A while ago want to rent a stand-alone server, found it again on the Internet, inadvertently found a new host name - VPS host. From the sector, said: "VPS in the next few years will be replaced by virtual hosting space!" This statement caused me great interest, what is the VPS host it? In the end is not really replace the hosting space? We Now to understand and discuss.
I. What is VPS
VPS (Virtual Private Server Virtual Private Server) technology, is a server into multiple virtual server services exclusive. SWsoft's Virtuozzo is the use of virtual server software on one physical server to create multiple isolated and small servers. Virtuozzo is a server virtualization and automation technology, which uses the operating system virtualization. Operating system virtualization concept is based on the shared operating system kernel, so no additional virtual server virtualization to the kernel process, and thus the virtual process of resource depletion on the lower, allowing a single physical server, server virtualization to realize more . Each VPS can be assigned an independent public network IP address, operating system independent, independent large space, independent memory, CPU resources, independent, independent of implementation, and independent system configuration. Users can be assigned in addition to an unlimited number of virtual hosts and business mail, but also an independent server function, self-install program, restart the server, a separate, high-end users the best choice for web hosting. Users can no longer subject to the impact of other user programs, get a more equitable distribution of resources, far less than the failure rate of the virtual host. VPS enables users of basic functions are as follows:
1. Each a separate IP, can be landed from the 3389 terminal, enter the system with the Administrator account to complete the super-user operation, each user are completely independent and affect each other.
2. Each using a separate high-capacity hard drive logic.
3. Server software free configuration (can be configured to support your php, asp, cgi, etc.), installation of components, a database service in IIS
Which create multiple sites, you can install Serv-u ftp services such.
4. It can be used as: virtual hosting space, e-commerce platform, ASP application platform, mail server, data-sharing platform.
2, VPS hosting and virtual hosts and independent comparison of
IT Forum, which in some, it was posting that, VPS compared with the Shared Hosting There are several advantages:
1: independent of operating systems, http, ftp, ssh, sendmail, mysql are all independent, only you use a person, not a virtual host as many people share, in the security, performance, control of both degrees of freedom than the virtual host to the good. You can select what you want your php, mysql, apache, perl version, want to upgrade to upgrade, to install other software, and that they can hold.
2: highly secure, unlike the virtual host is separate from the system privileges, but in the system environment, it is completely independent. Unlike the same virtual host will be affected by the impact of other websites.
3: VPS can provide WEB, FTP services outside of their own configuration settings, to install components, set up services, installation software.
4: Resource-quota use, VPS allows you to take up system resources than the peak value of the amount required, make you a machine running services, like the outbreak of the same small universe.
5: The automatic update system software, which decreases the security risk.
6: provide VZPP control panel, can be self-management and use of troubleshooting tools: restart, repair, reinstall, backup, real-time monitoring of VPS to run. Which the operation log and resource use statistical functions to help administrators identify and remove obstacles.
7: Migration convenience from low to high to meet almost all of the upgrade requirements.
8: backup and recovery, earlier introduced, and a word, powerful!
It was also proposed, VPS compared with independent host the biggest advantages is "cheap." Compared to a separate host hundreds of dollars on the price at every turn, VPS be cheaper. Is not a big need for the host site for independent, VPS can save you money. Recommended to everyone here, a professional VPS hosting providers "Chinese Snow Network", which is currently the largest provider of overseas servers. VPS after the purchase, if not enough system resources, upgrading is easy, if necessary, as long as required to the host provider upgrades OK friends, you need to immediately increase the system resources. Some of the more high-end VPS plan is even greater than better use of low-level independent host.
3, VPS hosting can really replace the virtual host?
I personally think that there is no substitute!
VPS hosting virtual hosting space than does the use of more powerful features. However, after careful consideration, I think the industry official said the "VPS in the next few years will be replaced by virtual hosting space!" The great oath or difficult to achieve. We carefully compare to see:
In terms of the virtual host provider, VPS host has the following shortcomings:
1. Intense demand for IP addresses. Because the VPS system, each virtual server's IP address can be achieved independently, so the demand for an independent IP address will increase. The cabinet of each room, and IP resources are limited, Just imagine, a lot of independent development VPS host IDC what happens? IP running out, the results cabinets, and no empty seats also rent out!
2. Higher technology costs. Oh, read a description of IDC own, say they are doing a full month testing and internal training.
3. Higher software costs. Relative to the hosting space, VPS host of additional software need to use a VPS, the domestic is now used more SWSOFT the VITUREZZO software, this software is to be paid. These high costs, not every provider can afford.
For customers, VPS host of the following deficiencies:
1. Higher prices. VPS hosting virtual hosting space relative to the price no doubt be higher. Just the top of the cost of independent IP, they produce more of 2,000 yuan / year. Recently, a domestic IT Media wrote an article listing the top ten VPS hosting business. I went to see a family, the price is relatively high. The current network is based on China's promise to pay the low price of only 189 yuan to provide high-performance products and services to meet the needs of users.
2. Server maintenance. For some individuals, the rental of the virtual host, server security maintenance are provided by the host, if they rented a VPS hosting, server operations and security for all parties not understand, and will not use rented , headache ah, much less to someone to safeguard.
3. No property rights. This is a relatively independent servers, the, VPS hosting as many users share a server, so even if the space is willing, he can not help the property to you.
In general, VPS host or virtual host can not replace space, but may also crowd out the host and virtual host part of the independent market. The VPS host of business development not only in the WEB application, more likely in other areas, but also to meet the needs of customers more.