnose it according to the following steps:

1. Check whether the network is physically connected.

2. if you just can't see your local name, check whether the "file and printer * * *" service has been added.

3. If there is only yourself in the "Network Neighborhood", first ensure that the network physics is connected, and then check whether the workgroup name is consistent with other computers.

4. If you can't see anything, it may be a problem with the network card settings. Check the network card settings again, or try a new network card.

5. Diagnosing with network detection tools such as Ping and Tracert is not explained here due to space limitations.

V. Access to the Internet

At present, the more economical way to access the Internet is to use Modem or ISDN dial-up to access the Internet, which is also the first choice for Internet cafe owners. Of course, if the grade requirements are higher, you can also choose DDN/ADSL dedicated line access. Designate a computer as the gateway server in the Internet cafe. After dialing in, all the machines in other local area networks can enjoy the dial-up connection of this machine. * * * Access to the Internet can only be achieved by installing TCP/IP protocol in all Internet access machines and installing proxy service software in the gateway server.

there are two advantages to using proxy server: first, it can use its large cache to improve the speed of surfing the Internet; Second, it can act as a firewall. There are two types of proxy server software: one is a "Cache" proxy server with caching function, such as Wingate, Winroute, MS Proxy, etc. The other is a simple "gateway type", such as Internet connection in Sygate and WIN98SE. Because the setting and management of the "Cache" proxy server is more complicated, it is beyond the scope of this article. Please refer to the relevant books separately (Editor's note: the setting and management of the "Cache" proxy server ——Wingate is introduced in detail in the 19 edition of this issue). Here, the author briefly introduces the installation and use of WIN 98 SE (the second edition of WIN 98) Internet connection * * *.

1. install the Internet connection in WIN98SE * * * and enjoy the service

first, ensure that the local area network inside the internet cafe is connected, and then choose a computer as the network shutdown. Install WIN98SE version of the operating system on the gateway machine, and install Modem or ISDN at the same time to ensure that the dial-up Internet access of the machine is normal. The method of adding Internet connection * * * is very simple. Select Internet connection * * * in the Internet Tools option of Windows Installer and follow the prompts to install it. The IP address is set to 192.168.1.1.

2. Settings of client computers

In the fourth part of this paper, "Networking, Detection and Fault Diagnosis", the author has already introduced the networking settings of computers, just follow the above methods. The most important point is to specify the gateway address as 192.168.1.1, which is the IP address of the network shutdown. In addition, the IP address of the DNS server can be set as the DNS server provided by ISP, such as 61.128.128.68. Use the Ping command on the client's computer to check whether it has been connected to the Internet through * * * (as shown in Figure 5). If you Ping the specified IP on the Internet, it means you are done.

VI. Precautions for the erection and maintenance of Internet cafes

In fact, the work of setting up a network is very practical, and you must do it yourself to have a deeper understanding of some essentials of building a network. I don't have much experience to talk about. Some important experiences gained by the author in the process of setting up Internet cafes are listed as follows:

1. The installation and setting of ISDN is not much different from that of ordinary Modem, but if you want to surf the Internet at 128K speed, you need to double-click "Properties" on the established ISDN dial-up network connection, select "Multiple Link", "Use Additional Equipment" and "Add", and select "ISDNLine1".