There are hundreds of millions of computers connected to the Internet. No matter what model they are, what operating system they run, and what software they use, these computers can be classified into two categories: client and server. A client is a machine that accesses other people's information. When you dial "several networks" through the telecommunications network or other ISPs, your computer will be temporarily assigned an iP address. With this temporary ID card, you can obtain information in the sea of the Internet; After disconnection, your computer will be disconnected from the Internet The IP address is also withdrawn
A server is a machine that provides information for others to access. It is also called a host. Since a server can be accessed at any time, a host must be connected to the Internet every time Website construction The IP address of Shuijiu. There are two ways for users to own the Web E-mail, FTP and other servers: self built hosts and host trusteeship. White built hosts need high-level professional and technical personnel, invest large funds to purchase software and hardware, and pay for daily maintenance and line communication without capping. The construction period is long. Vital trusteeship is economic, fast and practical.
1、 The following are two ways to build a self built host in the Windows environment. The operation steps have been introduced in Chapter 5, and only briefly introduced here.
(1) Use PWS to build your own Web server. Use Windows 98 as the platform, and use PWS as the server software. You can easily implement Web services I'WS (Personal Web Server) is suitable for creating small personal sites. 1'WS provides support for ASP programs. At present, many chat rooms, video books and IRS forums are written with AM. You can also install a mobile plug-in based on it to support websites made with PHP and JSP language
(2) Because of the convenience and ease of use of IIS (Internet Information Server), it has become one of the most popular Web server software. Using Windows 200 () and 11S dual security drop in, you can establish a secure Web server. That is, you can configure your own computer as a small Web server through IIS. Self built hosts are only suitable for small servers, because it is difficult for ordinary units or individuals to provide good website services due to the limitations of the environment (constant temperature and humidity air conditioning system in the machine room operating 24 hours a day), hardware facilities (such as routers, uninterruptible power supply systems, etc.) and network bandwidth
2、 Hosting business
Hosting business can be divided into independent hosting and virtual hosting (1) Independent Hosting Independent Hosting means that customers buy or rent a computer to be used as a server at their own discretion, and entrust an ISP to install system software and application software to build an exclusive, dedicated, high-performance server. It can realize all network service functions of "Web+FTP+Mail+DNS". Hosting it at an ISP that provides this service can save a lot of money
Special line and network equipment costs. Usually, SP also provides the host with fixed bandwidth and standard maintenance services hosted by the host
The advantages of the trusteeship business are as follows: ① The cost is low. Compared with building a separate computer room and renting a dedicated line to access the Internet, its overall operating cost is significantly reduced; High availability. The computer rooms of large ISPs provide round the clock operation services throughout the year; ③ Professional technicians are responsible for maintenance; ④ Higher safety performance. ⑤ Good flexibility. Users can start business quickly. Hosting network devices. Convenient expansion; ⑥ The backbone node of the optical fiber direct connection network effectively guarantees the stability and high-speed of the network
