What Is a Smart Host?

The host computer is the main part of the computer except for the input and output devices. It is also a control box (container Mainframe) for placing the motherboard and other main components. Usually includes CPU, memory, motherboard, optical drive, power supply, and other input and output controllers and interfaces.

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Host is

1. Cyberspace

1.Chassis (the shell of the host, used to fix each

What is dual-line virtual hosting

Double line

The cost is low. Although the online information release has obvious advantages in publicity functions, the low cost is still unimaginable. Radio and television advertising

1, the first element speed

Here are two points of speed today.

First, the speed of the host lease. The speed of the host is the first mentioned feature, our host, the best choice when buying a lease, the first ping the host speed, or test the download speed. Most of the spaces now provide trial services, and trial payment is satisfactory. Therefore, if a space trial service cannot be provided, we must pay more attention or simply give up.

Second, processing speed. When helping us solve the problem of the host we rent, space is essential, especially the processing speed, which can reflect the formality and reputation of the space provider. If the hosting issue is delayed by the space provider, it has not been resolved, but fear of death. The speed at which some spaces provide after-sales service to solve problems is completely different, which is quite disgusting.

2. The second element of security

If the website is visited for 3 days, and ask the space provider to attack the host or computer room, and the security space is a problem. Having our website does not necessarily guarantee that it will not be attacked. The most important thing is to see if they provide data backup services. If our website fails, the website cannot be restored in time.

3, the third element line selection

Our mainframe rental in China, the main points of telecommunications and China Netcom line. Many IDC providers hype their two hosting leases, saying only that it is more expensive than a single line, so a little bit of speed sharing between North and South. However, some people say that this is simply nonsense, and it will be better. I don't know if this can be a North-South exchange. I think the main distribution area or customer group chosen is that according to their own website, the general Southern Telecom users and the majority of users are amazing. The country's customers and funds are allowed, then choose two hosts.

4. Fourth element value-added services

We buy a dedicated mainframe that will have a separate control panel that facilitates all the space we manage. Combined with the domain database access error page settings and FTP information management, I checked what was originally called the host management system. The ability of this technology is not strong. The webmaster is quite useless. However, in order to purchase a hosting service provider that does not have this requirement for renting hosts, it can help us upload the rented hosts. Although downloaded online, but how should I say, I think the commercial space version will be more secure.

5. Fifth element reputation

I think reputation is the most important when choosing a host to rent, so I put the last focus.

The two-line virtual host is actually a server with two lines of telecommunications and Netcom access. Through intelligent analysis of the user's IP address, the telecommunications user can access the telecommunications line, and the Netcom user can access the netcom line. . According to different computer room access methods, there are three types of access methods for dual-line service access: single IP access, single network card dual IP access, and dual network card dual IP access. The best is single network card dual IP access. Provide a telecom IP and Netcom IP respectively. What are the effects of the two-line and multi-line technology? There are two key issues. One is the network card and IP working mode. The other is whether the intelligent analysis of the user's IP address is stable and reliable.

Selection of host network card

1. Dual network card and dual IP dual line: In the early days, some computer rooms could not be switched on the router in the computer room due to their own technology / equipment. Only one server and two network cards could be used. As a result, server routing randomly fluctuates, and user access is fast and slow, or even completely inaccessible, which is actually a backward method that has been eliminated.

2. Single-line and dual-line: single-line and single-IP achieve dual-line. This is an emerging routing technology. This IP does not belong to any telecommunications operator. When analyzing, it automatically determines the type of line for the visitor and makes the IP follow that Line to meet the needs of each line. However, the single-IP dual-line service switches the corresponding telecommunication / netcom line according to the user line at the router level in the equipment room. Since most dual-line computer rooms obtain IP addresses from telecommunications and Netcom, they do not have the authority to switch lines, which makes it impossible to reach the entire network. The purpose is fast, but some computer rooms with IP autonomous domains cannot obtain sufficient bandwidth from Telecom / Netcom, resulting in unsatisfactory user access speeds.

3 Single network card and dual IP intelligent dual line: This method is a bit similar to the above, but because two IPs are bound to a single network card, you can obtain IP addresses from Telecom / Netcom respectively and use the domain name resolution server for intelligent switching to avoid In view of the weakness of the single IP and dual lines, fast access to the entire network is truly realized.

On the Internet, some operators use third-party ISP lines to achieve the dual-line effect, which is the use of non-telecommunications and non-netcom lines, such as mobile and China Unicom. The speed of this line to connect to both telecommunications and China Netcom is very good, the effect is similar to the real two-line, but after all, there are bandwidth restrictions, small websites are very fast, large websites are not.

Therefore, when you choose, you can choose a single network card dual IP dual line or a third-party ISP line as much as possible, the effect is good.

IP Host IP address resolution

No matter which kind of dual line, you need to analyze the IP addresses of the user and the server to select the line, so IP address resolution technology, equipment, and a comprehensive and large address database are very important-the principle is that when users visit a website First query the DNS server's IP address for this website, and the DNS server will determine whether the user is accessing the Internet via Telecom or Netcom? It is the telecommunications IP address that is returned when the telecommunication is online; it is the IP address that is returned by the Netcom when it is online; this achieves the purpose of intelligent judgment and intelligent identification. Because this resolution technology has a certain threshold, not every operator can achieve it, and only a two-line host that uses intelligent DNS resolution can be said to be a true two-line service.