An instance is a Cloud Virtual Machine (CVM), which is a virtual computing resource containing CPU, memory, OS, network, disks, and other basic computing components.
CVM instances provide secure, reliable and elastic computing services in the cloud to meet computing requirements. As business demands change, computing resources can be scaled in real time to lower your software and hardware costs and simplify IT OPS work.
Tencent Cloud provides various configurations of CPU, MEM, storage, and networking capacity for CVM instances. For more information, please see Instance Types.
An image is a pre-configured template containing an operating system and applications that CVM instances run on. Tencent Cloud CVM provides pre-configured images for Windows, Linux, etc.
Cloud Block Storage (CBS) is a highly available, highly reliable, low-cost, and customizable block storage device. It can be used as a standalone and expandable disk for CVM, providing efficient and reliable storage devices.
A VPC is a logically isolated virtual network space in Tencent Cloud.
Tencent Cloud provides private IP address and public IP address. Private IP address is for the interconnection of CVM instances within the same LAN, while public IP address is for public-facing services.
Elastic IP (EIP) is static public network IP addresses designed especially for dynamic networks to meet the demands for fast troubleshooting.
An EIP is a public IP address that can be applied for independently. It supports dynamic binding and unbinding. You can bind it to or unbind it from the CVM (or NAT Gateway instances) under your account. Its main uses are:
A security group is a virtual firewall that features stateful data packet filtering. It is used to configure the network access control of CVMs. You can add CVM instances with the same network security isolation requirements in the same region to the same security group, to filter the inbound and outbound traffic of the CVM through the network policies of the security group.
The password is a unique login credential for the CVM instance. To ensure instance security, Tencent Cloud provides the following two encrypted login methods:
Physical locations where CVM instances and other resources reside and are launched.