Teach you how to choose a good virtual space

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Choose a good virtual space for you webmaster Friends is very important things, if you choose a good virtual space? From my point of view, there are a lot of attention.

Words do not say, directly into the theme, the purchase of virtual space first depends on the CPU occupancy rate, is the virtual space in the Web site can occupy CPU resources such as the maximum limit. For example: If the virtual space server contains 50 virtual spaces, 50 virtual spaces have Web sites running, each virtual space CPU occupancy rate can be simply understood as 100%/50=2%, the general virtual space occupancy rate is higher, indicating that the less virtual space of the server, the better the performance of virtual space.

Second, the number of IIS concurrent connections is the number of personal accesses that can be accepted for this virtual space within 1 time periods. Briefly cite several examples of IIS concurrent connections:

Example 1, the user to download the single point of your files, after the normal disconnect, these connections are calculated in an instant, that is to say you 50 people's site can be accepted at the same time 50 point download.

Example 2, users open your page, even if you stay on the page does not make any request to the server, then the user opened a side of the next 10 minutes will also be counted as an online, that is to say that you 50 people's Web site 10 minutes to accept different users open 50 pages.

Example 3, the second situation above the user continues to open the other pages of the same site, then the number of online users in accordance with the user's last click (issued a request) after the 10-minute calculation, in this 10 minutes no matter how users click (Including new window to open) is still a person online.

Example 4, when your page has a frame (Iframe), then each more frame will be one more times online! Because this is equivalent to a user requesting multiple pages at the same time.

Example 5, when the user opens the page and then closes the browser normally, the number of users online will be cleared immediately.

Is that the best thing about not restricting IIS? Obviously this is also unscientific, the general server in the number of connections more than 10,000 is extremely unstable, you need to know that many virtual space is shared with this server, So the virtual space IIS concurrent connection number is not limited to the user is a kind of deception, but also the IDC operator of a marketing tool.

The third is to pay attention to the flow of bandwidth, virtual space flow bandwidth will generally have settings, in order to balance the bandwidth stability of virtual space servers, the general server each virtual space will set a traffic bandwidth limit, as a time limit of maximum flow of 100K. This means that the total user access bandwidth of the virtual space in 1 seconds is only 100K. The traffic bandwidth just illustrates the second performance of the virtual space. IIS Concurrent Connection number restrictions, the general domestic storage of virtual space server bandwidth has 100M, 10M, 5M several categories, even if you IIS concurrent connection number is limited, the traffic bandwidth limit, the access speed will also slow down, reduce the user experience. Traffic bandwidth There is also a concept of total traffic bandwidth, and some virtual spaces will count the total flow of the virtual space for one months. Reaching an upper limit will deny access, requiring virtual space users to purchase bandwidth this month to continue to use.

The 4th is to pay attention to support the virtual space of the file type, whether the virtual space only support HTML, or support ASP, asp.net, Php, JSP, CGI and so on. The general domestic virtual space is divided into three categories, ASP virtual space, PHP virtual space, or at the same time support asp/php virtual space. ASP virtual space is generally, html+asp with Access database or MSSQL database. PHP virtual space is generally, html+php with MySQL database.

Five, the personality can parameter whether support components, IDC operators general configuration virtual Space Server, according to the server hardware performance, use scope, security and other aspects of the installation of server components, general virtual Space Server installation support these components, JMail components, FSO components, dynamic components, Zend, GD library, RAR, online decompression package and so on.

(vi) Whether the personality parameters support the directory site, directory site means that a virtual space can support how many sites, some of the performance of a better space, support in the virtual space in the folder binding domain name set some parameters can be a subweb, through the domain name can directly access the Web site subfolders.

Seven, the personality parameters are one-way access, dual-line access, three-wire access, and so on: single access, dual-line access, three-wire access is what? After the division of Telecom Netcom, because of competition, the line for many reasons, telecommunications users access to Netcom's server is very slow, and netcom. A lot of Web sites to provide downloads and online games to provide telecom Netcom interface is this reason, whether the service provider is dual-line access to your website is the national high-speed access is very important. However, at present the domestic provision of dual-line access is not a lot.

Eight, is the IDC license: The domestic IDC industry, the general division into the license and undocumented faction two factions. License to send IDC is a business license, all the legal procedures of the legitimate business of IDC. Undocumented faction is a cottage version, there is no formal formalities, rent a Server A virtual space program to sell the kind of space. General license of the virtual space will be more expensive, undocumented virtual space is very cheap. The post-sales service of IDC has certain credibility, and the after-sale service of the unlicensed school will see the operator's moral level. Believe that a lot of individual grassroots owners have used webmaster Forum on the unlicensed distribution of the virtual space of IDC, how the effect has been the hint.

A total of eight points is my view on the purchase and selection of virtual space. I hope you can look at the purchase of virtual space and choose the virtual space IDC when there is a clear reference comparison.