What is a VPS (Virtual Private Server)? VPS (Virtual Private Server) Review

VPS (Virtual Private Server) technology refers to a high-quality service that divides a server into multiple virtual private servers.

About VPS

·The technologies for implementing VPS are divided into container technology and virtualization technology. In a container or virtual machine, each VPS can be assigned an independent public IP address, an independent operating system, and the disk space, memory, CPU resources, processes, and system configurations of different VPSs can be isolated, simulating the experience of "exclusive" use of computing resources for users and applications. VPS can reinstall the operating system, install programs, and restart the server independently, just like an independent server. VPS provides users with the freedom to manage configurations and can be used for enterprise virtualization or IDC resource leasing.

Simply put, VPS is a server with a public IP.

Technical principle

1. VPS hosting is a server virtualization and automation technology that uses operating system virtualization technology. The concept of operating system virtualization is based on a shared operating system kernel, so that virtual servers do not need additional virtualization kernel processes, so virtual process resource loss is lower, so that more virtualized servers can be implemented on a physical server. These VPS hosts share hardware, software licenses, and management resources with maximum efficiency. Each VPS host can be restarted independently and has its own root access rights, users, IP addresses, memory, processes, files, applications, system function libraries, and configuration files.

2. VPS host is a virtual host implemented by VPS host vmware Server virtualization technology. Virtualization is an abstraction layer that separates physical hardware from the operating system, thereby providing higher IT resource utilization and flexibility.

3. VPS hosting technology supports both Linux and Windows platforms. The Linux version of Virtuozzo server also supports different Linux distributions with the same kernel version on the virtual server.

use

VPS virtual server technology can flexibly allocate server resources in a variety of different ways. The resources of each virtualized server can be very different, which can flexibly meet the needs of various high-end users. By creating about 10 VPS hosts on a server, it can ensure that each user of the virtual host has exclusive VPS resources, and its operation and management are exactly the same as those of a standalone host. VPS hosts can provide high-end users with safe, reliable, and high-quality hosting services. It can be used in the following aspects:

1. Virtual hosting space: VPS hosting can be divided into many virtual hosting spaces like an independent server. Each space can hold many websites. It is very suitable for providing website space for small and medium-sized enterprises, small portals, personal studios, and SOHO groups. It has larger exclusive resources and safe and reliable isolation to ensure the user's use of resources and data security.

2. E-commerce platform: VPS operates in exactly the same way as a dedicated server. Small and medium-sized service providers can use VPS to build their own e-commerce and online trading platforms at a relatively low cost.

3. ASP application platform: VPS's unique application templates can be quickly deployed in batches. Coupled with the quality of independent hosting and extremely low costs, it is the preferred platform for small and medium-sized enterprises to carry out ASP applications.

4. Data sharing platform: Complete isolation and unparalleled security enable small and medium-sized enterprises and professional portals to use VPS to provide data sharing and data download services. For large enterprises, it can be used as a department-level application platform.

5. Online gaming platform: Low price, excellent quality, and exclusive resources enable VPS to be used as an online gaming server, providing gaming services to a large number of Internet users.

6. Database storage platform: It can provide data storage functions for small and medium-sized enterprises. It is the first choice for small databases because of its lower cost than independent servers and higher security.

Procedure

1. Start-Accessories-Remote Desktop Connection;

2. Then enter your IP in the computer and enter your username in Username;

3. Then click "Connect", open another dialog box, and enter the password;

4. Click OK to enter your VPS system.

Advantages

1. VPS server is a special server hosting technology between traditional virtual hosts and independent hosts. It virtualizes a large Internet host into multiple server systems with independent IP addresses through special server management technology. These systems have no substantial difference from independent servers in terms of performance, security and scalability, and the cost is only 1/4 or 1/5 of that of renting an independent server, and there is no need to spend extra on subsequent hardware maintenance and management costs.

2. VPS servers have independent system management rights that traditional virtual hosts do not have. They solve the operation and development problems of websites that require independent host performance but do not have sufficient financial resources. They are undoubtedly a more affordable choice.

3. Compared with traditional virtual hosts, VPS servers do not use a large number of virtual hosts to share the same host hardware resources. Therefore, they have obvious advantages in bandwidth, speed, website and email security, etc., and support super administrators to achieve effective remote management, enabling enterprises to more effectively control the CGI programs, databases and other Internet resources they purchased.

4. VPS server is a new Internet business model following the independent server rental service, which is designed for enterprises that are in urgent need of a more complete e-commerce platform but are unwilling to rent expensive independent servers. It has very high practical commercial value, especially for small and medium-sized enterprises that are in urgent need of Internet services.

defect

Since VPS is a standalone server that uses virtualization software such as VM to create multiple virtual hosts, when one of the VPS is attacked or occupies a large amount of bandwidth resources, the remaining VPS will also be affected. If a VPS is hacked and the server is paralyzed, the other VPS will also be unable to work.

Password Change

1. Modify user password in Linux system:

(1) Log in to the system;

(2) Enter the command: passwd [user], where [user] is the user name whose password needs to be changed. After pressing Enter, the system will prompt you to enter a new password. To ensure the correctness of the password, you need to enter the password twice.

(3) Press Enter to change your password. Please remember your password after changing it.

2. Modify the user password in Windows system:

(1) Right-click "My Computer" and select "Manage" from the menu;

(2) Go to "Select Computer Management", click the "Local Users and Groups" menu under "System Tools", the sub-menu will be expanded, then click the "Users" menu, and all users will be displayed in the right window;

(3) Right-click the user name whose password needs to be changed, and then select "Set Password" in the menu. A dialog box will pop up. Select "Continue" and then the password change input box will pop up;

(4) Enter "New Password" and "Confirm Password" and click the "Confirm" button to change the password.