Disaster recovery: When the server has problems, it can be backed up to deal with force majeure or man-made damage.
Question 2: What can I do by renting a server? Most of them are websites, and you can also hang some software that needs to be online for a long time, such as futures high-frequency trading software, or be a proxy server.
Question 3: What is the server used for? 20 minutes server
Broadly speaking, a server refers to a computer system that can provide certain services to other machines in the network (if a PC provides ftp services, it can also be called a server).
In a narrow sense, servers refer to some high-performance computers that can provide services to the outside world through the network. Compared with ordinary PC, it requires higher stability, security and performance, so it is different from ordinary PC in CPU, chipset, memory, disk system, network and other hardware.
It can also be said that the server is also a host, but the configuration is different.
The server is a high-performance computer. As a node of the network, it stores and processes 80% of the data and information on the network, so it is also called the soul of the network. Figuratively speaking, the server is like a post office switch, while fixed or mobile network terminals such as microcomputers, notebooks, PDA and mobile phones are like telephones scattered at home, various offices and public places. In our daily life and work, we communicate with the outside world by telephone, and we must go through the switch to reach the target phone; Similarly, network terminal devices, such as microcomputers in families and enterprises, have to go through the server to surf the Internet, get information, communicate with the outside world and entertain, so it can be said that the server is "organizing" and "leading" these devices.
The structure of server is basically similar to that of microcomputer, including processor, hard disk, memory, system bus and so on. They are specially formulated for specific network applications, so there are great differences between servers and microcomputers in processing capacity, stability, reliability, security, scalability and manageability. Especially with the progress of information technology, the role of the network is becoming more and more obvious, and the requirements for the data processing ability and security of your own information system are getting higher and higher. If you are stolen by hackers in the process of e-commerce, you lose key business data; If you can't access the ATM normally, you should consider the behind-the-scenes commander of these equipment systems-the server, instead of complaining about the objective conditions such as the quality of the staff.
Question 4: The company's servers have many uses. 1. You can set up an FTP server to * * * enjoy the files and materials in the LAN. 2. Set up a web server, which can put the company's web pages on the server to publish the company's information or publicize the company's image. Local area network can be accessed, and so can external network. 3. Mail server, which can establish the company's own mail service and be independent. ...
Question 5: What is the server for? As a node of the network, the server stores and processes 80% of the data and information on the network, so it is also called the soul of the network. Figuratively speaking, the server is like a post office switch, while fixed or mobile network terminals such as microcomputers, notebooks, PDA and mobile phones are like telephones scattered at home, various offices and public places. In our daily life and work, we communicate with the outside world by telephone, and we must go through the switch to reach the target phone; Similarly, network terminal devices, such as microcomputers in families and enterprises, have to go through the server to surf the Internet, get information, communicate with the outside world and entertain, so it can be said that the server is "organizing" and "leading" these devices.
It is a highly available computer, which provides various services for client computers on the network. Under the control of the network operating system, it provides hard disks, tapes, printers, modems and various special communication devices connected with them to client sites on the network, and also provides centralized computing, information dissemination and data management services for network users. Its high performance is mainly reflected in high-speed computing ability, long-term reliable operation and strong external data throughput. Hope to adopt
Question 6: To know what hardware the server can do, you can DIY the server hardware equipment yourself.
In the software part, you can configure various services yourself. This part is necessary to apply for network management.
For example, an enterprise network needs to be equipped with servers such as DNS, DHCP, file and email, or web servers and database servers. The candidates for these enterprise network management ships must be qualified.
Of course, it also includes network-related parts, as long as you know the principle and functional configuration of switches and routers.
Solve all kinds of server and network failures.
For example, if a computer in a local area network is infected with ARP virus, the whole local area network cannot access the Internet. How to find out which computer is poisoned before the virus is completely solved, and how to make other computers surf the Internet normally?
Question 7: What can I do with the server? The server can be used in different fields according to its own application. Such as OA, CRM, database, WEB, high performance computing and so on. You can go to the server manufacturer (Zhengrui server) to look online, and it will be clear in a few minutes!
Question 8: What is the server used for? What are its specific functions? Why do you want to use the server in the computer room? Let me give you an analogy. The computer room is like a shopping mall, renting a facade (server). These facades (servers) are for people to open stores and do business, some are Nike (website), some are Adidas (email), some are * * * (games) and so on. The only difference is that no one goes to the mall at night, so the mall will be closed at night and there is no restriction on surfing the Internet. Many people stay up all night. Therefore, for the sake of tourists, the server is generally open 24 hours, because if it is closed, people can't play games, visit web pages and download movies. . So what do lonely people do at night?
Question 9: What is the function of the cloud server and what can it be used for? From the use point of view, the cloud server is a server host.
The so-called server is a computer, but its configuration and physical structure are far superior to ordinary home hosts. For example, you can install multiple CPUs and plug in two power supplies. If one is broken, the computer can run normally, and the broken power supply can be replaced directly without turning off the computer. The hard disk is also equipped with RAID array, which can be replaced directly without turning off the computer, with fault-tolerant memory, more powerful motherboard and so on. Of course, these are all possessed by a physical server.
The so-called cloud server refers to a virtual server under the operating system of a physical server by using software. This kind of server does not need you to spend money to buy a host, hard disk, CPU, memory and other hardware to assemble it yourself. You can create it quickly on a web page, or you can easily add CPU number, memory, hard disk capacity and network bandwidth later. All this doesn't need you to cut off the power supply and disassemble the chassis like a physical computer, just stop the operation of the server and click the mouse on the background management of the webpage.
Virtual servers, that is, cloud servers, occupy the resources of physical servers at runtime, but it is impossible for physical servers to produce only one cloud server. Many cloud servers run on the same physical server, and if the physical server runs too much, it will get stuck.
In addition to improving the configuration and performance conveniently, the cloud server has obvious advantages: it does not need to maintain the physical server, occupy its own space to place the physical server, and do not have to worry about how to deal with the obsolete physical server. Many people can use the same physical server to dilute the cost, and many people can also use the same set of network equipment (such as firewall, router, antivirus wall, etc.). ) to reduce the initial investment and reduce investment risks. In case you quit one day, you don't have to worry about what to do with those hardware devices.
In use, we all know that even the physical server, if not around, can also log in and manage through remote tools, such as logging in with remote desktop and transferring files with FTP tools. Cloud server, because it is invisible and intangible, must be operated remotely.
In addition, if you really want to know about the cloud server, I suggest you search a famous virtual machine software "VMware Workstation" on the Internet, get a cracked version, install it yourself, try to create a virtual machine and then install a system for the virtual machine to play with, and you will know what a virtual server is.
Question 10: What is the home server for? The home server can realize what you understand.
Other computers in your home can be equipped with hard disks or not.
The home server can be used as the host of other computers in your home, and it can be turned on 24 hours (as long as the air circulation is good, it can ensure the body to dissipate heat). As long as the host is turned on, other computers can be turned on as terminals at any time.
The system is installed on the server, and the following terminals only send data requests through the network card, and the operation functions (all program operations are required) are mainly completed by the server. Data storage is also stored on the server (the terminal can also install a hard disk and set a drive letter so that it can be stored on the terminal).
This constitutes a home diskless network system. Advantages: Easy to manage (the server itself can also be used and operated as a computer, which can manage the on-off behavior of any terminal) and save the configuration cost of the terminal (the performance of the terminal has little influence on the network, and there are too many specific configurations on the Internet, so you can search a lot at will and find it yourself. )
Disadvantages: the network state is unstable, because the public IP address of home users is generally not fixed, which leads to the automatic change of the IP of the server, and the DNS of the terminal points to the IP address of the server. This will lead to the terminal often unable to connect to the public network, the need to reset DNS, and the bandwidth problem can not be improved. How much bandwidth did your home have before? How much is it now?
The biggest function of home server is that if your home is a smart home, it can connect all the smart products together to form a large home entertainment center. You can set and command all connected devices (timer switch, automatic switch, etc.). ) on the server, and the other can realize remote command. As long as you set the permission of remote service, you can operate your home server in the office. The premise is that you must apply for a fixed IP.
If you don't plan to make your home intelligent, it is not recommended that you use the home server for management.
In order to save money, any computer can be set up as a server. It's just the difference in computing power. The hard disk slot of an ordinary home computer is enough for you. After all, you only have three computers. At present, there are generally 4 to 6 SATA interfaces on the computer motherboard, and one interface can be plugged into a hard disk. At present, the maximum SATA hard disk capacity is 2TB, which is enough for you. It's just that the hard disk is too big and prone to many bad tracks. Data reading is a little slower. In this way, your terminal not only saves hard disk money (but you only have three machines at home, so you can't save hard disk money at all. As a server, the hard disk is not much cheaper than your three terminals), mainly because it saves the configuration price of the terminal, and you can run with a lower configuration. The price is that when you want to play large-scale online games, the speed will be much slower.
Generally, diskless systems are mainly used by large enterprises, which can save costs and facilitate management (enterprises mainly work in offices, and the shortcomings of slow operation have little impact). Some Internet cafes also use diskless systems, mainly to save money. However, due to the poor running speed, the number of customers has decreased (the current game running volume is too large), and many Internet cafes are not willing to adopt diskless systems at present.